LEDR Series Digital Microwave Radios Covering LEDR 400S/F, 700S, 900S/F, 1400S/F Models Including Protected (1+1) and Space Diversity Versions P/N 05-3627A01, Rev. D JANUARY 2003 Installation & Operation Guide Microwave Data Systems Inc.
QUICK-START GUIDE LEDR Series radios are supplied from the factory in matched pairs and are configured to user’s specifications. There are a few steps necessary to place the pair on-the-air communicating with each other. Once this is done, system-specific parameters will need to be reviewed and changed to match your requirements. Below are the basic steps for installing the LEDR radio. For more detailed instructions, please see “INITIAL STARTUP AND CONFIGURATION” on page 25.
TABLE OF CONTENTS 1.0 INTRODUCTION .................................................................................................................. 1 1.1 1.2 1.3 1.4 Product Description ....................................................................................................................... 1 LEDR Features .............................................................................................................................. 2 Typical Applications .....................................
.2 STEP 1—Power up the LEDR Radios ......................................................................................... 25 4.3 STEP 2—Establish Communications with the Radio .................................................................. 26 4.4 STEP 3—Make Initial Login to Radio .......................................................................................... 26 4.5 STEP 4—Change the SUPER Password .................................................................................... 27 4.
8.0 UPGRADING LEDR FIRMWARE ....................................................................................... 93 8.1 Introduction .................................................................................................................................. 93 8.2 OPTION 1: Uploading Firmware via the CONSOLE Port ............................................................ 94 Setup.......................................................................................................................
Redundant Specific Parameters ..................................................................................................109 Sample Redundant Configuration Session ..................................................................................109 Transmit Clock Selection (Subrate Models Only).........................................................................110 12.0 SPACE DIVERSITY OPERATION................................................................................... 111 12.1 12.2 12.
EIA-530-A Data—Rear Panel ...................................................................................................... 128 G.703 Data Connectors (4)—Rear Panel ....................................................................................128 Service Channel—Rear Panel ..................................................................................................... 129 Alarm—Rear Panel ........................................................................................................
Manual Revision and Accuracy While every reasonable effort has been made to ensure the accuracy of this manual, product improvements may result in minor differences between the manual and the product shipped to you. If you have additional questions or need an exact specification for a product, please contact our Customer Services group using the information at the back of this guide. Microwave Data Systems reserves its right to correct any errors and omissions.
1.0 INTRODUCTION This manual is intended to help an experienced technician install, configure, and operate one of the digital radios in the MDS LEDR Series: 400S/F, 700S, 900S/F or 1400S/F. The manual begins with an overall description of product features and is followed by the steps required to install the radio and place it into normal operation. After installation, we suggest keeping this guide near the radio for future reference. 1.
In addition, the LEDR Series is available in a space-diversity configuration to allow dual receive paths to improve system availability. See SPACE DIVERSITY OPERATION on Page 111 for detailed information. 1.2 LEDR Features • General—Common to all models • Network Management via SNMPc version 1 • Protected Operation (1+1) Compatible • 1.
1.3 Typical Applications • • • • • • • Point-to-point transmission applications Cost-effective, “thin route” applications Long haul telecommunications links Cellular backhaul Last-mile links Trunked radio links SCADA systems 1.4 Protected Configuration A second configuration of the LEDR product is the protected configuration in which two LEDR radios are monitored and controlled by a third unit, the Protected Switch Chassis shown in Figure 2.
2.0 MODEL NUMBER CODES The complete radio model number is printed on the serial number label affixed to the chassis. The following series of figures (Figure 3, Figure 4 and Figure 5) show the significance of each character in the LEDR 400, 900 and 1400 model number string, respectively. Contact the factory for LEDR 700S data, and for information on optional configurations.
Invisible place holder DUPLEXER N = None (Optional External) * 1 = 9 MHz * 2 = 3.6 MHz (External) None * 3 = 760 MHz; None * 4 = 9 MHz; (Internal) Redundant @ 5 = 3.6 MHz; (External) Redundant @ 6 = 76 MHz; (Internal) Redundant @ 7 = 9 MHz; (Internal) Space Diversity # 8 = 3.6 Mhz; (Internal) Space Diversity # 9 = 76 MHz; (Internal) Space Diversity # MODEL NUMBER CODES ARE SUBJECT TO CHANGE. DO NOT USE FOR ORDERING PRODUCTS.
Invisible place holder DUPLEXER N = None (Optional External) & R = None (Wired for External) Redundant * 1 = Internal & 2 = Internal; Space Diversity % MODEL NUMBER CODES ARE SUBJECT TO CHANGE. DO NOT USE FOR ORDERING PRODUCTS.
3.0 HARDWARE INSTALLATION AND BASIC INTERFACE REQUIREMENTS 3.1 Introduction Installation of the LEDR radio transceiver is not difficult, but it does require some planning to ensure optimal efficiency and reliability. There are two major installation objectives; first, obtain good radio communications between LEDR sites, and second, configure the data interface to complement your data equipment. This section provides information to assist you in successfully completing the first phase of installation.
Invisible place holder DATA INTERFACE GRID DISH ANTENNA TO DC POWER SOURCE (24 or 48 Vdc as appropriate) LOW LOSS COAXIAL CABLE CHASSIS GROUND LEDR RADIO Figure 6. Typical Station Arrangement Site Selection For a successful installation, careful thought must be given to selecting proper sites for the radios and antenna systems.
The requirement for a clear transmission path depends upon the distance to be covered by the system. If the system is to cover only a limited distance, say 5 km (3.1 miles), then some obstructions in the transmission path may be tolerable. For longer-range systems, any obstruction could compromise the performance of the system, or block transmission entirely.
Keep the following points in mind when setting up your point-to-point system: 1. Systems installed in lightly populated areas are least likely to encounter interference; those in urban and suburban environments are more likely to be affected by other devices operating in the radio’s frequency band and adjacent services. 2. Directional antennas must be used at each end of a point-to-point link.
Invisible place holder Figure 7. Typical Grid Dish Antenna Table 2 lists common grid dish antenna sizes and their approximate gains. Note: Each antenna is designed to operate within only one frequency band. Table 2. Dish antenna size vs. approximate gain (dBi) Antenna Size Meters (feet) 400 MHz Gain 700 MHz Gain 900 MHz Gain 1400 MHz Gain 1.2 Meters (4 feet) 13.1 dBi 15.85 dB 18.4 dBi 23.7 dBi 2.0 Meters (6 feet) 16.3 dBi 19.05 dB 22.0 dBi 26.1 dBi 3.0 Meters (10 feet) 19.6 dBi 22.
The following tables (3, 5, 6 and 6) can be used to select an acceptable feedline. A table is provided for each of the three bands for which the LEDR radios are available. Table 3. Feedline Loss Table (450 MHz) 3.05 Meters (10 Feet) 15.24 Meters (50 Feet) 30.48 Meters (100 Feet) 152.4 Meters (500 Feet) RG-8A/U 0.5 dB 2.5 dB 5.1 dB 25.4 dB 1/2 in. HELIAX 0.1 dB 0.8 dB 1.5 dB 7.6 dB 7/8 in. HELIAX 0.1 dB 0.4 dB 0.8 dB 4.2 dB 1-1/4 in. HELIAX 0.1 dB 0.3 dB 0.6 dB 3.1 dB 1-5/8 in.
