Integra Technical Manual Version: Integra-TR Service
INTEGRA-TR WIRELESS MODEM Part No. 242-40V8-XYZ Copyright 1999 by Dataradio Inc. Part Number: 001-4008-101/102 Revision 5 June 2001 Dataradio COR Ltd. designs and manufactures radios and wireless modems to serve a wide variety of data communication needs. Dataradio produces equipment for the fixed data market including SCADA systems for utilities, petrochemical, waste and fresh water management markets and RF boards for OEM applications in the Radio Frequency Data Capture market.
SECTION 1 PRODUCT OVERVIEW 1.1 SCOPE OF MANUAL This document provides the information required for the operation and preventive maintenance of the DATARADIO Integra-TR wireless modem. This manual is intended for system designers, installers and maintenance technicians 1.2 GENERAL DESCRIPTION Integra-TR is a high-speed transparent wireless modem. It is FCC refarming compliant and designed specifically to fit the needs of SCADA, telemetry and control applications.
1.2.2 ACCESSORIES AND OPTIONS Accessory DRL Part Number Integra-TR Field Programming Kit (includes software and technical manual on CD ROM, and programming cable - DRL part number 697-4008-408) 250-4008-001 SMA Male - BNC Female adapter cable 023-3410-098 *Cooling fan - factory option (For extended duty-cycle transmit applications) Catalog number plus “F” suffix.
Figure 1-2 Installation Dimensions 1-3 Part No.
1.2.4 INTEGRA-TR CE Important Notice/Warning on restrictive use in all EU and EFTA member states: This device is a VHF/UHF Radio data transmitter intended for indoor and outdoor use. Operation of this device is subject to end-user licence. The end user is strongly advised to contact the local frequency management authorities to obtain such an end-user licence according to local legislations and frequency allocations. The manufacturer takes no responsibility for any unauthorized use of this device.
CERTIFICATE CERTIFICATE OF CONFORMITY OF A PRODUCT WITH THE ESSENTIAL REQUIREMENTS OF DIRECTIVE 1999/5/EC, ACCORDING TO THE CONFORMITY ASSESSMENT PROCEDURE REFERRED TO IN ARTICLE 10(5) AND ANNEX IV DESCRIPTION OF THE PRODUCT Manufacturer : Dataradio COR Ltd.
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DATARADIO COR Ltd. 299 Johnson Avenue, P.O. Box 1733 Waseca, MN 56093-0833 USA Phone: 1-800-772-7774; 507-835-8819 Fax: 507-835-6648 Website: www.dataradio.com Declaration of Conformity We, the undersigned, Company Address, City Country Phone number Fax number Dataradio COR Ltd.
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DATARADIO COR Ltd. 299 Johnson Ave, P.O. Box 1733 Waseca, MN 56093-0833 USA Phone: 1-800-992-7774; 507-835-8819 Fax: 507-835-6648 Website: www.dataradio.com Declaration of Product Quality Assurance.
1.2.5 CONFIGURATION Operating characteristics of the Integra-TR are configured by means of Integra-TR's Field Programming Software. The Field Programming Software is Windows based and requires a Windows95 or later operating system. Integra-TR requires the use of the Integra-TR Field Programming Software for both configuration and adjustment. 1.
A Return Material Authorization (RMA) is required when returning equipment to Dataradio for repair. Contact the Technical Service Department at 800-992-7774 (extension 6707) or send an email (rma@dataradio-cor.com) to request an RMA number. Be prepared to give the equipment model and serial number, your account number (if known), a detailed reason for return, a "ship to" address (with return shipping instructions), a "bill to" address, and a contact name. No equipment will be accepted without an RMA number.
1.9 FIRMWARE UPGRADES The Integra-TR firmware resides in flash EPROM and is designed to allow field upgrades. Upgrades are done using a PC connected to the Integra-TR but do not require opening the unit. Upgrades require intervention with DRL’s Technical Service. 1.10 NETWORK APPLICATION Integra-TR is suited to a variety of network applications. Its primary design goal was to satisfy the needs of SCADA systems using RTUs or PLCs in either point-to-point or point-to-multipoint service.
