Grass Valley SMS-6000 Series - Manual (Page 125)

A-9
Responses
Responses
Acknowledge
Acknowledge is used as a no error response to some messages:
Errors
If an error is detected in any sequence prior to a (cr), the matrix replies
with:
Power Up
At power up or reset the matrix outputs a (cr) .P(cr) to inform a remote
computer that the matrix is now on-line.
Update
If any crosspoints are changed in the matrix, either by remote panels or the
remote control protocol, the matrix replies with an update message for
each crosspoint changed.
.A(cr)
.E(cr)
.U{level}{dest},{srce}(cr)