Extron Electronics DMP 128 User Guide - Manual (Page 177)

selecting Mix-points
Mix-points are controlled by their address. Each mix-point in figure 94 has an individual
address selected and controlled using SIS commands. (A mix-point contains a level
control and a routing control that mutes or unmutes the signal path from the input
mix-point to the output.)
For example, to view the current status of the input 1 to output 1 mix-point
(SIS address:
20000 ) enter:
E M X6) *AU } or E M20000*AU }
The response from the DMP 128 is:
DsM20000*1AU } if the mix-point is muted, or
E M20000*0AU ] if the mix-point is unmuted, connecting the mix-point input with its
output.
To select a mix-point to view its current signal level setting:
E G X6) AU } .
If looking at the same input 1 to output 1 mix-point, enter:
E G20000AU } or
where 20000 is the mix-point. The response is:
DsG20000*1948 ] .
Using the table 2 cross-reference on page 149, the mix-point is set to -10 dB.
signal routing
Mix-point routing is achieved by unmuting the mix-point. To select a mix-point, use the
tables starting on page 175 to find a specific mix-point. In this example, input 1 is routed
to output 1.
Connecting a mix-point input to an output requires the mix-point be unmuted. Using the
formula from above where X6) is the mix-point, to unmute any processor or mix-point use
the command:
E M X6) *0AU } .
The input 1 to output 1 mix-point address according to table 3 on page 175 is 20000
making the correct formula
E
M20000*0AU } . This routes input 1 to output 1.
To break the signal, use the mute formula:
E M X6) *1AU } or E M20000*1AU } .
In this manner any mix-point can be selected and a connection made between its input
and output, or if a connection has already been made, it can be broken.
DMP 128 • Reference Information 171