Figure 1-3 Basic Required Connections 1.10.3 COMMON CHARACTERISTICS The networks described in this section share common characteristics: 1. The network speed (2400, 4800, 9600 and 19,200 b/s) must be the same for all stations in a network. 2. Transmission of online diagnostics may be enabled or disabled at any station or stations without affecting their ability to communicate with other stations. 1.10.4 POINT-TO-POINT SYSTEM A simple point-to-point connection is shown in Figure 1-4.
remote Duplexer RX TX Fan remote Y Cable 730 03350-00x If a simplex radio network is used (i.e. a single frequency for all stations), we recommend that the master Integra-TR be set to “master”, the remotes to “remote” and all units to “selective” data delivery. This will prevent remote stations from hearing each other's responses. For full duplex configuration, set the receiving unit Rx/Tx Mode to Rx Only (using the Field Programming Software).
1 RXD 2 GND 5 TXD 3 1 DCD 2 RXD 3 TXD 4 DTR 5 GND GND 5 6 DSR DSR 6 7 RTS RTS 7 8 CTS CTS 8 RX-Unit (DE-9M) DCD TX-Unit (DE-9M) DE-9F USER (DTE) Y-CABLE Figure 1-8 Integra-TR Full-duplex Base Station Pinout 1.10.6 EXTENDING A LANDLINE (TAIL CIRCUIT) Integra-TR may be used to extend a landline circuit (giving access to difficult locations, etc.). This type of connection is called a “tail circuit” and is shown in Figure 1-9.
Some point-to-point FDX landline modems or line drivers may require the use of DOX mode and an alternate pinout for DTR, DCD, CTS and RTS as shown in Figure 1-11. DE-9M DE-9M 4 3 2 8 5 DTR DCD TXD RXD RXD TXD CTS RTS GND GND 1 7 DCD DTR RTS CTS 1 2 3 7 5 6 4 8 9 Figure 1-11 DCE Crossover Cable for DOX Mode 1-16 Part No.
GENERAL SPECIFICATIONS These specifications are subject to change without notice. GENERAL Frequency VHF UHF 900 MHz 132-174 MHz 380-403 MHz* 928-960 MHz 403-512 MHz Channels One channel Channel Bandwidth 6.25 (VHF and UHF only), 12.5, or 25 kHz models Operating Temperature -30° to + 60° C Supply voltage 10 - 16 VDC maximum (nominal 13.3) Fuse protected against reverse voltage (internal surface mount 3A fuse: not field replaceable) Rx Current Drain at 13.
Modem / Logic Operation Data Bit Rates Modulation Type RTS/CTS Delay (RTS mode) Addressing Bit Error Rate (BER) 2400 b/s 6.25 kHz 4800 b/s 6.25 kHz 9600 b/s, 12.5 kHz 9600 and 4800 b/s, 25 kHz 19200 b/s, 25 kHz COM Port Interface Data Rate Protocol Transmit Control Simplex / half duplex 25 kHz channel: 4800 b/s, 9600 b/s, 19200 b/s DRCMSK (Differential Raise-Cosine Minimum Shift Keying) 4 ms 8 bit station address, 1 bit station type (master / remote) TBD TBD 1 x 10 -6 at 1.
SECTION 2 FEATURES AND OPERATION 2.1 OVERVIEW This chapter describes the connections, indicators, and operating characteristics of the Integra-TR. This chapter is intended for system application and installation personnel. 2.2 FRONT PANEL The various front panel elements are described in the following sections. Figure 2-1 Integra-TR Front Panel 2.2.1 Antenna Connector Antenna connector is a female 50-ohm SMA- type.
