Cobalt Digital COMPASS 9284 3G_HD_SD-SDI 8X4 Video Routing Switch - Manual (Page 21)

9284-OM (V1.3) 9284 PRODUCT MANUAL 1-17
Introduction
9284 Functional Description
Prior to version 10 software, this command was only useful on those router
levels that allow an input to be connected to at most one output, and status
commands were only sent for such levels. Beginning with version 10
software, a response is generated for all outputs connected to the specified
input on any level, regardless of how many outputs that might be, and
regardless of whether the level allows only one output connection or many
output connections.
For example, the command:
**N4!!
to a router might have the following commands as its Response:
** X12,4,1 X12,4,2 X12,4,3 X13,4,4 Y23,4 !!
showing that input 4 connects to outputs (12,12,12,13) on levels 1-4, and to
output 23 on levels 1- 4.
Note that a “V” command is never used in the response, unlike an “O” request
described above. This is because the “V” command specifies inputs
connected to an output, not outputs connected to an input.
“CLEAR”: Clear Matrix
The command “CLEAR” requests that the switch matrix be cleared so that all
outputs are disconnected from inputs (in routers where this is possible) or else
all outputs at all levels have input #1 as their source (when disconnecting is
not possible). If output locks are supported, all output locks are removed by
this command. If input security is supported, all input secures are removed by
this command. This command can take several seconds to execute (depending
on the size of the switch matrix), and therefore the OK response at the end of
the command string could be quite late. In order to help ensure that this
command isn't accidentally executed, it requires four additional characters
following the “C” character, to spell out the word “CLEAR” in full.
For example, the command:
**CLEAR!!
would clear the matrix, and when finished, the following response would be
generated:
** OK !!
From Syntax Description
Host CLEAR Ask router to clear all router outputs.
Router (None) All outputs are unlocked, input
secures are unsecured, and all
outputs are either disconnected or
connected to input 1.