3.4 Radio Mounting The radio can be mounted either in a 19-inch equipment rack or on a table top. It should be located in a relatively clean, dust-free environment that allows easy access to the rear panel connectors as well as front panel controls and indicators. Air must be allowed to pass freely over the ventilation holes and heat sink on the side panel. The dimensions of LEDR Series radios are: • 305 mm (12 in) deep • 426 mm (16.75 in) wide—Excluding rack mounting brackets • 45 mm (1.
3.5 Front Panel Indicators, Text Display and Navigation Keys Figure 8 shows the details of the LEDR radio’s front panel indicators, LCD text display, and menu navigation keys. MENU NAVIGATION KEYS LCD TEXT DISPLAY STATUS LEDS SCROLL MODE INDICATOR SYMBOL ALARM STATUS LEDS Figure 8. Front Panel Indicators, Text Display and Keys LED Indicators The front panel LEDs indicate various operating conditions as outlined in Table 7. Table 7.
Invisible place holder Figure 9. Menu Navigation Keypad The keys can be used for two tasks—navigating through menus, and editing user controllable parameters. The functions of the keys are automatically selected according to the screen that is being viewed by the user. Menus The LEDR radio contains 16 primary menus as listed below. These primary menus serve as entry points to a variety of submenus that can be used to view or adjust operating parameters and diagnose the radio link.
The left and right arrow keys move the cursor in the corresponding direction. When the cursor is below the character you wish to change, press ENTER . The arrow keys are then used to step though the character set, beginning with numbers, then uppercase letters and finally lowercase letters. Each time you press one of the arrow keys, the display will step to the next character. If you press and hold the arrow key for several seconds, the characters will scroll by very quickly.
channel, however, it will reduce the throughput efficiency of any data communications on the Service Channel during periods of voice transmission. See “USING ORDERWIRE” on Page 99 for more information. The second connector is a DB-9 type with a computer icon over it. Here is where you can connect a computer’s serial port for unit configuration, diagnostics and firmware upgrades to the radio. CONSOLE Invisible place holder CONSOLE ORDERWIRE HANDSET (COMPUTER) Figure 10.
LEDR “F” Series The rear panel of the LEDR “F” Series radios is shown in Figure 12. Refer to the descriptions that follow for specific information regarding rear panel connections. Invisible place holder Power Plug Detail (see text) • Four RJ-45 connectors • DB-68 Connector for G.703 interface to Protected Switch Chassis. SERVICE CHANNEL ETHERNET RX Antenna/TX G.
G.703/Expansion Data The type of connector(s) at this location on the rear panel depends on several factors: the type of interface required by the customer premises equipment (CPE) and whether or not the radio is part of a protected (redundant) configuration. See Table 8 for details. Table 8. G.703/Expansion Data Connector Model(s) Configuration Data Interface G.703/Expansion Connector LEDR 400S LEDR 700S LEDR 900S LEDR 1400S Stand-alone EIA-530 Blank. No connector(s) installed.
Ethernet in a Protected Configuration The Ethernet connections on the LEDR radio chassis in a protected configuration should not be used. The Ethernet connector of the Protected Switch Chassis (PSC) provides a connection to the two radio units. Each radio has a unique IP address and is individually addressable/controllable using SNMP over IP. See “PROTECTED CONFIGURATION” on Page 103 for general information and Figure 34 on Page 128 for ETHERNET connector pinout details.
Data and RF cabling for the repeater station configuration is shown in Figure 14. Repeater Configuration TO DUPLEXER OF ANTENNA SYSTEM A (Radios with external duplexer) TO ANTENNA SYSTEM A (Radios with internal duplexers) RADIO A G.703/Expansion Data RX Ethernet NMS EIA-530-A Service Channel Alarm I/O DC Power Input TX External Data Interface EIA-530 NULL-MODEM CROSSOVER CABLE (Subrate Only) P/N 97-2841L06 (6´/1.8 m) UP TO 4 x G.703 CROSSOVER CABLES (Fullrate only) RADIO B G.
Input Connections In addition, four external alarm input lines (Pins 1, 2, 3 & 4) are provided. Normally, the input is either left open or shorted to ground, to indicate an alarm condition. Each alarm input is diode-clamped to +3.3 Vdc or chassis ground, and can tolerate inputs from -4 to +6 Vdc without drawing excessive current. If left open, each input is pulled up. To indicate an alarm condition, short the input pin to the ground provided on the alarm connector (Pin 5).
Protected Configuration Connections There are several connections between the LEDR radio chassis and the Protected Switch Chassis. They include the primary data interface, RF, Ethernet, orderwire and Service Channel. Details on cabling and other items relating to the protected (redundant) configuration appear in PROTECTED CONFIGURATION on Page 103. 3.7 Bandwidths, Data Rates and Modulation Types The hardware in the LEDR chassis is configured at the factory for a specific bandwidth.
Table 11. Fullrate Bandwidth vs. Modem Selection Code Radio Bandwidth Configuratio n Code Data Rate(s) Modulation 500 kHz C7 E1 32-QAM 1000 kHz B7 E1 16-QAM C7 E1 32-QAM C8 2E1 32-QAM A7 E1 QPSK B7 E1 16-QAM B8 2E1 16-QAM C8 2E1 32-QAM C10 4E1 32-QAM 2000 kHz 3.8 Transmit Clock Selection (Subrate Radios Only) For a subrate radio, transmit clock arrangement must be set by the user. Clocking arrangements for fullrate radios is automatically handled by the LEDR radios.
SITE A SITE B CPE Customer Premises Equipment (CPE) CPE LEDR Radio Clock Source Over-the-Air RF Path LEDR Radio Clock Source Customer Premises Equipment (CPE) Internal Clock External Clock Looped Clock External Clock External Clock Internal Clock Looped Clock External Clock Figure 14. EIA-530 Clocking Arrangements for Protected (1+1) LEDR Radio Operation 4.0 INITIAL STARTUP AND CONFIGURATION 4.
4.3 STEP 2—Establish Communications with the Radio There are four different methods available to set radio parameters and query the radio. They are: • Front Panel—The front panel is intended to serve as a convenient user interface for local radio management. Most, but not all, parameters and functions are accessible from the front panel. (See “Front Panel LCD Menu Descriptions” on Page 32.) • NMS (Network Management System)—The NMS is used via a terminal connected to the front panel CONSOLE Port.
3. When all of the characters have been entered, press ENTER again. The screen briefly displays Login Success and returns to the Login entry screen. You may now access any of the screens shown in Figure 15 with Administrator level privileges (the highest allowable user level). CONSOLE Method To login using a terminal connected to the front panel CONSOLE Port, follow the steps below. The default connection parameters are 9600 bps, 8 bits, no parity, 1 stop bit (96008N1). 1.
using the user command. See Page 86 for complete description of user command. NOTE: It is recommended that users log out when finished using the front panel navigation keys or console terminal. This can be done using the Logout screen on the radio, or the logout command from a console terminal as appropriate. If there is no key or terminal activity for 10 minutes, the radio automatically logs out and reverts to read-only status. 4.
