Comtech EF Data CDM-550T - Manual (Page 63)

CDM-550T Satellite Modem Revision 3
Front Panel Operation MN/CDM550T.IOM
6.2.5 SELECT: INFO (Information)
Select ID, TX, RX, BUFF, EDMAC, REMCONT, MASK, or MISC using the [
←] [→] arrow
keys, then press ENTER.
These screens display information on the current configuration of the unit. Depending on the
choice selected, one of the following screens will be displayed:
INFO:ID TX RX BUFF EDMAC
REMCONT MASK MISC(ENTER)
6.2.5.1 (INFO) ID (Circuit ID)
CIRCUIT ID: (ENTER)
THIS IS A TEST MESSAGE
This displays the user-defined Circuit ID string, which is entered via the UTIL, ID screen. To
return to the previous menu, press ENTER.
6.2.5.2 (INFO) TX (Transmit information)
The information displayed here is as follows:
Tx:140.0000 2048.000 VIT
Q R1/2 S LOP -20.0 ON I
Top line:
Transmit Frequency and Data Rate
FEC Encoder type (VIT = Viterbi, SEQ = Sequential, VRS=Viterbi + Reed-
Solomon, SRS=Sequential + Reed Solomon, TUR = Turbo, UNC = uncoded)
Bottom line:
Modulation type (Q = QPSK, O= OQPSK, B = BPSK)
Code Rate (shows blank in uncoded mode)
Scrambler state (S = Scrambler on, N = Scrambler off)
Clocking Mode (INT = internal, EXT = external, LOP = loop)
Output power level
Transmit output state (ON = on , OFF = off, EOF = external off)
TSI state (I = Transmit Spectral Inversion on, N = off)
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