2.2.3 LED Indicators Integra-TR has four two-color LED indicators. Their functions are shown in Table 2-1.
2.2.4.1 Connector Pin Out The DE-9F pin out is shown in Figure 2.2 for reference. 5 4 9 Figure 2-2 3 8 2 7 1 6 COM and Setup Port Connectors Pin Locations 2.2.4.2 Wire Connection (DOX) Field Programming Software For DTE that lack RTS control, Integra-TR can operate in DOX mode (Data Operated Transmit) with only Transmit Data, Receive Data and Ground (“3-wire interface”). DE-9M 1 2 3 4 5 6 7 8 9 RXD TXD GND Figure 2-3 3-Wire Interface 2.2.
2.3 REAR PANEL Figure 2-4 Integra-TR rear panel The various elements are described in the following sections. 2.3.1 Heat Sink The rear panel heat sink is essential for proper operation of the Integra-TR transmitter. The unit must be mounted in a location that permits free air circulation past the heat sink. Cooling will be best if the fins are vertical. 2.3.2 Power The Integra-TR power requires a regulated power source of 13.3 VDC nominal (10 - 16 VDC max.) negative ground with a 3.0 A rating.
Figure 2-6 Integra-TR Field Programming Software Startup Screen 2.4 INTEGRA-TR FIELD PROGRAMMING SOFTWARE 2.4.1 Introduction The Integra-TR Field Programming Software is the programming and diagnostics software for the Dataradio Integra-TR wireless modem. The Field Programming Software allows the user to edit and program user programmable settings, interactively tune modem and RF parameters, and monitor diagnostic data from the Integra-TR.
Figure 2-7 Port Settings Screens Baud Rate Selects the communication speed for Primary and Secondary COM Ports. Data Bits Selects the number of data bits (4-8) transmitted or received for the Primary and Secondary COM Ports. Parity Selects transmission or reception of any Parity Bits for the Primary and Secondary COM Ports. Stop Bits Selects number of Stop Bits (1 or 2) transmitted or received for the Primary and Secondary COM Ports.
See Table 2-4 for Communication Modes configurations. Table 2-4 Communication Modes Mode Description Sync/ESC with No HS Sends data using Sync/byte-stuffing protocol without handshaking. Buffered with No HS Sends buffered data without handshaking. Sync/Esc with RTS/CTS HS Sends data using the Sync/Esc byte-stuffing protocol with RTS/CTS hardware handshaking. Buffered with RTS/CTS HS Sends buffered data with RTS/CTS hardware handshaking.
DCD DCD shows the current state of the DCD (data carrier detect) line. DCD is an input to the PC. Bytes Tx’ed Bytes Transmitted shows the number of bytes (characters) transmitted since the port was last opened. Bytes Rx’ed Bytes Received shows the number of bytes (characters) received since the port was last opened. Framing Errors Framing Errors shows the number of Framing Errors received since the port was last opened.
2.4.3.1 Modem Operating Parameters The Setup Modem/Radio Parameters allows the user to view and edit Integra-TR’s programmable parameters. Programming parameters can be stored in a data file with the .DAT file extension. Programmable parameters are used by the Read/Write Parameters screen for programming into nonvolatile memory. Parameter settings are modified from three screen tabs: the Modem tab, Com/Analog tab, and Radio tab.
Unit Type This radio button selects unit type: z z Remote - Select this option to designate the unit as a Remote station Master - Select this option to designate the unit as a Master station Designating a unit as Master or Remote sets a flag in the header identifying Unit Type of originating station. This function is used in conjunction with “Data Delivery” when running certain user protocols.
Integra-TR Suspend Mode Time Graphic (not to scale) Suspend mode time Carrier sensed, no data No carrier or data continues after Activity Timeout Activity timeout period 100 ms wake up Radio samples carrier `100ms Carrier & data - Radio “on” Time Radio sees carrier, no datastays “on” for Activity Timeout Radio sees carrier & data- stays on for multiple Activity Timeouts until data Rx/Tx is complete Radio goes back into Suspend ModeTimer Note: Graphic uses 100 ms timing parameter as required by Sus
Integra-TR Control Signal Timing The PLC/RTU/Computer wants to send data RTS (Request to send) CTS (Clear to send TX data RTS is raised by the PLC/RTU or computer RTS causes the transmitter to turn on (Integra) {Synch.
