Patton electronic 285S ユーザーズマニュアル

APPENDIX A

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: DSR turns "ON" immediately after the terminal 

raises DTR; DCD turns "ON" after recognizing the
receive signal from the line; CTS turns on after 
the terminal raises RTS

Carrier: The carrier is strap 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: None required, uses ultra low power from EIA data and con

trol signals

Size: 2.66" x 2.10" x 0.73"

APPENDIX B

13

14

1- (FG) Frame Ground
2- (TD) Transmit Data

To Model 285

3- (RD) Receive Data

From Model 285

4- (RTS) Request to Send

To Model 285

5- (CTS) Clear to Send

From Model 285

6- (DSR) Data Set Ready

From Model 285 

7- (SG) Signal Ground
8- (DCD) Data Carrier Detect

From Model 285

To Model 285

Data Term. Ready (DTR) - 20

1- (FG) Frame Ground
2- (TD) Transmit Data

From Model 285

3- (RD) Receive Data

To Model 285

4- (RTS) Request to Send

From Model 285

5- (CTS) Clear to Send

To Model 285

6- (DSR) Data Set Ready

To Model 285

7- (SG) Signal Ground
8- (DCD) Data Carrier Detect

To Model 285

From  Model 285

Data Term. Ready (DTR) - 20