4.7 STEP 6—Set TCP/IP Settings to Enable SNMP and/or Telnet Management (if required) • The unit IP address is factory configured with a unique address based on the last three digits of the radio’s serial number. • Use ip command (Page 63) to change the IP address, set netmask, gateway and IP Port as necessary. • In a protected radio, change the rdnt settings (Page 74) to match the user-assigned IP addresses. 4.8 STEP 7—Set User Configurable Fields Change only if required. Many items are user-configurable.
Step 1 LEDR Link Default Screen LEDR Link ENTER Step 2 Step 3 Username Admin Password ****** Menu Selection LEDR Link Logout LEDR Link Logged out LEDR Link Network IP Address 000.000.000.000 Text Enter (Note: Logout screens available only when logged in.) Display Only LEDR Link General LEDR Link IO Config LEDR Link Line Config LEDR Link Performance Number Enter Number Enter Number Enter Model Number LEDR 400F Serial Number xxxxxxxxxxxx Firmware Rev. x.x.
Hardware Rev. xxxxxxxx Display Only Mod/Data rate 32-QAM 768 kbps Menu Selection Line Code AMI 1 Menu Selection Severely Erred 0 sec Display Only Reframe 1 3 cons. FAS Pulse Shape 1 g.775 Menu Selection Menu Selection Cable Length 1 1-133 ft Menu Selection RESET G.821? NO Menu Selection Bit Error Rate < 1 x 10-6 Display Only Display Only—This description indicates the LCD menu item is for informational purposes only.
5.1 Front Panel LCD Menu Descriptions NOTE: These menu selections are listed in alphabetical order. CONSOLE Baud Rate 9600 This menu allows you to set or view the current data rate setting for the CONSOLE Port serial interface. Refer to Figure 33 on Page 127 for pinout information of this Port. See “OPTION 1: Uploading Firmware via the CONSOLE Port” on Page 94 for more information. For the NMS command-line equivalent, see “con” on Page 56.
Front Panel Backlight ENABLED Viewing Angle ~~ This screen provides control of the front panel LCD illumination. The LCD illumination may need to be enabled to view the LCD depending on ambient lighting conditions. This screen allows you to adjust the viewing angle (top to bottom) of the LCD screen. The angle may need to be adjusted to compensate for the radio mounting position and ambient lighting conditions. Use the keys to adjust the screen. Pressing saves the adjusted value as the default setting.
Severely Erred 0 Reset G.821? NO This screen shows the severely errored seconds of the radio link. The G.821 standard defines Severely Errored Seconds as a one second period that has a BER higher than 1x10-3. This screen allows the user to reset the G.821 performance monitoring screens. General Unit ID 000 This menu allows the Unit ID of the radio to be displayed or changed. The Unit ID allows an individual radio to be signaled for Orderwire use.
IO Configuration Clock Mode INTERNAL This screen is used to set or display the data clocking method. For synchronization purposes, several different clocking schemes can be used. See Table 10 on Page 23 for the combinations of radio bandwidth, data rates and modulation types available for subrate radios. Table 11 on Page 24 contains the same information for fullrate radios. For the NMS command-line equivalent, see “date” on Page 57.
Line Configuration Choose Line 1 LINE1 This screen is used to choose or display the line (1-4) that is selected. This selection will be active for all of the screens that follow in the Line Configuration menu and will be displayed in the upper right hand corner of each screen. For the NMS command-line equivalent, see “linename” on Page 67. Frame Struct 1 FAS ONLY This screen is used to set or display the span(s) frame structure. The allowable selections are shown in Table 13. Table 13.
Line Code AMI 1 This screen is used to set or display the linecode used by the radio. The available selections are AMI or HDB3. For the NMS command-line equivalent, see “linecode” on Page 66. Reframe 1 3 cons. FAS This screen is used to set or display the reframe criteria of the LEDR radio. The setting is based on the number of errors encountered. The available selections for T1 and E1 operation are listed in Table 14 below. Table 14.
Login LEDR LINK Login The login menus allows you to log in to the radio’s operating system and gain access to configuration and diagnostics functions permitted for your assigned access level. Username Admin The username menu is where you specify the user name assigned by the user access administrator. For the NMS command-line equivalent, see “login” on Page 68. Password ****** The password screen is where you specify the password associated with your user name to gain access to the login account.
Network IP Address 000.000.000.000 This menu allows changes to the radio’s IP address. The IP address is used for network connectivity. The IP address also allows new radio software to be downloaded over-the-air. For the NMS command-line equivalent, see “ip” on Page 63. Netmask 000.000.000.000 This menu allows the subnet mask to be viewed and changed. The subnet mask specifies which bits of the host IP address can be re-used for increased network addressing efficiency.
Orderwire Send ODW Alert This menu allows you to “ring” the Orderwire at a specified radio site. Refer to USING ORDERWIRE on Page 99 for instructions on using the Orderwire. For the NMS command-line equivalent, see “alert” on Page 51. Volume ~~~ This screen is used to set or display the Orderwire volume. Use the keys to adjust the volume level. Pressing saves the adjusted value as the default setting. ENTER For the NMS command-line equivalent, see “volume” on Page 88.
Power Out +30 dBm The Power Output display indicates the transmitter power output in dBm. (+30 dBm is equal to 1.0 watt; +20 dBm is 100 mW.) The power output level can be set from this display by pressing the key, and through use of the arrow keys, increase or decrease the power level. When the desired value is displayed, press the key to save the setting. ENTER ENTER For the NMS command-line equivalent, see “rfout” on Page 77.
NOTE: The associated radio IP address should be programmed to the IP address of the other radio connected to the protected switching chassis. The associated radio IP address is used by the redundant radio to share information between the units. This address is necessary for proper operation. The associated radio IP address does not affect IP routing and forwarding, SNMP, or Telnet.
Tx Key Enable This menu is used to enable (key) or disable (dekey) the transmitter or to verify that the radio is keyed and the transmitter is active. The radio is normally keyed and transmitting whenever power is applied. For the NMS command-line equivalent, see “txkey” on Page 86. Bandwidth Mod/Data rate 32-QAM 768 kbps This menu displays the bandwidth setting of the radio. The bandwidth is set at the factory and cannot be changed by the user.
6.2 Initial Connection to the CONSOLE Port NOTE: The default connection parameters for console operation are 9600 bps, 8 bits, no parity, 1 stop bit (96008N1). The console port is configured as DCE. 1. Connect a terminal to the front panel DB-9 connector labeled . 2. Open an ANSI terminal application on the terminal. (If using the Windows operating system, a HyperTerminal session can be started by selecting Programs>>Accessories>>HyperTerminal.) 3. Press ENTER a few times.
Table 15. NMS Commands MDS 05-3627A01, Rev. D Command Description Summary Details ? or help Displays the available NMS commands. May also be entered after any other command to obtain context sensitive help. Page 48 ais Echoes/enables/disables Alarm Indication Signal (AIS) generation and Remote Alarm Indication (RAI) detection, AIS and RAI Signal (RAIS) forwarding on given span(s). Page 49 alarm Provides control of alarm outputs and displays state of alarm inputs.
Table 15.
Table 15.
