Comtech EF Data CDM-425 Installation And Operation Manual page 381

Command
Number of
Parameter (Instruction
Arguments
& Qualifier)
CnC-APC APL= 3 bytes
Max Power
Level
Increase
CnC-APC AHS= 12 bytes
Home State
ACM Remote N/A 4 bytes
Signal Noise
Ratio
ACM Local N/A 4 bytes
Signal Noise
Ratio
Uncorrected N/A 7 or 8 bytes
BER
Serial Remote Control
Description of Arguments
Command or Query.
CnC-APC maximum power level increase in the form x.x, range from 0.0 thru 9.9 dB, limited by Tx power
level.
EXAMPLE: <0/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: <0/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 ACM.
EXAMPLE: <0/RSN? >0/RSN=12.4
Query only.
Returns the value of Local Signal Noise Ratio in the form xx.x, where:
99.9=demod is unlocked.
xx.x=Not in ACM (resolution=0.1 dB)
EXAMPLE: <0/SNR? >0/SNR=12.3 (indicates 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: <0/BER? >0/BER=4.3E-02 or >0/BER=GT1.0E-1
8–57
CDM-425 Advanced Satellite Modem
Revision 0
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
AHS? (see 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)
MN-CDM-425