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13 redundancy control – Comtech EF Data CDM-760 User Manual

Page 276

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Serial-based Remote Product Management

Revision 2

CDM-760 Advanced High-Speed Trunking Modem

MN-CDM760

8–42

8.5.13 Redundancy Control

Parameter

Type

Command

(Instruction

& Qualifier)

Number of

Arguments

Description of Arguments

Response to

Command

Query

(Instruction &

Qualifier)

Response to Query

1:1 Operational

Mode

ASW

1 byte, value

of 0 or 1

Command or Query.

Sets or returns 1:1 operational mode in the form x, where:

0 = Unit is in Manual mode

1 = Unit is in Auto mode.

NOTE: In Manual Mode, all fault relays are forced to the non-faulted condition. This allows an online unit

to be configured without undesired switchover to a backup unit (Changing Rx frequency would normally

cause the online unit to unlock and a switchover to the backup modem would occur).

ASW=

ASW?

ASW *

ASW #

ASW?

ASW=x

(see description

of arguments)

1:1 Force Unit

Offline

FSW =

1

Command only.

This command takes no arguments. In a 1:1 switch environment, this command forces an online unit

offline. If the unit is offline, then no action is taken.

NOTES:

1) The 1:1 redundancy system must be installed!

2) Both online and offline units must be in Manual Mode for this command to function.

3) If the 1:1 redundancy system is not installed, then the command will return FSW?

4) If the unit is offline, then the command will return FSW?

EXAMPLE: <0/FSW=

FSW=

FSW?

FSW?

FSW=

1:1

Redundancy

Unit online or

offline

N/A

0

Query only.

Return 1:1 online/offline status in the form x, where:

0 = Unit is offline

1 = Unit is online

EXAMPLE: <0/RED?

>0000/RED=1 (indicates the unit is online)

N/A

RED?

RED=x

1:N

Redundancy

Enable

R1N =

1 byte, value

of 0 or 1

Command or Query.

Sets or returns 1:N operational mode in the form x, where:

0 = Unit is not enabled for 1:N switch operation.

1 = Unit is enabled for 1:N switch operation.

EXAMPLE: <0/R1N=1 (indicates the unit is enabled for 1:N)

R1N=

R1N?

R1N *

R1N #

R1N?

R1N=x

(see description

of arguments)

1:1

Redundancy

Switch

Available

N/A

1 byte, value

of 0 or 1

Query only.

Returns 1:1 switch status in the form x, where:

0 = Unit is not connected to a 1:1 switch

1 = Unit is connected to a 1:1 switch

EXAMPLE: <0/R11?

>0000/R11=0 (indicates the unit is not connected to a 1:1 switch)

N/A

R11?

R11=x