Loopback modes, Fault outputs, Terrestrial interface types – Comtech EF Data C5 User Manual
Page 75: Universal
C5/K1/K3 Integrated Satellite Terminal System
Specifications
Rev. 0
2–41
2.5.1.13 Loopback
Modes
The operator can select one of the following interface loopback test modes:
( Baseband: Near end and far end.
( Interface: Near end and far end (only available with either the Reed-Solomon or
ASYNC/AUPC daughter card installed).
2.5.1.14 Fault
Outputs
Modulator Fault
Open collector output, 15V maximum, 20 mA maximum
current sink, fault is open circuit.
Demodulator Fault
Open collector output, 15V maximum, 20 mA maximum
current sink, fault is open circuit.
2.5.2
Terrestrial Interface Types
2.5.2.1 Universal
The following electrical interface types are available through the EIA-530, 25-pin D data
I/O connector:
( EIA-232
( V.35
( EIA-422
Optional mechanical interfaces also are available. See Chapter 3 for pinout data on the
following connectors:
( 37-pin D (EIA-449)
( 34-pin Block (V.35)
( 50-pin D
ASYNC/AUPC interfaces are available through the optional 50-pin data I/O connector. In
order to satisfy the mechanical specification, the correct breakout panel must be connected
to the modem.