Model 285 Specifications  
 
 

Interface: RS-232: Conforms to RS-232 and CCITT V.24. Pins 2 and 3, Transmit and Receive data, switch selectable. Pins 4, RTS, tied to Pin 5, CTS. Pins 6 (DSR), 8 (DCD) and Pin 20, (DTR) are connected together

RS-485: Conforms to RS-485

RS-422: Conforms to RS-422

Connectors: RS-232: DB25 male

RS-485/RS-422: 5 position terminal block

Indicators: 2 LED's TD and RD

Switches: DTE/DCE switch selectable for reversing TD and RD; 5 position dip switch: set RS-485 2 or 4 wire, RS-422 and termination

Data Rate: 0 to 64 KBPS

MTBF: 596,000 Hours (68 Years)

Power: 115VAC @ 60Hz (220VAC/50Hz optional) to 9VAC via desktop supply

Size: 2.1" W (53mm) x 4.6" L (117mm) x 0.83" H (21mm)

Environment: 0° to 50° C, 0% to 95% RH

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