Comtech EF Data CDM-625 Installation And Operation Manual page 274

CDM-625 Advanced Satellite Modem
Remote Control
Command
Parameter Number of
(Instruction
Type Arguments
& Qualifier)
Tx Audio TVL= 4 bytes
Volume
Control
Transmit TTA= 1 byte, 0 or 1
Terrestrial
Alarm Mask
Drop Type DTY= 1 byte, value of
0 thru 3
Tx Ternary TTC= 1 byte, value of
Code 0 thru 3
Transmit TBA= 4 bytes, each a
Backward value of 0 thru
Alarms 2
Enable
Description of Arguments
Command or Query. (Audio/IDR parameter)
Tx Audio Volume control, in the form aabb, where:
aa=Tx 1 volume control in dB, values defined below.
bb=Tx 2 volume control in dB, values defined below.
Valid values: -6, -4, -2, +0, +2, +4, +6, +8
Example: TVL= -2+4 (sets Tx 1 to 2 dB and Tx 2 to +4 dB)
Command or Query. (DROP parameter)
Transmit terrestrial Alarm Mask conditions, where:
0=Alarm is active (unmasked).
1=Alarm is masked.
Example: TTA=1 (masks an alarm).
Command or Query. (DROP/D&I++/QDI parameter)
Drop Type where:
0=T1–D4
1=T1–ESF
2=E1–CCS
3=E1–CAS
Command or Query. (G.703 parameter)
Tx Ternary Code, where:
0=AMI
1=B8ZS
2=B6ZS
3=HDB3
Example: TTC=1 (selects B8ZS)
Command or Query. (IDR parameter)
Transmit Backward Alarm enable:
0=Disable
1=Enable Internal (S/W)
2=Enable External (H/W)
Example: TBA=0120
D–14
Revision 1
MN-0000036 (Ref MN/CDM625.IOM)
Query
Response to
(Instruction Response to Query
Command
& Qualifier)
TVL= TVL? TVL=aabb
TVL? (see description of
arguments)
TVL*
TVL#
TTA= TTA? TTA=x
TTA? (see description of
arguments)
TTA*
TTA#
DTY= DTY? DTY=x
DTY? (see description of
arguments)
DTY*
DTY#
TTC= TTC? TTC=x
TTC? (see description of
arguments)
TTC*
TTC#
TBA= TBA? TBA=xxxx
TBA?
TBA* Position indicates
backward alarm
TBA#
numbers: 1234