Comtech EF Data C5 - Manual (Page 286)

Remote Control Operation C5/K1/K3 Integrated Satellite Terminal System
B–2 Rev. 0
Messages on the remote link fall into the categories of commands and responses.
Commands are messages, which are transmitted to a satellite modem, while responses are
messages returned by a satellite modem in response to a command.
The general message structure is as follows:
! Start Character
! Device Address
! Command/Response
! End of Message Character
B.2.1 Remote Control
All terminal functions can be controlled remotely through the Remote connector on the
rear panel.
Interface Types:
! EIA-485 (2- or 4-Wire)
! EIA-232
! Baud Rate Range (150 to 19.2 kbit/s)
! ASCII Characters
! 11 bits per character:
B.2.2 Monitored Signals
The operator can display/read one of the following, continually-updated performance
monitors:
! Receive signal level -15 to -85 dBm, " 5 dB for Symbol Rates > 190 ks/s
-25 to -100 dBm,
" 5 dB for Symbol Rates # 190 ks/s
! Raw BER
! Corrected BER
! Eb/N0, 0.1 dB resolution
! Receive frequency offset, 1 Hz resolution
! Sweep frequency
! Buffer fill status