5. If constant interference is present in a particular frequency zone, it may be necessary to “lock out” that zone from the radio’s hopping pattern. The radio includes built-in tools to help users do this. Refer to the discussion of the SKIP command (Page 49) for more information. In the USA, a maximum of four zones may be skipped, per FCC rules. Check the regulatory requirements for your region. 6. Interference can also come from out-of-band RF sources such as paging systems.
10.0 PROGRAMMING REFERENCE All programming and control of the transceiver is performed through a PC terminal connected to the radio or the Evaluation Board DIAG connector. There are no manual adjustments or jumper settings used for configuration. This section explains how to establish terminal communication, and provides a complete list of user commands. 10.1 Programming Methods Terminal Interface Mode A PC may be used by operating it in a basic terminal mode (e.g.
Entering Commands The proper procedure for entering commands is to type the command, followed by an ENTER keystroke. For programming commands, the command is followed by SPACE , the appropriate information or values, and then ENTER . Table 11. Network Configuration—Master Station COMMAND DESCRIPTION BAND [abc] Details, page 41 Selects which of three frequency ranges the transceiver will operate in. BUFF [ON, OFF] Details, page 42 ON = Seamless data OFF = Fast byte throughput.
Table 13. Operational Configuration—Set/Program Command Description ADDR [1–65000] Details, page 40 Program network address AMASK [0000 0000–FFFF FFFF] Details, page 41 Sets alarm response. ASENSE [HI/LO] Details, page 41 Sense of the radio’s alarm output in the EIA-232 mode. Default: Alarm present = HI. BAND [abc] Details, page 41 Selects which of three frequency ranges the transceiver will operate in.
Table 13. Operational Configuration—Set/Program (Continued) Command Description RTU [ON, OFF, 0-80] Details, page 48 Enable or Disable unit’s built-in RTU simulator. Default is OFF. Set RTU address between zero and 80. SLEEP [ON, OFF] Details, page 50 Enable or Disable the radio’s Sleep mode function. UNIT [10000–65000] Details, page 51 Unit address used for network-wide diagnostics. (Unique within associated network.
Table 14. Operating Status—Display Only (Continued) Command Description CTS Details page 43 CTS delay in milliseconds (0–255 ms) CTSHOLD Details page 43 “Hold time” that CTS is present following last character from DATA port. DEVICE Details page 43 Device behavior HOPTIME Details page 44 Hop-time value in milliseconds (ms).
Table 14. Operating Status—Display Only (Continued) Command Description RXTOT Details page 48 The amount of time (in seconds) to wait before issuing a time-out alarm. RTU Details page 48 RTU simulator’s operational status (ON/OFF) SAF Details page 49 Store-and-forward mode status in this unit.
Table 15. Diagnostic and Test Functions Command Description KEY Details, page 45 Enables the transmitter test. (Radio must be in Setup mode.) DKEY Details, page 44 Turns off the transmitter test. (Radio must be in Setup mode.) TX [xxxx] Details, page 50 Set/display transmit test frequency. (Radio must be in Setup mode.) RX [xxxx] Details, page 48 Set/display receive test frequency. (Radio must be in Setup mode.) SETUP Details, page 49 Enables Setup mode. Times out after 10 minutes.
AMASK [0000 0000–FFFF FFFF] This command sets the alarm bits that cause the alarm output signal to be triggered. The PWR LED will still flash for all alarms, but the alarm output signal will only be activated for those alarms that have the corresponding mask bit set. The hex value for the mask aligns directly with the hex value for the ALARM command. The default is FFFF FFFF. Through proper use of the AMASK command, it is possible to tailor the alarm response of the radio.
NOTE: 7N1, 8O2, and 8E2 are invalid communication settings and are not supported by the transceiver. BUFF [ON, OFF] This command sets or displays the received data handling mode of the radio. The command parameter is either ON or OFF. (The default is OFF.) The setting of this parameter affects the timing of received data sent out the DATA connector. Data transmitted over the air by the radio is unaffected by the BUFF setting.
CTS [0–255] The CTS (clear-to-send) command sets or displays the timer value associated with the CTS line response. The command parameter ranges from 0 to 255 milliseconds. For DCE operation, the timer specifies how long to wait after the RTS line goes high before asserting the CTS line. A timer value of zero means that the CTS line will be asserted immediately following the assertion of RTS.
The following DLINK baud rates selections are allowed: • 1200 • 4800 • 9600 • 38400 • 57600 • 115200 • 19200 (default) Example: DLINK 4800 sets the RJ-11 DIAG port to operate at 4800 bps when diagnostics is “closed”. This setting will not affect the port’s autobaud operation. Use only of DLINK ON, will enable the use 19200 or the most recently programmed value. The default is DLINK 19200 and DLINK ON. NOTE: The same baud rate must be entered into the InSite Equipment List’s BAUD field.
Changes to the HOPTIME setting may only be made at the master radio. (This is because the Master radio establishes the hop-time setting for the entire network.) At remote radios, the hop-time setting may be read when the radio is in synchronization with the master, but it may not be changed. INIT The INIT command is used to reset the radio’s operating parameters to the factory defaults listed in Table 16 on Page 46.
