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Command "a": interconnection digital input 2 to digital output 1
Description: Via the command
a
the
RCM
tells the
RCS
of class
m
to switch the signal of the second
input (
DIGITAL IN 2
) to the first digital output
DIGITAL OUT
1
.
The
RCS
executes the command and sends the acknowledge which informs via the status
register about the auto switch status (enabled or disabled) and if there is a sync signal on
DIGITAL IN 2
or not.
These conditions together determine the behavior of the
RCS
.
Example:
The command
a
is sent to the second
RCS
.
Message
<STX> <TYPE> <ADDRH> <ADDRL>
<Body>
<STATH>
<STATL
<CHKH>
<CHKL> <ETX>
m
0
2
a
3
0
Let's assume the second input is provided with a signal, so the actual routing will be the
target routing, no matter of the autoswitch status. For calculating purposes, the bits refer-
ing to autoswitch, the first input and the second output will be set to 1. Thus the status
register looks like this:
Status
Auto Switch
Out2
true
Out1
true
Reserved
Out2
target
Out1
target
Prsnt2
Prsnt1
1
1
1
0
1
1
1
1
Thus the acknowledge sent from the second RCS to the master reads:
Acknowledge <STX> <TYPE> <ADDRH> <ADDRL>
<Body>
<STATH>
<STATL
<CHKH>
<CHKL> <ETX>
m
0
2
a
e
f
f
b
Result:
The actual routing of
DIGITAL OUT 1
is the target routing, and the signal present on
DIGITAL INPUT 2
is displayed on the projection module connected to
DIGITAL OUT 1
.
Содержание Hermes DXD
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