GRASS VALLEY Concerto, Instruction Manual

Page: 96 / 174

96 Concerto — Instruction Manual
Section 2 — Installation
Expanded Audio System Monitoring
Expanded Audio systems require external looped cables between the two
frames for monitoring. You need to connect a cable from a
Monitor Out
con-
nector on a backplane in the base frame to a
Monitor In
connector on a back-
plane in the expansion frame. And a second cable from the
Monitor Out
connector on the same backplane on the expansion frame to the
Monitor In
connector on the backplane in the base frame. You can use any of the avail-
able connector types and any of the available backplanes.
Figure 53 shows
an expanded 256x256 system, using the terminal block connectors on the
backplanes in slots 1 and 5. The connectors could be used on any of the
backplanes. Since all Outputs are available to all monitor connectors on
each frame it does not matter which two backplanes are used as long as it
is one in the base frame and one in the expansion frame. In
Figure 53 the
recommended cabling is shown.
One Destination signal is available to all the
Monitor Out
connectors in the
configured matrix. All the backplanes have at least one
Monitor Out
con-
nector. Two of the AES Audio backplanes have two
Monitor Out
connectors.
On the AES Terminal Block backplane there is a terminal block
Monitor Out
connector and a BNC Monitor Out connector and on the AES 50 pin D back-
plane there is a 9 pin D
Monitor Out
connector and a BNC
Monitor Out
con-
nector. See Table 37 on page 86 for the 9 pin D connector pinouts used on
the 50 pin D backplanes. See Figure 46 on page 88 for the terminal block
connector pinouts used on the terminal block backplanes. For more infor-
mation on configured matrix sizes and number of Mon Out connectors per
matrix see
Expanded Audio Monitor Configuration (7 RU and 8 RU Frames)
on
page 67 .