Comtech EF Data CDM-Qx, Инструкция по установке и эксплуатации

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CDM-Qx Satellite Modem Revision 6
Remote Control MN/CDMQx.IOM
Parameter
Type
Command
(Instruction
Code and
qualifier)
Arguments for
Command or
Response to
Query
Description of Arguments
Response to
Command
(Target to
Controller)
Query
(Instruction
Code and
Qualifier)
Response to
query
(Target to
Controller)
Retrieved next 5
unread Stored
Statistics
(Modem Only) N/A 130 bytes Query only
Unit returns the oldest 5 Stored Statistics, which have not yet been
read over the remote control. Reply format:
{CR}Sub-body{CR}Sub-body{CR}Sub-body{CR}Sub-
body{CR}Sub-body, where Sub-body=
AA.ABB.BC.CD.Dddmmyyhhmmss,
AA.A Minimum Eb/No during sample period
BB.B=Average Eb/No during sample period
C.C=Max. TX Power Level Increase during sample period
D.D=Average TX Power Level during sample period
ddmmyyhhmmss=date/time stamp
If there are no new events, the unit replies with RNS* If there are
less than 5 statistics to be retrieved, the remaining positions are
padded with zeros. N/A RNS? RNS={CR}
AA.ABB.BC.CD.Ddd
mmyyhhmmss{CR}
AA.ABB.BC.CD.Ddd
mmyyhhmmss{CR}
AA.ABB.BC.CD.Ddd
mmyyhhmmss{CR}
AA.ABB.BC.CD.Ddd
mmyyhhmmss{CR}
AA.ABB.BC.CD.Ddd
mmyyhhmmss
(see description of
arguments)
RX Eb/No N/A 3 bytes Query only
Unit returns the value of Eb/No, between 0 and 16 dB, Resolution
0.1 dB.
Returns 99.9 if demod is unlocked.
Example: EBN=12.3 (Eb/No=12.3 dB)
For values greater than 16.0 dB, the reply will be: EBN=+016 N/A EBN? EBN=xxxx
(see description of
arguments)
RX Signal Level N/A 4 bytes
Query Only
Unit returns the value of the RX signal Level, in dBm, between –20
and –99 dBm, in the form: ccxx, where:
Cc=code
GT=Greater Than
LT=Less Than
= is equal to
xx=value (the ‘-‘ sign is implied)
Example:
RSL=LT99 (RX signal level is less than –99 dBm)
RSL===41 (RX signal level is equal to –41 dBm) N/A RSL? RSL=ccxx
(see description of
arguments)
RX BER N/A 5 bytes Query only
Unit returns the value of the estimated corrected BER in the form
a.b x 10
-c
. First 3 bytes are the value. Last 2 bytes are the
exponent. Returns 99999 if the demodulator is unlocked.
Example: BER=4.8E3 (BER = 4.8 x 10
-3
)
N/A BER? BER=a.bEc
(see description of
arguments)
C-30