Grass Valley Apex v.2.0 User Manual
Page 70

72
APEX — Installation and Service Manual
Section 3 — Installation
4.
Make sure all cards are all seated in their backplane sockets.
This should not normally be an issue since the boards are held in place
with locking extractors.
5.
On multi-chassis systems, InfiniBand
®
and Master Clock cables must
be used to connect the frames. The cables cannot be longer than four
meters, See Expanded (Multi-Chassis) Systems
.
Note
InfiniBand cables must be installed correctly to ensure proper system
operation. When a cable is mis-wired, it will not be automatically
detected by the system.
If two or more frames of a multi-frame standard Apex system must be
located more than four meters apart, 2 each model APX-FBR-EXT Apex
Fiber Extenders must be installed for each remote chassis. See Fiber
Extenders (Standard Apex Only)
.
6.
Connect the audio signal cables.
The 110 Ohm version of the switcher uses D connectors, with each
input/output using three pins: one for (+) positive, one for (-) negative
and one for Ground. A drawing of the pin numbering scheme is shown
at the bottom of
7.
Connect the appropriate house reference signal(s).
Each chassis must have a house video reference or an AES reference in
order for switches to occur on the proper audio frame boundary.
Factory default settings on the CX-34000 Control XPT board assume
that a video reference signal used to synchronize AES audio will be con-
nected to the VID REF A connector.
If there are two Matrix boards installed, they must both be connected to
the same reference signal, they will automatically operate in redundant
mode; i.e., if one board fails the other will become active and synchro-
nization maintained. For example, a video black burst signal used as an
AES reference would be looped through VID REF A and VID REF B and
terminated.
8.
Check the DIP switch settings on the CX-34000 Control Crosspoint
board. See CX-34000 Control Crosspoint Board Configuration
.
This board is used when the router is controlled through a crosspoint
bus connection (all present systems).
If redundant CX-34000 control crosspoint boards are used, the configu-
ration switches must match to ensure proper operation of the router.
9.
If output monitoring is required, refer to the installation instructions
starting on Output Monitoring
.