Comtech EF Data CDM-625A Installation And Operation Manual page 337

CDM-625A Advanced Satellite Modem
Serial-based Remote Product Management
Command
Parameter Number of
(Instruction
Type Arguments
& Qualifier)
...CnC-APC state
(cont.)
CnC-APC Max APL= 3 bytes
Power Level
Increase
CnC-APC Home AHS= 12 bytes
State
ACM Remote N/A 4 bytes
Signal Noise Ratio
ACM Local Signal N/A 4 bytes
Noise Ratio
Uncorrected BER N/A 7 or 8 bytes
Description of Arguments
17 = Distant End ReBalance failed
18 = Distant End NoResponse
19 = Fail-Calculate Mismatch
20 = CnC Ratio too high
21 = Please run again
22 = APC is active
23 = Local margin too low
24 = Distant margin too low
25 = Rx Data Rate<64kbps
26 = Tx Data Rate<64kbps
27 = Local RSL too low
28 = Distant RSL too low
Command or Query.
CnC-APC maximum power level increase in the form x.x, range from 0.0 to 9.9 dB, limited by Tx power level.
Example: APL=3.9 (APC max power level increase is 3.9 dB.)
Command or Query.
Command is only for Offline unit in Redundancy system, sent by 1:N switch or Online unit in 1:1 system.
Returns CnC-APC home state parameters in the form a,bbb,cc,ddd, where:
a = APC state. (1 = APC is active, 0 = APC is not active)
bbb = APC home state Tx power, in 0.1dB. (minus sign assumed)
cc = APC home state max power level increase, in 0.1 dB.
ddd = APC Tx power threshold, in 0.1 dB. (minus sign assumed)
Example: AHS=1,100,60,085 (APC is active, home state power is -10.0 dB, home state max power level increase is 6.0
dB, power threshold is -8.5 dB)
Query only.
Returns the value of SNR of the remote demod in the form xx.x, where:
99.9 = Demod is unlocked.
xx.x = Not in IP-ACM.
Example: RSN=12.4
Query only.
Unit returns the value of Local Signal Noise Ratio in the form xx.x, where:
99.9 = demod is unlocked.
xx.x = Not in IP-ACM, Resolution 0.1 dB.
Example: SNR=12.3 (selects SNR=12.3 dB)
Query only.
Units returns the value of the uncorrected BER.
LT = less than
GT = greater than
Returns 9999999 if the demodulator is unlocked or uncorrected BER data is unavailable.
Example: BER=4.3E-02 BER=GT1.0E-1
8–55
Revision 0
MN-CDM625A
Query
Response to
(Instruction & Response to Query
Command
Qualifier)
APL= APL? APL=xx.x
APL? (see Description of
APL* Arguments)
APL#
AHS= AHS? AHS=a,bbb,cc,ddd (see
AHS? Description of
AHS* Arguments)
AHS#
N/A RSN? RSN=xx.x
(see Description of
Arguments)
N/A SNR? SNR=xx.x
(see Description of
Arguments)
N/A RBE? RBE=xxxxxxxx
(See Description of
Arguments)