ADCP-50-304 • Issue 19 • June 1999 • Section 7: Operation

6.24 Request Super Chassis Command (SC Command)

The SC (Super Chassis) command is a quick-switch feature used by the remote control device (terminal) to simultaneously select multiple chassis. This command is normally used in conjunction with a subsequent AB or AL command to perform AB switching and/or to enable alarm reporting after the chassis are selected. All chassis selected by the SC command, have their status response “silenced”. That is, status is not provided by any chassis selected as a result of the SC command. All chassis specified for selection in the command become activated immediately upon receiving the SC command.

Note: Only the AB, AL and IN commands are valid commands associated with the SC command.

For example, when the command “SC,00,0l,02,04” is issued, chassis numbers (chassis identifiers) 00, 01, 02 and 04 are selected. Similarly, if the command “SC,ALL” is issued, all chassis in the system are immediately selected and all status responses are silenced. Each chassis specified by the SC command operates independently from all other chassis in the system.

All chassis in the system not selected by the SC command are de-selected.

Table 7-9describes the syntax for the command string parameters and defines the operations performed by the SC command. Examples of the valid subsequent commands AB and AL are also shown.

Table 7-9. Request Super Chassis, SC Command String Parameters and Definitions

 

COMMAND STRING

 

OPERATION

PARAMETERS

DEFINITIONS OR COMMENTS

Select Chassis and

SC ,x ,x,x

Used in conjunction with the AB, IN and AL commands to

Execute Command

 

cause multiple chassis operations.

 

 

Where: SC — Select super chassis.

 

 

x — Chassis address number. Range 00 through

 

 

07 and ALL are valid.

 

 

Any number of chassis may be selected. Subsequent com-

 

SC,ALL

mands cause operations on the selected chassis’ modules.

 

Select all chassis.

 

 

Request to Switch

AB ,w,x,y,z#

Refer to Request to Switch Module definitions listed in

Modules

 

Table 7-8.

 

 

Where: AB - Indicates a switch request.

 

 

w = namslot

 

 

x = numslot

 

 

y = numskip

 

 

z = action (0, 1, or 2)

 

 

# — Execute immediately

 

 

 

Page 7-22

© 1999, ADC Telecommunications, Inc.