6.4 Command Detailed Descriptions Introduction The following commands are available through the CONSOLE port. These commands all require the Enter or Return key be pressed after the command. The following conventions are used to help describe the usage of the commands. Square brackets [ ] contain subcommands that may or may not be needed as part of the desired command. If there is more than one possible subcommand a vertical line | separates the commands within the square brackets.
ais Alarm Indication Signal FT1 Usage: ais [linelist] [-g ] [-f ] E1 FE1 This command enables or disables alarm signal generation [-g] and forwarding [-f] on specified E1/T1 interface lines. When generation is enabled, fault conditions within the link or at the line interface will cause the appropriate AIS/RAI signaling to occur. When forwarding is enabled, AIS/RAI signaling at the line interfaces will be detected and passed to the other end of the link.
in the full-rate LEDR radio models; however AIS and RAI forwarding are available. It may be desirable to have alarms generated (ais -g on) in full rate models, depending on the user's requirements as outlined in the next paragraph. Since the generation and forwarding operations require use of the Service Channel, the AIS/RAI response times are on the order of a few seconds. Generation and forwarding can be very helpful in correcting problems with the network when they arise.
Returns: alarm: alarm: alarm: alarm: alarm: alarm: alarm: Type ====== Input Input Input Input # = 1 2 3 4 Name ================ AlarmInput1 AlarmInput2 AlarmInput3 AlarmInput4 Active Level ====== closed closed closed closed Current Reading ======= open open open open Active Level ====== closed Current Reading ======= closed Active Level ====== closed Current Reading ======= open Command Example #2: alarm out 2 set closed Returns: alarm: alarm: alarm: alarm: Type ====== Output # = 2 Name ======
connected at some point to a radio’s Ethernet port, or to a common hub with a LEDR radio. In other words, the radio network can be configured for seamless integration of other IP-manageable devices by responding to ARP requests and/forwarding IP traffic directed to those devices. See the route command on Page 77 for information on other necessary configuration steps to allow for IP connectivity to LEDR radios and associated devices using the radio’s network-management channel.
Reference— -lp List available pseudo-random bit patterns (See Table 17 on Page 53 for options.) -le List available errors to inject (See Table 18 on Page 53 for options.) stats Display bert statistics Table 17.
Background information on bert command: The bit error-rate test command, bert, is used to evaluate the link between the LEDR data interface and the customer premises equipment (CPE). When used, the LEDR radio will send a test pattern out of the LEDR FT1/E1 Data Interface lines towards the CPE while simultaneously attempting to receive the same pattern back from the CPE.
This command briefly sounds the radio’s piezo buzzer for testing. It should be used only from the CONSOLE Port. Example Response: buzzer: Starting test buzzer: Test complete clkmode 530 Clock Mode (Subrate Radios Only) Usage: clkmode [] This command displays or sets the source of the radio’s transmit clock. For synchronization purposes, several different clocking schemes can be used.
NOTE: Firmware versions 2.3.1 and earlier, require that this parameter be properly configured for correct operation of the link. More recent firmware versions do not require that this item be manually configured. However, the clkmode command may still be used to determine which port is being used to drive the timing. Firmware Version 3.0.0 and Later– The clkmode command applies only to the EIA-530 interface.
This sends the configuration file to a TFTP server running on host 192.168.1.14 and stores it as a file called config.txt. date Date Usage: date [MM/DD/YYYY] This command sets or displays the date and time of the radio’s internal real-time clock. The real time clock operates from an internal lithium battery so it is running even if the radio has no DC power connected. The date format may also be set or displayed from this screen for one of three formats: U.S., European, or generic.
This command allows viewing the pending events (pending), suppressing the notification of particular events (filter), initializing events processing (init) and display of event descriptions (desc). To turn off logging (notification in the event log) for a particular event, the filter count value should be set to zero. Events 135-138 are remote alarm in [1-4], respectively, which reflects the event state of the alarm in [1-4] of the remote-located radio at the other end of the RF link.
This command displays corrected bytes and uncorrectable FEC block errors. Example Response: fec: 1812992 Correctable Bytes fec: 2 Uncorrectable Blocks Frequency of TX & RX Channel freq Usage: freq [] [] [] This command sets or displays the transmit and receive frequency.
Table 19 shows a list of line mode values for T1 interfaces and Table 20 for E1 interfaces. Table 19. T1 Frame’s Line Mode Values Value Mode 0 FT only (default) 1 ESF 2 ESF + PRM 3 SF 4 SF + JYEL 5 ESF + CRC 6 ESF + CRC +PRM Table 20. E1 Frame’s Line Mode Values Value Mode 0 FAS only (default) 1 FAS + BSLIP 2 FAS + CRC 3 FAS + CRC + BSLIP 4 FAS + CAS 5 FAS + CAS + BSLIP 6 FAS + CRC + CAS 7 FAS + CRC + CAS + BSLIP 8 Raw, unframed, transparent mode.
This command sets or displays the network group in which the radio is operating. Example Response:group: 1 In a typical system, all the radios would operate in the same group, allowing the flow of network-management and orderwire activity between radios and from one radio link to any other in the system. At a repeater site, all radios must be set to the same “group number” (and not group zero) for this flow of information to take place.
This command is used to set or display the bit-pattern used in the idle timeslots. Some equipment requires a particular pattern. To set the bits to all ones, use the command idlepat ff. To set the bits to a zero followed by seven ones, use the command idlepat 7f. This command does not apply to subrate models. Argument Definitions: linelist—Represents a list of line interfaces.
Example Response: interface {Line}: e1 NOTE: 1E1 through 4E1 data rates are not supported when using the EIA-530 interface. The maximum EIA-530 data rate is 768 kbps. interleave Interleave Usage: interleave [1-12] This command is used to set or display the interleave depth. The depth range is 1–12 with settable values of 1, 2, 3, 4, 6 and 12. Default setting for Subrate is 2, Default setting for Fullrate is 12.
Subcommands: address [x.x.x.x] netmask [x.x.x.x] gateway [x.x.x.x] IP port [ETH|AIR] This command sets or displays the Internet Protocol (IP) settings for the LEDR radio. The subcommands allow you to set the IP address, IP netmask, IP gateway, or IP port. The port setting determines whether IP communication to and from a particular radio occurs over the radio link or via a PC (or other networked device, such as a router) directly connected to the radio’s ETHERNET port.
Returns: led: Alarm LED ON line FT1 E1 FE1 FT1 Attributes of lines (cables) used with the radio’s T1 or E1 Interface. This command is used to set or display the internal pulse template selection used by the LEDR interface to compensate for signal distortion created by various lengths and types of interface cables. The [linelist] variable represents a list of line interfaces.
Command Example: LEDR> line Returns: line {LINE1} {cable}: ITU-T G.703 120 Ω Twisted Pair {spec}: i.431 line {LINE2} {cable}: ITU-T G.703 120 Ω Twisted Pair {spec}: g.775 line {LINE3} {cable}: ITU-T G.703 120 Ω Twisted Pair {spec}: g.775 line {LINE4} {cable}: ITU-T G.703 120 Ω Twisted Pair {spec}: g.775 Line Code linecode FT1 E1 FE1 Usage: linecode [linelist] [B8ZS|AMI|HDB3] This command sets or displays the radio’s linecode (T1: B8ZS or AMI; E1: HDB3 or AMI).
