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Comtech EF Data CDM-625 User Manual

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CDM-625 Advanced Satellite Modem

Revision 15

Appendix D

MN-CDM625

D–18

Parameter

Type

Command

(Instruction

& Qualifier)

Number of

Arguments

Description of Arguments

Response to

Command

Query

(Instruction &

Qualifier)

Response to

Query

Transmit

ESC Type

TET=

1 byte, 0 or 1 Command or Query. (IDR parameter)

IDR ESC Type in the form x, where:

0=64k data channel

1=2 Audio channels

TET=

TET?

TET*

TET#

TET?

TET=x

(see Description of

Arguments)

TX LO

Frequency

TLO=

6 bytes

Command or Query.

Tx LO frequency information in the form xxxxxs, where:

xxxxx is the LO frequency, 3000 through 65000 MHz or 00000 (OFF)

s is the sign for the MIX

Terminal Frequency = LO ± TFQ (see below)
Example: TLO=12000+ (BUC LO is 12GHz, low-side mix)

TLO=

TLO?

TLO*

TLO#

TLO?

TLO=xxxxxs

(see Description of

Arguments)

Tx Satellite

(Terminal)

Frequency

N/A

10 bytes

Query only.

Terminal (aka satellite) Tx Frequency, which is the frequency transmitted to the satellite.

Resolution=100 Hz

Returns 00000.0000 if LO is zero
Example: TTF=11650.2249

N/A

TTF?

TTF=xxxxx.xxxx

(see Description of

Arguments)

Tx

Information

Rate

N/A

9 bytes,

numeric

Query only.

This command allows remote access to the Aggregate Tx Information rate in the form: ddddd.ddd

TIR?

TIR=

TIR*

TIR#

TIR?

TIR=ddddd.ddd

(see Description of

Arguments)

Tx Sub-Mux

IP

Information

Rate

N/A

9 bytes,

numeric

Query only.

This command allows remote access to the IP portion of the Tx Information rate in the form: ddddd.ddd

TMI?

TMI=

TMI*

TMI#

TMI?

TMI=ddddd.ddd

(see Description of

Arguments)