OWM [xxxxx] The OWM command sets or displays an optional owner’s message, such as the system name. The entry can contain up to 30 characters. OWN [xxxxx] The OWN command sets or displays an optional owner’s name, such as the site name. The entry can contain up to 30 characters. PORT [RS232, RS485] Select or identify the current data interface signaling mode: RS232 or RS485. This is the port though which the payload data will pass.
Table 16. INIT Command Generated Defaults (Continued) Parameter Default Setting Corresponding Command Receiver test frequency 2.4xx GHz RX xxx Sleep Enable OFF SLEEP OFF Data Port Setting RS/EIA-232 PORT RS232 Primary Extension Radio Address 0 (Master) XPRI 0 Synchronization Source Map None XMAP 0 Extended Address 0 XADDR 0 Skipped frequencies None (radio will hop across all frequencies) SKIP NONE Hop-time 7 ms HOPTIME 7 Buffer mode OFF BUFF OFF Retry Count 10 (max.
RSSI This command displays the radio’s Received Signal Strength Indication in dBm (decibels relative to 1 mW). The output can range from –40 dBm to –120 dBm. Command availability and results depend on the mode of operation (master or remote). The closer to 0 dBm, the stronger the signal, thus a reading of –70 dBm is stronger than –80 dBm. For a remote radio, under normal operation, RSSI is based on the average signal strength of the SYNC message received in each of the eight frequency zones.
SAF [ON, OFF] This command enables/disables the operation of the Store-and-Forward services. It can be set only at the network’s Master station, but will effect all radios in the associated network. The default setting is OFF. See related commands: “XADDR [0–31]” on Page 51, “XPRI [0–31]” on Page 51, and “XMAP [00000000-FFFFFFFF]” on Page 51. SETUP This command sets up the transceiver for checking antenna SWR or transmitter power with external measuring equipment.
The command parameter is either the keyword NONE or an undelimited string of up to four digits where each digit 1...8 represents a corresponding zone to skip. (For zone parameter input, the digits can appear in any order and can be optionally separated by a blank space.) The SKIP command is display-only at remote radios. (Remotes must be synchronized with the master radio to display the skip status.) In the USA, a maximum of four zones may be skipped, per FCC rules.
UNIT [10000–65000] This command sets the unit addressing for network-wide diagnostics. The unit address is factory programmed to the last four digits of the serial number. If re-programmed in the field, the entry must consist of five digits between 10000 and 65000. XADDR [0–31] Display or program the Extended Address of this radio that will serve as a common address for the sub-network synchronized to this Master or Extension.
Zone quality information can be accessed using the ZONE DATA command. For each zone (1–8), it shows you the number of data frames sent, the number received, and the number received with errors. If an excessive number of errors are seen in one or more frequency zones, it may indicate interference, and you should consider “skipping” those zones using the SKIP command. Note: If a frequency zone has been skipped, all counts for that zone will be zeros.
• Duplicate XADDR values on MODE M and MODE X radios will cause failures unless the radios are far enough apart to not hear each other. • Errors in the synchronization qualifiers, XPRI and XMAP, on corresponding Remote radios. • SAF must be enabled at the Master 11.1 Alarm Codes When an alarm condition exists, the transceiver creates an alarm code. These codes can be very helpful in resolving many system difficulties. Checking for Alarms—STAT command To check for the presence of alarms, enter STAT.
Alarm Code Definitions Table 17 contains a listing of all event codes that may be reported by the transceiver.Additional alarm codes may be used in future firmware releases or are used by the factory. Table 17. Alarm Codes Alarm Code Alarm Type Description 00 Major The network address is not programmed. 01 Major Improper firmware detected for this radio model. 04 Major One or more of the programmable synthesizer loops is reporting an out-of-lock condition.
11.2 LED Indicators The LED indicators on the transceiver board (CR3, CR-4, CR-5 and CR-6) are an important troubleshooting tool and should be checked whenever a problem is suspected. Table 18 describes the function of each status LED. Table 18. LED indicator descriptions RXD TXD DCD GP LED Name Description RXD (CR3) Receive Data Serial receive data activity. Payload data from connected device. TXD (CR4) Transmit Data Serial transmit data activity. Payload data to connected device.
Table 19. Troubleshooting chart Difficulty Recommended System Checks Unit is inoperative. a.Check for the proper supply voltage at the transceiver, J3 Pins 5 and11. b.If using the Evaluation Board, the surface mount fuse may have opened. Refer to Section 4.3 below for replacement instructions. Interference is suspected. a.Verify that the system has a unique network address. Nearby systems with the same address will cause interference. b.
NOTE: The diagnostics feature may not be available in all radios. The ability to query and configure a radio via Network-wide Diagnostics is based on the feature options purchased in the radio being polled. If a PC is connected to any radio in the network, intrusive polling (polling which briefly interrupts payload data transmission) can be performed. To perform diagnostics without interrupting payload data transmission, connect the PC to a radio defined as the “root” radio.
