Interface: Conforms to EIA RS-232 and CCITT V.24. Pin 4 connected to Pin 5; Pin 8, DCD, is the received handshake signal; Pin 20, DTR is the transmitted handshake signal and must be high to transmit data

Connectors: RS-232 = DB25 female; 4 wire line=screw terminals and RJ-11

Data Rate: 0-19.2 KBPS

Transmission: Asynchronous, full duplex on two twisted pairs, balanced current loop via optical couplers. Conforms to Bell Tariff 3081 and PUB 43401

Operating Distance: The following table gives maximum distance as a function of data rate:

Data Rate (KBPS)	19.2	9.6	4.8	2.4	1.2	.6
Distance (Miles)	1	2	3	5	10	10

Power: 110 volts AC, 60Hz., 220V, 50 HZ optional

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

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

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