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APPENDIX A
SPECIFICATIONS
Transmission Format: Asynchronous
Data Rate: Up to 115,200 bps
Transmit Line: 2, 4 wire unconditioned twisted pair
Transmit Mode: Full or half duplex
Transmit Level: 0 dBm
Range: Up to 9 miles
Control Signals: In DCE mode, DSR turns “ON” immediately after the
terminal raises DTR; DCD turns “ON” after recogniz
ing the receive signal from the line; CTS turns on
after the terminal raises RTS
Carrier: The carrier is switch selected either continuous operation or
switched operation, controlled by RTS
Surge Protection: 600W power dissipation at 1 mS and response
time less than 1.0 pS
Power: No external power required, uses ultra low power from EIA
data and control signals
Size: 2.66” x 2.10” x 0.73”
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APPENDIX B
RS-232 PIN CONFIGURATIONS
1- (FG) Frame Ground
2- (TD) Transmit Data To Model 1004
3- (RD) Receive Data From Model 1004
4- (RTS) Request to Send To Model 1004
5- (CTS) Clear to Send From Model 1004
6- (DSR) Data Set Ready From Model 1004
7- (SG) Signal Ground
8- (DCD) Data Carrier Detect From Model 1004
To Model 1004 Data Term. Ready (DTR) - 20
DIRECTION “DCE” SETTING DIRECTION
1- (FG) Frame Ground
2- (TD) Transmit Data From Model 1004
3- (RD) Receive Data To Model 1004
4- (RTS) Request to Send From Model 1004
5- (CTS) Clear to Send To Model 1004
6- (DSR) Data Set Ready To Model 1004
7- (SG) Signal Ground
8- (DCD) Data Carrier Detect To Model 1004
From Model 1004 Data Term. Ready (DTR) - 20
DIRECTION “DTE” SETTING DIRECTION
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