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”
APPENDIX B
RS-232 PIN CONFIGURATIONS
DIRECTION | “DCE” SETTING |
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| 1- (FG) Frame Ground |
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| 2- (TD) Transmit Data | To Model 1004 |
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| 3- (RD) Receive Data | From Model 1004 |
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| 4- (RTS) Request to Send | To Model 1004 |
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| 5- (CTS) Clear to Send | From Model 1004 |
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| 6- (DSR) Data Set Ready | From Model 1004 |
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| 7- (SG) Signal Ground |
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| To Model 1004 | Data Term. Ready (DTR) - 20 |
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| 8- (DCD) Data Carrier Detect | From Model 1004 |
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| DIRECTION |
| “DTE” SETTING | DIRECTION | ||||||
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| 1- (FG) Frame Ground |
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| 2- (TD) Transmit Data | From Model 1004 |
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| 3- (RD) Receive Data | To Model 1004 |
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| 4- (RTS) Request to Send | From Model 1004 |
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| 5- (CTS) Clear to Send | To Model 1004 |
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| 6- (DSR) Data Set Ready | To Model 1004 |
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| 7- (SG) Signal Ground |
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| From Model 1004 | Data Term. Ready (DTR) - 20 |
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| 8- (DCD) Data Carrier Detect | To Model 1004 |
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15 | 16 |