NOTE: FE1/FT1 always use Span A. Figure 16 shows the example pictorially. There are no restrictions of which lines are mapped to which data channel spans. Invisible place holder LEDR LINE (RJ-45 JACK) E1/T1 SPAN 1 Span A 2 Span B 3 Span C 4 Span D Figure 16. Example of Linemapping NOTE: The cluster of four RJ-45 jacks on the rear of the radio is coded from left to right as 1, 2, 3 and 4 as viewed from the outside of the chassis.
Usage: log [subcommand] [] Subcommands: view [critical|major|minor|inform] clear send [filename] [hostIP] This command is used to display and manage the event log file. Without a subcommand, the complete log file will be displayed one page at a time. If you are interested in less than the full report, use one of the following subcommands: view—Sets or displays the types of events to be displayed. clear—Resets the event log and purges all events from memory.
NOTE: Only one user can be logged in through the CONSOLE Port at a time. Any new login will close the previous user/account. Other users can login simultaneously through the ETHERNET Port or front panel. logout Logout of the LEDR radio Usage: logout This command is used to log out a user. Subcommands: loopback Loopback Functions The loopback command is used to set or display the loopback mode that can be used for diagnostic purposes.
remote—EIA-530 Operation: Instructs the radio at the other end of the link to “echo” all of the data it receives. This is an effective way of testing the entire communications system, including the transmission path over the air. (In the event of a communications failure with the remote radio, the message “Remote Error” is displayed, and no loopback mode is selected. T1/E1 Operation: The remote subcommand mimics the ior subcommand described below. rf—Enables an RF loopback mode.
linelist—Represents a list of local line interfaces. It can consist of a single line number or line name, a comma-separated list of line numbers or line names, a range of line numbers (i.e., 1–4) or, if linelist is not given, all lines. See Table 19 on Page 59 for a list of line numbers. on|off—To turn the loopback feature on or off. -u —Allows setting of the inband|outband loopback upcode. The inband code consists of 1-7 bits, binary format.
Table 25. Modem Command Arguments for EIA-530 & FT1 (Subrate) Radios1 DATA RATES Modulation Type 64 kbps 128 kbps 256 kbps 384 kbps 512 kbps 768 kbps QPSK A1 A2 A3 — — — 16 QAM B1 B2 B3 B4 B5 B6 32 QAM — — — — — C6 1. The available selections depend on the radio’s factory programmed bandwidth. See Table 10 on Page 23 for the allowable combinations of bandwidth, data rates and modulation types.
This command is used to change the password for the user currently logged in. A maximum of 8 characters is allowed, and it is case sensitive. ping Ping IP Address (Send ICMP Echo Request) Usage: ping [ip address] [reps] This command is used to verify the accessibility of any IP address on the network to determine availability and measure network response time. This command requires proper IP Routing and IP connectivity.
rdnt Redundant (Protected Operation) The rdnt command is used to manage protected operation of the LEDR radio and display operating status. Usage: rdnt [subcommand] [arguments] Subcommands: active default hitless ip mode nsd status swxcvr temp mode The following subcommands are divided into two groups: read only and read and set. Read Only: active—Shows whether the currently selected transmitter is active or inactive.
NOTE: The associated radio (sibling) IP address should be programmed to the IP address of the other radio connected to the Protected Switch Chassis. The associated radio IP address is used by the redundant radio to share information between the units. This address is necessary for warm-standby switching. The associated radio IP address parameters do not affect IP routing and forwarding, SNMP, or Telnet. The rdnt swxcvr will not operate correctly if this parameter is not set correctly.
For Fractional-T1: 2of4 2of5 2of6 – 2 out of 4 Fbit errors (default) – 2 out of 5 Fbit errors – 2 out of 6 Fbit errors For E1: CFAS – Consecutive FAS errors (default) CRC – 915 CRC (rx framer only) reprogram Load Radio Firmware Into LEDR Radio Usage: reprogram [subcommand] [] Subcommands:network [filename] [hostIP] status This write command loads the radio application software (firmware) into the LEDR chassis from an external resource using Trivial File Transfer Protocol (TFTP).
Example Response: Region 0 Index 0, Rfout = 18 dbm, Gain = 17 Index 1, Rfout = 20 dbm, Gain = 28 Index 2, Rfout = 22 dbm, Gain = 47 Index 3, Rfout = 25 dbm, Gain = 79 Index 4, Rfout = 27 dbm, Gain = 110 Index 5, Rfout = 30 dbm, Gain = 170 Index 6, Rfout = 32 dbm, Gain = 210 rfout RF Output Level Measurement Usage: rfout This command displays the transmitter RF power output in dBm. See “Watts-dBm-Volts Conversion” on Page 129.
gw is port a gateway IP address is specified as either “ETH” or “AIR” delete [address] mask [netmask] [gw]—Delete gw a route is a gateway IP address stored—Display flush—Deletes all user-added stored routes all stored routes destination—Specifies the host to send command Command Arguments: mask—Where the mask keyword is present, the next parameter is interpreted as the netmask parameter. netmask—Specifies a sub-net mask value to be associated with this route entry.
Background on this command: The LEDR Series of radios can be configured to pass IP management traffic across the radio’s raw service channel. A process called “network self-discovery” automatically configures IP routes between all radios in a network (provided that the group command has been correctly configured throughout the system. (See “group” on Page 60). Also, see the arp command on Page 51.
This command displays the received signal strength. The measurement is in dBm. Therefore, an RSSI of –80 dBm is stronger than a –100 dBm signal. There may be a time delay between moving the antenna and updating of the RSSI display. Be sure to allow adequate time between antenna movements and observations. rssical RSSI Calibration Usage: rssical This command starts the RSSI Calibration Sequence. See rfocal command on Page 76 for conditions.
sernum Serial Number of Radio Usage: sernum This command displays the serial number of the radio. The number displayed with this command matches the serial number printed on the serial number sticker on the radio chassis. snmpcomm SNMP Community Names Usage: [][] This command is used to set or display SNMP community names. Community names are passwords that are required to match at the SNMP management station and each radio or other SNMP agent.
status {Clock Mode}:internal status {RSSI}:–78 dBm status {SNR}:28 dB status {Rx Lock}:Locked status {Tx RF Out}:30 dBm status {TxKey}: Keyed status {Temp}:37 Degrees C status {IP Address}: 192.168.11.49 status {IP Netmask}: 255.255.0.0 status {IP Gateway}: 0.0.0.0 svch Service Channel Settings Usage: svch [subcommand] [] Subcommands: baud [300|1200|2400|4800|9600 csize [5–8] parity [none|even|odd] stop [0–2] This command sets or displays the Service Channel settings.
NOTE: Performing a receiver or transmitter PLL test during normal link operation will take the link down for the duration of the test and the re-synchronization interval. The internal self tests are listed in Table 26. Table 26.
15minses—Number of severely errored seconds within the last 15 min- utes. 24hres—Number of errored seconds within the last 24 hours. 24hrses—Number time of severely errored seconds within the last 24 hours. Time of Internal Clock Usage: time [HH:MM[:SS] This command displays or sets the time of the radio’s internal real-time clock. The radio’s real time clock operates from an internal lithium battery so it is running even if the radio has no DC power connected.