DCD Control This field selects the mode of the RS-232 DCD (Data Carrier Detect) Active - always asserted Switched - follows the radio carrier and data sent to DTE DTE Baud Rate z z This field selects the port speed of the COM Port (independent of Network Speed) z z z z z z 300 1200 2400 4800 9600 19200 For best results, Dataradio recommends using the same rates for both the COM Port and Network Speeds. DTE Data Format This field selects the format for the COM Port.
Analog 1 Analog 1 selects configuration of Pin 3 of the Power/Analog connector (green wire): z z Input - for use on units not equipped with the cooling option - can be used to monitor an external voltage (0 to 10 volts) Fan Control - regulates an external fan. Factory set (enabled) and the default for all units equipped with the cooling option. The temperature-controlled open-collector transistor is rated for 100 mA max. The unit’s internal thresholds are set for ON at 48 degrees C and OFF at 38 degrees C.
Range This field designates radio frequency range. Channel This field specifies whether the unit is quarter-, full-, or half-channel (6.25, 12.5, or 25 kHz). Transceiver Type This field configures the transmitting and receiving characteristics of the unit according to network application: z z z Tx Only - For use in a full-duplex application to disable receptions on the unit used as the transmitter.
2.4.4 Apply Station Reset Station Reset tells the Integra-TR to perform a software reset. Performing a Station Reset reacts the same as cycling power to the unit. Figure 2-13 Station Reset Screen 2.4.5 Version Request Selecting Version Request causes the Integra-TR Field Programming Software to display information about the version of the Integra-TR hardware and firmware. Figure 2-14 Version Request Screen 2.4.
2.4.7 Radio Parameter Cloning Figure 2-16 Clone Programmable Parameters Screens After the initial Integra-TR parameters are programmed, saved, and stored in local memory, other Integras in the system can be quickly programmed using the cloning option under the Edit pull-down menu. Clone Programmable Parameters will program the radio with all of the currently loaded parameters except the Short ID and Comment.
Figure 2-17 Offline Link Test Screen Blocks Tx’ed to Remote Blocks Tx’ed to Remote displays the number of data blocks transmitted to the remote unit. Responses from Remote Responses from Remote displays the number of responses heard from the remote unit. Blocks Rx’ed from Remote Blocks Rx’ed from Remote displays the number of data blocks received from the remote unit.
Block Delay (s) Block Delay (s) allows the user to determine the delay between the transmission of data blocks in 0.25 second intervals (0.00 to 10.00 seconds). Clear Clear allows the user to clear the display (blocks transmitted, responses received, blocks received and link quality). Start Start is used to begin the test. Pause Pause is used to pause the test and allows the user to resume the test at a later time. 2.4.
Figure 2-18 Offline Diagnostics Screen Diagnostic Select / Selected Remote ID This button allows the user to gather Offline Diagnostics from the selected Remote ID only. Diagnostic Select / Remote ID List This button allows the user to gather Offline Diagnostics from all the IDs in the list of Remote IDs (including the local unit). Get Diags The Get Diags button allows the user to send the command for Offline Diagnostics.
The Rev Pwr check box allows the user to view the reverse power instead of forward power while the local unit is transmitting. Progress The Progress panel shows the progress of the Get Diags request. Tx Mode The Tx Mode combo box allows the user to select different transmit modes when the unit is told to transmit: Tone: the unit will transmit a 1200 Hz tone. Mod Balance: the unit will transmit a 100 Hz square wave. Random Data: the unit will transmit random data.
