Selecting Mix-Points; Signal Routing - Extron electronics DMP 128 User Manual

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:
E X6)
M *AU
The response from the DMP 128 is:
DsM20000*1AU
E
M20000*0AU
output.
To select a mix-point to view its current signal level setting:
E X6)
G AU
If looking at the same input 1 to output 1 mix-point, enter:
E
G20000AU
where 20000 is the mix-point. The response is:
DsG20000*1948
Using the

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 X6)
M *0AU
The input 1 to output 1 mix-point address according to table 3 on page 175 is 20000
making the correct formula
To break the signal, use the mute formula:
E X6)
M *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.
) enter:
20000
} E }
or M20000*AU
}
if the mix-point is muted, or
]
if the mix-point is unmuted, connecting the mix-point input with its
}
.
}
or
]
.
table 2 cross-reference on page 149, the mix-point is set to -10 dB.
}
.
E
M20000*0AU
} E
or M20000*1AU
}
. This routes input 1 to output 1.
}
.
DMP 128 • Reference Information 171