Model 227 Specifications  
 
 

Interface: Conforms to RS-232 and CCITT V.24 specifications. Pins 2 and 3, Transmit and Receive Data are switch selectable as DTE/DCE. Pin 4, RTS internally connected to Pin 5, CTS. Pins 6,8 and 20, DSR, DCD and DTR are connected together. Pin 1 is Frame Ground, Pin 7 is Signal Ground.

Transmission: Asynchronous; full duplex - two twisted pairs. Connectors: RS-232 DB-25 Male; Line - screw terminals and RJ-11 modular plug.

Data Rate: 0 - 115.2 KBPS.

Operating Distance: The following table gives maximum distance as a function of data rate, assuming 26AWG wire.

Data Rate (KBPS) 115.2 57.6 38.4 19.2 2.4
Distance (KFeet) 3.5 4.0 5.0 7.5 30.0
Distance (KMeters) 1.0 1.2 1.5 2.3 9.0

LCD Indicators: TD & RD Graphic, RTS, CTS, DSR, DCD and DTR

Power: Derived from TD signal.

Size: 2" x 4.1"L x 0.8"H

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

MTBF: 580,000 Hours.

 

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