Figure 2-19 Online Diagnostics The following Online Diagnostics are available: Short ID The Short ID displays the Short ID of the unit transmitting the diagnostics. Temp Temp displays the internal case temperature (in Celsius) of the unit transmitting the diagnostics. Batt Batt displays the supply voltage (in volts) of the unit transmitting the diagnostics. RSSI RSSI displays the RSSI (in dBm) ID of the unit transmitting the diagnostics.
RevP RevP displays the approximate measure of reverse (reflected) power of the unit transmitting the diagnostics. This is represented as “Good” if the reverse power is within acceptable limits and is represented as “Bad” if the reverse power is too high. RSSI RSSI displays the Remote RSSI (in dBm) of the unit last transmitting the diagnostics. This is the RSSI found in the Online Diagnostics of the last transmission received by the unit.
Save The Save button allows the user to save the current Online Diagnostics to a file. 2.4.12 Diagnostic IDs and Alarms The Diagnostics IDs and Alarms screen allows the user to set up the ID List for use with the Offline Link Test, and Offline and Online Diagnostics as well as Alarms for use with Online Diagnostics. Figure 2-20 Diagnostic IDs and Alarms Screen ID Entry and List ID Entry: Allows the user to add Short IDs to the ID List. The range of this field is 1 to 255.
Low/High Fwd Pwr: Low/High Pwr represents the low and high limits for the forward power diagnostics (in watts). Open The Open button allows the user to restore Diagnostic IDs and Alarms from a previously saved file. Save The Save button allows the user to save the current Diagnostic IDs and Alarms to the current file. Save As The Save As button allows the user to save the current Diagnostic IDs and Alarms to a name different than the current file. 2.4.
Temperature Internal temperature (in degrees Celsius) Forward Power Forward power (in watts) Reverse Power Reverse power (in watts) Analog Input 1 Voltage on the External Analog 1 Input from the Power / Analog Connector (in volts) Analog Input 2 Voltage on the External Analog 2 Input from the Power / Analog Connector (in volts) Preamble Good The number of correctly decoded transmissions received in the last 15. Used with Preamble Total, this serves as an indication of how well the unit is receiving data.
Rx / Tx Frequency Rx / Tx Frequency shows the current transmit frequencies. F5 Pressing the F5 key will cause the unit to transmit on the programmed transmit frequency. F6 Pressing the F6 key will cause the unit to go to receive on the programmed receive frequency. 2.4.14 ASCII / Hex Terminal Terminal Screens allow the user to select an ASCII or Hexadecimal Terminal Screen for the Primary and Secondary COM Ports (configured in the Port Settings screen - see Section 2.4.
2.4.14.1 ASCII Terminal ASCII Terminal configurations include: Primary The Primary ASCII Terminal screen sends and receives ASCII data on the Primary COM Port (set up in the Port Settings screen). Secondary The Secondary ASCII Terminal screen sends and receives ASCII data on the Secondary COM Port (set up in the Port Settings screen). 2.4.14.
Integra-TR Field Programming Software’s online help files are accessed by the menu bar at the top of the Field Programming window. 2.6 OPTIMIZING YOUR SYSTEM Detailed system engineering is beyond the scope of this manual. However, there are some simple tips that can be used to optimize performance of a radio based SCADA or telemetry system. Choose the best protocol Some SCADA devices allow a choice of more than one operating protocol.
SECTION 3 MAINTENANCE AND ADJUSTMENTS 3.1 OVERVIEW AND MAINTENANCE INTERVALS This chapter outlines the basic tests and adjustments required upon initial installation and thereafter at annual maintenance intervals or whenever deterioration in performance indicates that adjustment may be required. Units are delivered from the factory properly aligned and tested on the frequency range specified at time of order.
3.5 PRELIMINARY STEPS Important Note: Before proceeding make sure that the service monitor has been calibrated recently and has warmed up for at least the time specified by its manufacturer. Some reported frequency and deviation problems have actually been erroneous indications from service monitors that have not adequately warmed up. This is particularly likely when field service is done during winter months. 1.