12.0 FIRMWARE UPGRADES From time to time, the factory releases new firmware for its radio products. An upgraded file can be installed in existing radios to take advantage of engineering improvements or additional features. 12.1 Obtaining new firmware The latest firmware for each radio type may be obtained free of charge from our website: www.microwavedata.com/service/technical/support/downloads/ .
Our radios address this issue primarily through the use of the following items: 1) A proprietary modem/data link layer—Data signals are processed using code and hardware specifically designed by the manufacturer. 2) A unique Network Address—This provides a unique identifier for each radio in a network. A radio is not addressable unless this unique code is included in the data string. 3) An optional encryption value (code)—Setting an encryption code requires the use of the CODE command.
DATA CHARACTERISTICS Data Interface: Interface Connector: Data Rate: Data Latency: Byte Length: Maximum Data Transmission: RS-232/422/485 16 pin header, female 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200 bps asynchronous 7 ms (typical) 10 or 11 bits Continuous up to 115200 bps RF CHARACTERISTICS TRANSMITTER: Power Output (at antenna connector): Duty Cycle: Modulation Type: Output Impedance: Spurious: Harmonics: RECEIVER: Type: Sensitivity: Intermodulation: Desensitization: Spurious: Bandwidth: Int
2 4 1 6 8 5 7 Figure 21. 16-pin Header Connector (J3) on OEM Transceiver Board 10 12 9 11 (See parts list (Page18) for information on matching connector) 14 16 13 3 15 Table 21. Transceiver Connector J3 Pinouts (Payload data TTL; Diagnostic data TTL) Input/ Pin No. Output Signal Type Name/Description 1 IN -- Ground—Connects to ground (negative supply potential). 2 OUT TTL, 3 Vdc Diagnostic TXD—Supplies received diagnostic/administrative data to the connected device.
Table 21. Transceiver Connector J3 Pinouts (Payload data TTL; Diagnostic data TTL) (Continued) 10 IN TTL, 3 Vdc Transmitted Data (TXD)—Accepts payload data from the connected device. 11 IN -- FCC 6-18 Vdc version: DC Input (5-25 Vdc)— Supply Source must be capable of furnishing at least 7.5 watts. 12 IN TTL, 3 Vdc Request to Send (RTS)—A high causes CTS to follow after the programmed CTS delay time has elapsed (DCE).
Table 22. Transceiver Connector J3 Pinouts (Payload data TTL; Diagnostic data RS-232) (Continued) 6 IN TTL, 3 Vdc Sleep Mode Input—A ground on this pin turns off most circuits in a remote radio. This allows for greatly reduced power consumption, yet preserves the radio’s ability to be brought quickly back on line. See “Sleep Mode Operation (Remote units only)” on Page 31 for details. 7 OUT TTL, 3 Vdc Data Carrier Detect (DCD)—A low indicates hopping synchronization has been achieved.
Table 23. Transceiver Connector J3 Pinouts (Payload data RS-232; Diagnostic data RS-232) Input/ Pin No. Output Signal Type Name/Description 1 IN -- Ground—Connects to ground (negative supply potential). 2 OUT RS-232 Diagnostic TXD—Supplies received diagnostic/administrative data to the connected device. 3 OUT TTL, 3 Vdc 4 IN RS-232 Diagnostic RXD—Accepts diagnostic/administrative data from the connected device.
Table 23. Transceiver Connector J3 Pinouts (Payload data RS-232; Diagnostic data RS-232) (Continued) 13 -- -- Reserved—Do not connect. 14 OUT RS-232, +/- 5 Vdc Received Data (RXD)—Supplies received payload data to the connected device. 15 IN -- Ground—Connects to ground (negative supply potential). 16 OUT RS-232, +/- 5 Vdc Clear to Send (CTS)—Goes high after the programmed CTS delay time has elapsed (DCE), or keys an attached radio when RF data arrives (CTS KEY). Table 24.
Table 24. Transceiver Connector J3 Pinouts (Payload data RS-485; Diagnostic data RS-232) (Continued) 10 IN Differential RXD+/RXA (Transmitted Data+)—Non-inverting receiver input. Accepts payload data from the connected device. 11 IN -- 12 IN Differential 13 -- -- 14 OUT Differential TXD+/TXA (Received Data+)—Non-inverting driver output. Supplies received payload data to the connected device. 15 IN -- Ground—Connects to ground (negative supply potential).
15.0 dBm-Watts-Volts Conversion Chart Table 25 is provided as a convenience for determining the equivalent voltage or wattage of an RF power expressed in dBm with 50 Ohms load. Table 25. dBm-Watts-Volts 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.
68 TransNET OEM 2.4 Integration Guide MDS 05-xxxxA01, Rev.
IN CASE OF DIFFICULTY... MDS products are designed for long life and trouble-free operation. However, this equipment, as with all electronic equipment, may have an occasional component failure. The following information will assist you in the event that servicing becomes necessary. CUSTOMER ASSISTANCE Assistance for MDS products is available from our Customer Support Team during business hours (8:00 A.M.–5:30 P.M. Eastern Time).
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.