If the timeslots are rearranged such that M is to the “left” of timeslot 16, and N to the “right,” then the timeslot numbers at the other end of the link must agree (M and N). They may be re-positioned within their part of the E1 frame (to the left or right of TS16) but may not be moved to the other side. The slotlist variable is a list of timeslots and can be a single slot number, comma separated list of slot numbers, or a range of slot numbers (i.e., 2-8).
This command is used to display continuously updated readings of: RSSI, radio temperature, RF output, signal-to-noise ratio, and FEC errors (corrected and uncorrectable). The display can be stopped by pressing Control-C on the terminal. If the trend command is used by itself or with all (trend all), all associated parameters will be reported. More than one argument can be used to display several selected items in the desired order. NOTE: This command is not available from a Telnet session.
User permission (perm) may be set to: read (r), write (w), network (n) or administrator (a). The privileges granted by each level are as follows: • Read (r) is the lowest level of user access and allows radio information to be viewed only. Changes to radio settings are not allowed. • Write (w) allows most, but not all radio settings to be changed. • Network (n) allows everything permitted by lower levels, and also allows changes to the radio’s IP configuration.
ver: Scripts Ver1.44 ver: Option Ver1.56 ver: ver: Image 2 (Active) ver: Region Expected Upgrade ver: Firmware 2.4.3 ver: DSP 1.1.0 ver: FPGA Ver1.22 ver: Scripts Ver1.44 ver: Option Ver1.56 ver {Active code}: compiled Aug 15 2000 08:47:46 Note: Blank lines following “Ver:” are spaces used as vertical separations between data groups. volume Volume of Orderwire Earpiece Usage: volume [] This command sets or displays the orderwire handset volume.
You must log into the LEDR radio as a user with “Administrator” privileges to execute these commands. If you are using a terminal program connected to the radio, send one command sequence at a time to the radio with a 5 ms delay between each line. Table 27. Commands to Disable E1 Port Alarms MDS 05-3627A01, Rev.
To restore the factory default settings to all of the E1 ports, issue the commands shown in Table 28. Table 28.
Radio-Specific data is: • • • • • • • Frequencies Target Power Thresholds Calibration Data IP Address IP Routing Table Network Settings Standard radio data are the configuration parameters that are common in all LEDR radios. Both types of data can be uploaded and downloaded between the radio and a PC. It is up to the user to decide whether to download both types or just the standard (core) data. Once the data is on a PC, the file can be edited off-line, for example, the configuration data, if desired.
To download both the standard and radio-specific configuration data from a file on the PC (filename.txt) to the radio enter the following command: LEDR> config getall [filename.txt] [1.2.3.4 ] Ideally, the process of updating a system would go like this: 1. Upload the current configuration data from each radio to a specific file on your PC. At radio 1 CONSOLE Port enter: config send radio_1.txt 1.2.3.4 At radio 2 CONSOLE Port enter: config send radio_2.txt 1.2.3.4 (etc.) 2.
8.0 UPGRADING LEDR FIRMWARE 8.1 Introduction The LEDR radio’s firmware can be upgraded with new software releases that may be issued from time-to-time by Microwave Data Systems. To support firmware upgrades while the radio is in use, the LEDR radio contains two complete copies of its firmware. Once the inactive version is replaced, the radio can be rebooted using the code in the new firmware.
8.2 OPTION 1: Uploading Firmware via the CONSOLE Port This method of upgrading the firmware is well suited to field service personnel that carry a laptop PC to field installation. Any computer running the Windows operating system is suitable. Figure 17 shows the basic arrangement. Invisible place holder WINDOWS PC FLASH UTILITY LEDR RADIO UNIT 9-PIN SERIAL CABLE COM1, 2, ETC. (DTE) CONSOLE PORT (DCE) INITIATE UPLOAD FROM HERE Figure 17.
boot: Image 1 is Active or, boot: Image 2 is Active 2. The new firmware is downloaded into the inactive image. Therefore, if the radio responded Image 1 is Active, enter “image verify” command, iverify 2, otherwise, enter iverify 1. The radio will respond indicating whether or not the image has been verified as being a valid file, it will not determine if the contents are complementary to the other firmware image. If the image does not verify, try downloading the firmware again into the radio.
Invisible place holder LOCAL WINDOWS PC W/FIRMWARE FILES TFTP SERVER & TELNET ETHERNET PORT BLE CROSS-OVER CA ETHERNET PORT IP ADDRESS: 192.168.X.B INITIATE UPLOAD FROM HERE LEDR> REPROGRAM NETWORK FILENAME.MPK 192.168.X.B (CHECK STATUS: LEDR> REPROGRAM STATUS) LEDR RADIO UNIT IP ADDRESS: 192.168.X.W Figure 18. Direct connection through the LEDR ETHERNET Port Setup 1. Connect the PC’s Ethernet interface to the radio’s ETHERNET Port using a Category 5 Ethernet cross-over cable. 2.
6. If desired, the status of the transfer during reprogramming may be displayed by typing reprogram status. 7. The TFTP Server and radio will notify you when the programming is complete. Verification and Reboot 1. To verify the integrity of the new firmware enter boot to determine which image is currently active.
Invisible place holder REMOTE PC W/FIRMWARE FILES HUB/LAN/WAN/MAN TCP/IP TFTP SERVER ETHERNET PORT ETHERNET PORT IP ADDRESS: 192.168.X.B LOCAL WINDOWS PC TERM PROG. CONSOLE PORT (DCE) 9-PIN SERIAL CABLE LEDR RADIO UNIT IP ADDRESS: 192.168.X.W COM1, 2, ETC. (DTE) INITIATE UPLOAD FROM HERE LEDR> REPROGRAM NETWORK FILENAME.MPK 192.168.X.B (CHECK STATUS: LEDR> REPROGRAM STATUS) Figure 19. Uploading firmware from a remote server via Ethernet Download Procedure 1.
Verification and Reboot When the download is complete, verify the firmware image and reboot the radio as described under Verification and Reboot in Paragraph See “Verification and Reboot” on Page 94 for the procedure. 9.0 USING ORDERWIRE 9.1 Introduction A handset may be plugged into the front panel of the LEDR radio to allow voice communications between radio sites (see Figure 20). This can be especially useful during setup and maintenance activities.
9.3 Operation 1. Plug the handset into the front panel jack labeled . (Figure 32 on Page 127 provides pinout details for this connector.) 2. Press or at the menu’s top level until Orderwire appears on to move to the lower levels of the menu. the LCD display. Press ENTER 3. To call a specific radio station, enter the Unit ID number for the station to be called. (At this point, an alert signal (“ring”) will be sent to earpiece of the handset connected to the “called” station. 4.
9.4 Related NMS Commands The orderwire can be configured by the NMS commands or through the front panel. The earpiece volume is more easily set by the front panel controls as the level is dependent on personal preference.
When you set up a system, you must be careful to avoid an infinite loop. If echo is enabled, then every character that enters the Service Channel port will be echoed back out the port. When echo is disabled then data that comes in the Service Channel port is not sent back out the port. Trouble may arise if the device that is connected to the Service Channel also echoes the data it sends.
11.0 PROTECTED CONFIGURATION 11.1 Introduction The LEDR radio can be supplied in a protected (also called redundant or “1+1”) configuration (Figure 21). The protected version is designed to perform automatic switchover to a second radio in the event of a failure in the primary unit. Protected operation is important for many mission-critical or revenue producing links.
