Comtech EF Data CDM-625A User Manual

Page 327

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CDM-625A Advanced Satellite Modem

MN-CDM625A

Serial-based Remote Product Management

Revision 3

8–15

Parameter

Type

Command

(Instruction

& Qualifier)

Number of

Arguments

Description of Arguments

Response to

Command

Query

(Instruction &

Qualifier)

Response to Query

Tx Carrier

State

TXO=

1 byte, 0 thru 9

Command or Query.

Sets or returns Tx Carrier State in the form x, where:

0=OFF due to front panel or remote control command

1=ON

2=RTI (receive/transmit inhibit), timeout=10 seconds

3=OFF due to ext H/W Tx Carrier- Off control *

4=OFF due to BUC or High-Stability Ref warm-up *

5=Carrier controlled by STDMA Controller *

6=RTI (receive/transmit inhibit), timeout=1 second

7=RTI (receive/transmit inhibit), timeout=2 seconds

8=RTI (receive/transmit inhibit), timeout=4 seconds

9=RTI (receive/transmit inhibit), timeout=7 seconds

Note: Arguments indicated with a * are status-only. They are not valid as a command, and are not indicated in MGC?

response.

Example: <0/TXO=1 (Tx Carrier ON)

TXO=

TXO?

TXO*

TXO#

TXO?

TXO=x

(see Description of

Arguments)

Tx Alpha

TXA=

1 byte, 0 thru 5

Command or Query.

Sets or returns Tx Alpha Filter Rolloff Factor in the form x, where:

0=0.35

1=0.25

2=0.20

3=0.15

4=0.10

5=0.05

Example: <0/TXA=0 (Tx filter rolloff factor is 0.35)

TXA=

TXA?

TXA#

TXA?

TXA=x

(see Description of

Arguments)

Power Level

Mode

(was AUPC

Enable)

AUP=

1 byte, 0 thru 3

Command or Query.

Sets or returns Power Level Mode in the form x, where:

0=MANUAL mode (AUPC disabled) – Normal power mode

1=AUPC enabled.

2=MANUAL-LOW – Low power mode (-65 to -20dBm) - external attenuator activated.

3=AUPC-LOW – AUPC enabled and external attenuator activated

Example: <0/AUP=1 (AUPC Enabled)

Notes:

1) EDMAC or D&I++, E1 D&I w/ccs or ESC++ framing must be selected for the AUPC feature to be available.

2) External 20dB Attenuator is a hardware option.

AUP=

AUP?

AUP*

AUP#

AUP?

AUP=x

(see Description of

Arguments)

AUPC

Parameters

APP=

6 bytes

Command or Query.

Sets or returns AUPC operating parameters in the form abc.cd, where:

a=Action on max. power condition: (0=do nothing, 1=generate Tx alarm)

b=Action on remote demod unlock: (0=go to nominal power, 1=go to max power)

c.c=Target Eb/No value, in dB, for remote demod from 0.0 thru 14.9:

Numbers above 9.9 use hex representation for the first character, i.e. 14.9 is coded as E.9.

d =Max increase in Tx Power permitted, in dB, from 0.0 thru 9.0

Example: <0/APP=015.67 (Sets no alarm, max power, 5.6 dB Target and 7 dB power increase.)

APP=

APP?

APP*

APP#

APP?

APP=abc.cd

(see Description of

Arguments)

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