Comtech EF Data CDM-625 Installation And Operation Manual page 508

CDM-625 Advanced Satellite Modem
Appendix D
Command
Parameter Number of
(Instruction
Type Arguments
& Qualifier)
BERT 10E-3 BKE= 1 byte, value of
Error Insert 0 or 1
BERT Restart BRM= None
Monitor
BERT Result N/A 7 bytes,
in bit errors numeric
BERT Result N/A 6 bytes
in average
BER
ACM ACM= 4 bytes
parameters
Forced FRB= None
Reboot
Carrier ID CAI= 1 byte, value
of 0 thru 1
Description of Arguments
Command or Query.
Inserts 10E-3 BER in the form x, where:
x = 0 (Off) or 1 (On)
Example: BKE=1
Command only.
Example: BRM=
Note: This command takes no arguments.
Query only.
BERT monitor results in bit errors. If bit errors exceed 9999999, then BRE=9999999.
Query only
Returns the value of the average BER in the form a.b x 10-c. First 3 bytes are the value. Byte 5 is the
exponent. Last byte is the indicator of Sync Loss. A '*' in last byte means there was a loss of pattern
synchronization since last restart, but now is synchronized. A '_' (space) in last byte means pattern
synchronization is achieved.
Returns 999999 if there's no sync in BERT monitor.
Example 1: BRR=2.8E7 (BER is 2.8 x 10 , and in sync)
-7
Example 2: BRR=3.4E5* (BER is 3.4 x 10 , and there was a Sync Loss)
-5
Command or Query.
Defines ACM operating parameters in the form mMAT, where:
m=Minimum ModCod, range is 0 to 9, and A (for ModCod=10) or B (for ModeCod=11)
M=Maximum ModCod, range is 0 to 9, and A (for ModCod=10) or B (for ModeCod=11)
A= Defines action on remote demod unlock (0=go to minimum Tx ModCod, 1=maintain Tx ModCod)
T=Target Eb/No Margin, from 0 to 9 that is two times of the Eb/No in dB (from 0.0dB to 4.5dB).
Example: ACM=0B12
(Sets min ModCod=0, max ModCod=11, maintain Tx ModCod when remote demod unlocks,
sets Target Eb/No at 1.0dB.)
Command only.
Force a hard reset of the unit in 5 seconds.
Command or Query.
Carrier ID Enable/Disable in the form x, where:
0 = Disabled
1 = Enabled
D–38
Revision 13
MN-CDM625
Query
Response to Response to
(Instruction &
Command
Qualifier)
BKE= BKE? BKE=x
BKE? (see Description of
BKE# Arguments)
BRM= N/A N/A
N/A BRE? BRE=xxxxxxx
N/A BRR? BRR=a.bEcx
ACM= ACM? ACM=mMAT
ACM? (see Description of
ACM# Arguments)
FRB= N/A N/A
FRB?
FRB*
FRB#
CAI= CAI? CAI =x
CAI? (see Description of
CAI * Arguments)
CAI #
Query