The front panel of the Protected Switch Chassis (PSC) has only two LEDs and an RJ-11 jack for an orderwire handset. The LEDs indicate by light and an arrow outline which LEDR chassis is active. It is assumed the two LEDR chassis will be mounted above and below the PSC with Unit A on top and Unit B on the bottom. 11.2 Protected Operation During normal operation, one radio path is selected and the RF and interface switches are set to service that path.
Receiver Failure Both receivers are fed via an RF splitter from the antenna port. Each RF path is buffered and monitored for receive signal integrity for uncorrectable bit-errors. If the “active” receive circuitry fails, uncorrectable bit-errors will be detected. The modem receive switch will first determine that the “standby” receive path is operational (no uncorrectable bit errors) and will switch accordingly. 11.
RxA The RXA (Receive—Radio A) connector is a N-type coaxial connector. It connects to the RX port on the rear panel of Radio A via a short coaxial cable. RxB Same as RXA, but for Radio B. Antenna The ANTENNA connector is a N-type coaxial connector. It serves as the connection point for the station antenna. TxA The TXA (transmit, radio A) connector is a N-type coaxial connector. It connects to the TX port on the rear panel of Radio A via a short coaxial cable. TxB Same as TXA, but for Radio B.
EIA-530-A This DB-25 connector provides a connection point for customer-supplied EIA-530 data equipment. Note: This port is not operational in fullrate models. Service Channel In a protected configuration, this DB-9 connector becomes the Service Channel connection for both LEDR radios. (In the protected radio configuration, the Service Channel connectors on the radios are non-functional.) For detailed pin information, see “Service Channel—Rear Panel” on Page 129. 11.
DO NOT USE IN PROTECTED CONFIG. RADIO A G.
• Radio Operation • General • Redundant Specific • Data Interface • Subrate—Fractional-T1 • Fullrate—E1/T1 Redundant Specific Parameters There are several parameters that must be set to enable proper operation of a protected station. These are all covered under the rdnt command found on Page 74. Sample Redundant Configuration Session The following is a example of a session used to configure a LEDR radio to serve in a protected system.
Transmit Clock Selection (Subrate Models Only) The transmit clock selection must be addressed for every radio in a subrate radio system installation. The single most important consideration is that there be only one master clock in a subrate radio network. The master clock can originate from the radio or from the Customer Premises Equipment (CPE). The radio is capable of several different clocking modes. Refer to Figure 24 on Page 110 for typical system clocking methods.
12.0 SPACE DIVERSITY OPERATION 12.1 Introduction Space diversity operation is an effective mechanism of increasing a radio link’s resilience to transmission impairments such as multipath fading or frequency selective fading. In difficult transmission environments such as over highly reflective and moving water paths, or in arid environments where atmospheric ducting occurs, space diversity is the most effective way of maintaining a continuous radio link.
12.4 Inter-Unit Cabling for Space Diversity Stations The RF cabling for space diversity stations depends on the location of the duplexers. The block diagram in Figure 25 shows the RF connections in a typical system with two external duplexers. LEDR UNIT A RX RX TX TX TX TX RX RX DUPLEXER A ANT SWITCH LEDR UNIT B DUPLEXER B ANT Figure 25.
The inter-unit cabling for a space diversity system with internal duplexers is shown in Figure 27. DO NOT USE IN PROTECTED CONFIG. RADIO A G.
When ordering parts from the factory, always give the complete model number of the radio as found on the serial number label on the chassis. Contact information can be found on Page 138 of this guide. Table 29. Field Replaceable Units for LEDR Radios Item Model MDS Part Number Transceiver’s SRAM Power Back-up Battery All Models 27-3109A01 Protected Switch Chassis (Complete unit) All Models Consult factory Duplexer, if equipped.
Table 30. Accessory Items for LEDR Radios (Continued) Item Description MDS Part Number SNMPc™ Network Management Manager SNMP Management Software to access the LEDR embedded SNMP agent, allowing management of the LEDR radio network and any interconnected SNMP enabled peripherals. 03-3530A02 For Windows 98 or NT O/S. Orderwire Handset Voice handset and cord with RJ-11 modular plug. 12-1307A03 Orderwire Handset Kit Voice handset with cord (RJ-11 modular plug), hanger and mounting bracket.
14.3 Configurable Parameters The following performance specifications of the T1 fractional interface are adjustable by the user. All of these parameters are manageable locally, or over the air via SNMP network management. (Refer to the SNMP Handbook, P/N 05-3532A01 for more information.) Timeslots and Framing Twelve DS0 timeslots are permitted. In FT1, the timeslot selection is arbitrary. In FE1, timeslot 0 is always sent and the remaining timeslots are arbitrary with the exception of timeslot 16.
Diagnostics The T1 line at each end of the link may be tested using a variety of bit patterns. In normal operation, statistics are stored for any errors occurring at the line interface, such as framing errors, bipolar violations, and CRC errors. Data may be looped back at the local port, through the T1 option only, and at the remote unit. Further, the unit will respond to in-band (SF) and data link (ESF) loopback codes at the local port.
5. Carefully set the optional board into place, making sure to align the mounting holes with the threaded standoffs on the main PCB. (The Interface Board’s rear panel connector should align with the rectangular cutout at the radio’s rear panel, and the rear edge of the option board should be parallel to the main PC board.) 6. Look under the right edge of the Interface board to ensure that J912 is aligned with the mating connector on the option board.
Invisible place holder REAR PANEL OF LEDR RADIO PC Board Clamp (Some Versions) Installation Area for Interface Board J913 J912 Figure 29. View of Radio PC Board Showing Installation Details for FT1/FE1 Interface Board MDS 05-3627A01, Rev.
15.0 INCREASE BANDWIDTH BY CHANGING TRANSMITTER AND RECEIVER FILTERS 15.1 Introduction It is possible for qualified service personnel to upgrade LEDR Series radios in the field to increase the radios RF bandwidth. Listed in Table 31 are five upgrade kits. Each kit consists of three RF filters; one is used in the transmitter section and two are used in the receiver section. In addition, there is a unique software key that will allow the data circuitry to handle the higher data bandwidth.
2. Remove the top cover of the radio (four Phillips head screws). 3. Remove the Transmitter and Receiver section’s RF shields (Figure 30). It will be necessary to unplug the ribbon cables that cross over the shields—record their locations as you remove them. 4. Locate and remove Filter FL700 from the transmitter section. In its place, install the replacement filter furnished with the upgrade kit. Ensure that the new filter is installed in the same orientation as the original unit.
15.3 Software Commands To activate the new filter bandwidth, it is necessary to enter an authorization key provided by Microwave Data Systems. This key is based upon the radio serial number and will authorize the new bandwidth of the radio. Contact the factory if you do not already have an authorization number. 1. Initiate a NMS terminal session with the LEDR radio. (Refer to Page 26 for login details.) 2.
You can perform an over-the-air BER test on the bench or in the field. In this case, attach a separate piece of BER test equipment and feed it into one or more of the T1/E1 ports. At the other end of the link, you use another BER test box, or attach a loopback plug to the CPE data I/O port. This tests the quality of the radio link itself with regard to the user payload data. Such a bench, or over-the-air, test does not use the LEDR bert command.