Table 3-1 Tests and Adjustments for One-quarter, Half, and Full Channel Units Step Action 1 Output Power 2 Frequency Error Press TX Unmod 3 Deviation Press TX tone For any bit rate speeds selected 4 Carrier Sense Inject a non-modulated carrier at -120 dBm to the Integra-TR RF input; Raise the service monitor RF output until the CS LED comes on 5 6 7 8 Expected Results Measure With 5 W 1 + 10%, -20% Within + 300 Hz Tol. +5%, -10% For Full channel: +4.0 kHz For Half channel: +2.
SECTION 4 NETWORK TROUBLESHOOTING 4.1 TROUBLESHOOTING OVERVIEW The Field Programming Software provides help for the user to find problems on individual units within a network. This program runs (only) from the Integra Setup port. Here is a list of tests that a user (having network communication problems) can try while using this software utility: With user network application's running: z z Monitor the current network activity by using online diagnostics monitoring feature Gather diagnostics (i.e.
4.2.2 OFFLINE DIAGNOSTICS Offline diagnostics are used for trouble-shooting and test transmissions to remote units or to a local connected unit. Offline diagnostics are intrusive as they take control of radio channels. User applications must be offline. 4.
Field Name Description Tolerance Temp Internal case temperature SWB+ Selected unit main DC power measured in tenths of a volt from 6.0 to 18.8 volts, WARNING: Do not exceed 16Vdc. Peak Ext1 Ext2 Good Total Operating limits: -30 degrees C to +75 degrees C Should nominally be close to 13.3VDC Application of more than 16 VDC will damage the unit and is Operating limits: 10.0 to 16.0 V not covered by the warranty.
Table 4-2 Link Test Display Format Action Format Blocks Sent Blocks Received by remote Link Quality to remote 0-100 0-100 0.0% to 100.0% 0-100 Responses from remote Link Quality from remote Overall Link Quality Results Relation A B B over A Records the total number of blocks transmitted to the remote Indicates recorded total number of blocks received by the remote Ratio (percentage) of blocks received by the remote compared to blocks transmitted.
Table 4-3 Typical Transmit Deviation Connected to an Integra-TR, Full Channel, Part Number 242-40X8-Y30, Native Compatibility Mode Network Speed (in b/s) 19200 9600 4800 Typical Deviation (kHz) + 4.0 + 4.0 + 4.0 Voltage at Pin 4 when receiving that deviation from other units (white wire of analog/power connector) (Vpp) 1.5 1.5 1.
SECTION 5 CONFIGURABLE PARAMETERS 5.1 PARAMETER OVERVIEW The parameters used to configure the Integra-TR units are described in the Field Programming Software help file. Section 5 summarizes the Integra-TR parameter settings and their variations when used within a network.
Table 5-2 Normal Factory Settings (Bases) Fields Full Duplex Base Integra-TR with Redundant Integra-TR Full Duplex other Integra-TR Base with Integra-TR/ Integra-T RX Unit Network Settings Compatibility Mode Tx/Rx Mode Extended Preamble (ms) Network Speed TX Unit Rx Units Tx Only Integra-TR and Integra-T Rx Only Tx Only Integra-TR Rx Only 0 19200 Full Channel, 9600 Half Channel, or 2400 Quarter Channel Disable Yes Master All 0 5 Disable (N/A) TX Units 9600 Full Channel Tx Time Out Tx Online Diagn
SECTION 6 CIRCUIT DESCRIPTION 6.1 OVERVIEW Section 6 describes the circuit operation of the logic board. This section is intended for use by engineering and service personnel. 6.2 CIRCUIT DESCRIPTION Refer to Figure 6-1 for the block diagram of the Integra-TR Logic Board. 6.2.1 MICROPROCESSOR CIRCUIT The microprocessor contains two Z84015 CMOS low power Intelligent Peripheral Controllers (IPC).
