Comtech EF Data CDM-625 - Manual (Page 520)

CDM-625 Advanced Satellite Modem Revision 15
Appendix D MN-CDM625
D–56
Parameter
Type
Command
(Instruction
& Qualifier)
Number of
Arguments
Description of Arguments
Response to
Command
Query
(Instruction &
Qualifier)
Response to
Query
CnC-APC
Home State
AHS= 12 bytes 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)
AHS=
AHS?
AHS*
AHS#
AHS? AHS=a,bbb,cc,ddd
(see Description of
Arguments)
ACM Remote
Signal Noise
Ratio
N/A 4 bytes 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
N/A RSN? RSN=xx.x
(see Description of
Arguments)
ACM Local
Signal Noise
Ratio
N/A 4 bytes 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)
N/A SNR? SNR=xx.x
(see Description of
Arguments)
Uncorrected
BER
N/A 7 or 8 bytes 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
N/A RBE? RBE=xxxxxxxx
(See Description of
Arguments)