Transmitter Transmit Power: +30 dBm (1 watt) at antenna port Output Control Range: 0 dB to –10 dB Frequency Stability: 1.5 ppm Spurious Outputs: < –60 dBc 400S < –60 dBc 900S < –60 dBm 1400S Receiver Sensitivity (for 10-6 BER): Bandwidth 25 kHz 50 kHz 100 kHz 200 kHz Residual BER: < 1 x 10-10 Dynamic Range: > 65 dB Data Rate 64 kbps 128 kbps 256 kbps 768 kbps Sensitivity –101 dBm –98 dBm –95 dBm –92 dBm Interfaces Data: EIA-530, G.
Environmental: ETS 300 019, Class 3.2 EMC: ETS 300 385 Safety: CE Mark 17.2 Specifications— Models: LEDR 400F, 900F, 1400F General Frequency Ranges: 330–512 MHz (LEDR 400F) 800–960 MHz (LEDR 900F) 1350–1535 MHz (LEDR 1400F) RF Occupied Bandwidth: 500 kHz, 1 MHz & 2 MHz User Data Rates: 1 x E1 (2.048 Mbps) 2 x E1 (4.096 Mbps) 4 x E1 (8.
Interfaces Data: G.
17.5 Accessories • 120/240 Vac 50/60 Hz Power Supply (24 Vdc Output) • Orderwire Handset • Other items listed in Table 30 on Page 114 NOTE: The factory reserves the right to make changes to this specification without advance notice or obligation to any person. 17.
Ethernet—Rear Panel Invisible place holder Pin RJ-45 12345678 10Base-T Signal Direction 1 Ethernet Transmit High Output 2 Ethernet Transmit Low Output 3 Ethernet Receive High Input 4 No Connection — 5 No Connection — 6 Ethernet Receive Low Input 7 No Connection — 8 No Connection — Figure 34. Ethernet Connector (RJ-45) EIA-530-A Data—Rear Panel Invisible place holder Signal D esignation S ource DCE D TE R eturn Test M ode Ext.
Service Channel—Rear Panel Invisible place holder TXD (DATA OUT) RXD (DATA IN) DTR (OUT) 4 3 2 5 GROUND NC 9 8 1 6 7 DCD (IN) DSR (IN) CTS (IN) DTE RTS (OUT) Figure 37. Service Channel Connector Pinout (DB-9 Male) Alarm—Rear Panel Invisible place holder ALARM IN 3 ALARM IN 2 ALARM IN 4 5 GROUND ALARM OUT 4 9 4 3 2 8 7 1 6 ALARM IN 1 ALARM OUT 1 ALARM OUT 3 ALARM OUT 2 Invisible place holder Figure 38. Alarm Connector DB-9 Female Pinout (See See “Alarm I/O” on Page 21 for parameters.
Invisible place holder Table 32. dBm-Volts-Watts Conversion Chart dBm V Po dBm V Po dBm mV +53 +50 +49 +48 +47 +46 +45 +44 +43 +42 +41 +40 +39 +38 +37 +36 +35 +34 +33 +32 +31 +30 +29 +28 +27 +26 +25 +24 +23 +22 +21 +20 +19 +18 +17 +16 +15 +14 +13 +12 +11 +10 +9 +8 +7 +6 +5 +4 +3 +2 +1 200W 100W 80W 64W 50W 40W 32W 25W 20W 16W 12.5W 10W 8W 6.4W 5W 4W 3.2W 2.5W 2W 1.6W 1.25W 1.0W 800mW 640mW 500mW 400mW 320mW 250mW 200mW 160mW 125mW 100mW 80mW 64mW 50mW 40mW 32mW 25mW 20mW 16mW 12.5mW 10mW 8mW 6.
NOTE: The event codes listed here are available on radios equipped with the optional FT1 Interface Board. Standard “S” Series radios will display fewer codes. Table 33.
Table 33. Event Codes (Continued) 132 ID EVENT NAME DESCRIPTION DEFAULT LED SNMP TRAP LEVEL 23 DEMOD_AGC_RSSI Demodulator Automatic Gain Controlled RSSI too low NONE MINOR 24 DEMOD_FEC_RECOVER FEC circuitry has detected and corrected one or more errors NONE MINOR 25 DEMOD_FEC_UNRECOVER FEC circuitry has detected one or more uncorrectable errors NONE MINOR 26 DEMOD_MULTIPATH Excessive multipath distortion detected NONE MINOR 27 DEMOD_ACQUISITION Demodulator lost sync.
Table 33.
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Table 33.
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Table 33. Event Codes (Continued) ID EVENT NAME DESCRIPTION DEFAULT LED SNMP TRAP LEVEL 130 IF_SYNTH_LOCK Intermediate Frequency (IF) synthesizer out of lock TXALARM RXALARM CRITICAL 131 OPT_FPGA_LOAD Option Card Field Programmable Gate Array loading error NONE INFORM 132 USER_RDNT_SWITCH User-initiated switchover has occurred.
19.2 FACTORY REPAIRS Component level repair of radio equipment is not recommended in the field. Many components are installed using surface mount technology, which requires specialized training and equipment for proper servicing. For this reason, the equipment should be returned to the factory for any PC board repairs. The factory is best equipped to diagnose, repair and align your radio to its proper operating specifications.
140 LEDR Series I/O Guide MDS 05-3627A01, Rev.
GLOSSARY AIS—Alarm Indication Signal. Indicates all ones are being sent or received. AMI—Alternate Mark Inversion. A bipolar format where consecutive marks (ones) have the polarity inverted. Spaces (ones) are represented by zero volts. This technique prevents long sequences of positive or negative voltages. Analog—Signals with a continuously varying amplitude, such as the human voice. BERT—Bit-error rate test.
Fade Margin—The maximum tolerable reduction in received signal strength which still provides an acceptable signal quality. This compensates for reduced signal strength due to multipath, slight antenna movement or changing atmospheric losses. Expressed in decibels. fas—Frame Alignment Sequence. FEC—Forward Error Correction. Extra data is added to the transmitted signal to allow for detection and correction of some transmission errors.
Protected Operation—Refers to the practice of providing redundant transmit and receive signal paths through the radio (antenna to customer payload interface) so that no single point of failure in a single radio will interrupt the link. This feature is also referred to as 1+1 Operation and is usually provided by operating the system using Hot Standby. TFTP—Trivial File Transfer Protocol. A standard network protocol used to send and receive files between two devices.
G-4 LEDR Series Installation & Operation Guide MDS 05-3627A01, Rev.
QUICK START GUIDE Continued from the inside front cover. 7. Set TCP/IP settings to enable SNMP and/or Telnet Network Management (If required) • The unit IP address are factory configured with a unique address based on the last three digits of the unit serial number. • Use IP command to change the IP address, set netmask, gateway and IP Port as necessary. In a protected radio, change the RDNT settings to match the user-assigned IP addresses. 8.
Microwave Data Systems Inc. 175 Science Parkway Rochester, NY 14620 General Business: +1 585 242-9600 FAX: +1 585 242-9620 Web: www.microwavedata.com A product of Microwave Data Systems Inc.