(E-Pot), controlled by CPU U17, is used to set the transmitter deviation by amplitude adjustment of the baseband signal. Electronic potentiometer U5C is also provided to fine adjust the RF carrier frequency. 6.2.4 TRANSMIT & RECEIVE DATA Transmit Data from the RS-232 port is level-shifted to TTL by U15 and passed through the CPU for further processing and conversion from asynchronous to synchronous format.
An 8 channel, 8-bit successive approximation A/D converter, type AD0838 (U9), is interfaced to CPU (U18) and Peripheral (U20). U19 generates a power-on reset for the CPU and U6 is a temperature sensor used by the firmware to compensate for variations in RSSI. The RSSI signal from the transceiver is amplified and filtered by U7A. The signal is compared to a threshold value set by digital potentiometer (U5A).
U21 U17 LED BI-COLOR PERIPHERAL U16 CPLD MODEM CPU CONTROL BUS TXC TXD DATA BUS ADDRESS BUS PA0-PA7 U20A,B RS-232 DRIVER USER PORT SIO-A ROM SYNTHESIZER ENABLE-CLOCK-DATA RX ENABLE TX ENABLE U18 Q3 RX-EN U22 DE9 EXT 1 EXT 2 RXS SLICER LEVEL MODE SPEED U15 SETUP PORT FILTER CLOCK RXC RXD MEM. DECODE DE9 TXA CLOCK OUT RAM OUT-2 U4 FAST PEAK DETECT U19 Q4 RESET A/D OUT 13.6 V CLK,DATA SELECT X1 19.
SECTION 6 CIRCUIT DESCRIPTION 6.1 OVERVIEW Section 6 describes the circuit operation of the logic board. This section is intended for use by engineering and service personnel. 6.2 CIRCUIT DESCRIPTION Refer to Figure 6-1 for the block diagram of the Integra-TR Logic Board. 6.2.1 MICROPROCESSOR CIRCUIT The microprocessor contains two Z84015 CMOS low power Intelligent Peripheral Controllers (IPC).
(E-Pot), controlled by CPU U17, is used to set the transmitter deviation by amplitude adjustment of the baseband signal. Electronic potentiometer U5C is also provided to fine adjust the RF carrier frequency. 6.2.4 TRANSMIT & RECEIVE DATA Transmit Data from the RS-232 port is level-shifted to TTL by U15 and passed through the CPU for further processing and conversion from asynchronous to synchronous format.
An 8 channel, 8-bit successive approximation A/D converter, type AD0838 (U9), is interfaced to CPU (U18) and Peripheral (U20). U19 generates a power-on reset for the CPU and U6 is a temperature sensor used by the firmware to compensate for variations in RSSI. The RSSI signal from the transceiver is amplified and filtered by U7A. The signal is compared to a threshold value set by digital potentiometer (U5A).
U21 U17 LED BI-COLOR PERIPHERAL U16 CPLD MODEM CPU CONTROL BUS TXC TXD DATA BUS ADDRESS BUS PA0-PA7 U20A,B RS-232 DRIVER USER PORT SIO-A ROM SYNTHESIZER ENABLE-CLOCK-DATA RX ENABLE TX ENABLE U18 Q3 RX-EN U22 DE9 EXT 1 EXT 2 RXS SLICER LEVEL MODE SPEED U15 SETUP PORT FILTER CLOCK RXC RXD MEM. DECODE DE9 TXA CLOCK OUT RAM OUT-2 U4 FAST PEAK DETECT U19 Q4 RESET A/D OUT 13.6 V CLK,DATA SELECT X1 19.
SECTION 7 DEFINITIONS Bit dribble COM Port CTS DCE DOX DTE Field Programming Software Full Channel Half Channel Quarter Channel Network speed PLC Refarming RTS RTS mode RTU SCADA SETUP Port Transparent Extraneous bits delivered at the end of a data transmission. Equivalent to a “squelch tail” in voice systems. Integra-TR does not have bit dribble. The Communications Port of Integra-TR. This port is configured as DCE and is designed to connect directly to DTE. Clear to Send.
