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2 redundancy commands and queries – Comtech EF Data CRS-500 User Manual

Page 170

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CRS-500 1:N Redundancy System

Revision 2

Serial-based Remote Product Management

MN-CRS500

9–10

In the tables that follow, the following codes are used in the ‘Response to Command’ column (per Sect. 9.4.2.5):

= Message ok

# Message OK, but only permitted in Remote mode

? Received ok, but invalid arguments were found.

~ Time out of a pass-through message

^ Message ok, , but not permitted in Current mode

! Unknown command

9.5.2 Redundancy Commands and Queries

Parameter Type

Command

(Code and

qualifier)

Arguments for

Command or

Response to

Query

Description of arguments

(Note that all arguments are ASCII numeric codes, that

is, ASCII codes between 48 and 57)

Response to Command

(Target to controller)

Query

(Code and

qualifier)

Response to query

(Target to controller)

Audio Alarm

Mask

AAM=

1 byte, numerical

Command or Query.

Sets or returns the Audio alarm mask in the form x, where:

0 = no faults masked (audio enabled in response to any fault)

1 = Switch faults masked

2 = Modem faults masked

3 = All faults masked (audio never enabled)

AAM=

AAM?

AAM*

AAM?

AAM=x

(see description of

arguments)

Configure Active

Modems

ACT=

10 bytes,

numerical

Command or Query.

Sets or returns the active state of all 10 Traffic Modems in

the form x, where:

0 = de-activate Traffic Modem (except if in back-up)

1 = activate Traffic Modem

Note: Redundant modems are always active.

ACT=

ACT?

ACT*

ACT?

ACT=xxxxxxxxxx

(see description of

arguments)

Active Modem

Status

N/A

10 bytes,

numerical

Query only.

Returns the state of all 10 Traffic Modems in the form x,

where:

0 = TMI not present. Modem cannot be activated.

1 = TMI present, but modem not activated.

2 = TMI present, modem activated and responding.

3 = TMI present, modem activated but not responding.

N/A

AMQ?

AMQ=xxxxxxxxxx

(see description of

arguments)

Bridged or

Backed-up

Modem Number

(Redundant

Modem 1)

BB1=

3 bytes, numerical Command or Query.

Sets or returns the bridge/back-up state for RM1, followed

by the selected TM to be acted on, in the form rxyy where:

x is: 0 = bridge,

1 = back-up (only possible when in manual mode)

yy is:

01-10 for modem number in 1:N mode

BB1=

BB1?

BB1*

BB1?

BB1=xyy

(see description of

arguments)