Comtech EF Data CDM-625 Installation And Operation Manual page 487

CDM-625 Advanced Satellite Modem
Appendix D
Command
Parameter Number of
(Instruction
Type Arguments
& Qualifier)
Tx Clock TCI= 1 byte, value 0
Invert or 1
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 Drop DTS= 3 bytes
Timeslot
Tx Ternary TTC= 1 byte, value
Code of 0 thru 3
Transmit TBA= 4 bytes, each
Backward a value of 0
Alarms thru 2
Enable
Description of Arguments
Command or Query.
Invert Transmit Data Clock in the form x, where:
0=Normal
1=Inverted
Command or Query. (Audio/IDR parameter)
Tx Audio Volume control in the form aabb, where:
aa=Tx 1 volume control in dB, valid values are -6, -4, -2, +0, +2, +4, +6, +8;
bb=Tx 2 volume control in dB, valid values are -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 in the form x, 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 in the form x, where:
0=T1–D4
1=T1–ESF
2=E1–CCS
3=E1–CAS
Command or Query. (Drop parameter)
(Note different format between command and query.)
Command format: DTS=xxy, where:
xx = Channel 01 through 24
y = timeslot: 0-9, A=10, B=11, C=12, D=13,...V=31
Command or Query. (G.703 parameter)
Tx Ternary Code in the form x, where:
0=AMI
1=B8ZS
2=B6ZS
3=HDB3
Example: TTC=1 (selects B8ZS)
Command or Query. (IDR parameter)
Transmit Backward Alarm enable in the form xxxx, where:
0=Disable
1=Enable Internal (S/W)
2=Enable External (H/W)
Example: TBA=0120
D–17
Revision 13
MN-CDM625
Query
Response to Response to
(Instruction &
Command
Qualifier)
TCI= TCI? TCI=x
TCI?
TCI* (see Description of
TCI# Arguments)
TVL= TVL? TVL=aabb
TVL?
TVL* (see Description of
TVL# Arguments)
TTA= TTA? TTA=x
TTA?
TTA* (see Description of
TTA# Arguments)
DTY= DTY? DTY=x
DTY?
DTY* (see Description of
DTY# Arguments)
DTS= DTS? DTS=yyyyyyyyyyyyy
DTS? yyyyyyyyyyy
DTS* indicating all 24 Drop
DTS# timeslots values
associated with the
24 Tx Satellite
channels.
TTC= TTC? TTC=x
TTC?
TTC* (see Description of
TTC# Arguments)
TBA= TBA? TBA=xxxx
TBA?
TBA* Position indicates
TBA# backward alarm
numbers: 1234
Query