Data transmission equipment unit (error protection unit) with data processing equipment interface specifications:
Interface type  Used circuits    Data rate  Transmission method  Transmission mode	C2 GOST 18145-81 ( V.24 / V.28 ITU-T, RS-232S EIA ) 101, 102, 103, 104, 105, 106, 107, 108.1, 109, 113, 114, 115, 133, 134, 150, 152, 153, (154), 155 600, 1200, 2400, 4800, 7200 or 9600 bps sequential synchronous duplex and simplex
Data transmission equipment unit (signal conversion unit) with data processing equipment interface specifications:
Interface type   Used circuits  Data rate  Transmission method  Transmission mode	C2 GOST 18145-81 (V.24 / V.28 ITU-T, RS-232S EIA ) 101, 102, 103, 104, 107, 109, 113, 114, 115 600, 1200, 2400, 4800, 7200 or 9600 bps sequential synchronous and asynchronous duplex and simplex
Data transmission equipment unit (signal conversion unit) with tone frequency channel interface specifications:
Interface type  Channel type  Data rate  Transmission method  Transmission mode	C1-TCH GOST 25007-81 standard four-wire 600, 1200, 2400, 4800, 7200 or 9600 bps sequential synchronous or asynchronous duplex and simplex
Interface with computer:
Interface type  Data rate  Transmission method  Transmission mode	RS-232S EIA (V.24/V.28 ITU-T, C2 GOST 18145-81) 9600 bps sequential asynchronous simplex (data transmission equipment unit transmission)
Power supply by two feeders of single-phase AC power system
Voltage, V  Frequency, Hz	187÷242 50÷1
Consumed power, VA, no more	20.0
Dimensions (depth x width x height), mm	235 x 238 x 295
Weight, kg, no more	6.0
MTBF, h, not less	10 000
MTTR, h, no more	0.5
Operation mode	round-the-clock, uninterrupted

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