Grass Valley Apex v.2.0 - Manual (Page 77)

APEX — Installation and Service Manual 79
Expanded (Multi-Chassis) Systems
Expanded (Multi-Chassis) Systems
Standard Apex Models
With a standard Apex chassis, 256 x 256 frames are connected to form
512 x 512, 768 x 768, or 1024 x 1024 systems. The frames are connected by
four-meter (13 ft.) InfiniBand cables.
Note The InfiniBand cables cannot be longer than four meters (13 feet.)
Figure 29 on page 81 shows a fully expanded (1024 x 1024) system with 6
InfiniBand cables. Smaller systems will require fewer cables; the connector
numbering scheme remains the same as that shown.
Expanded Apex systems, with more than one chassis, require RG-59 or
RG-6 coaxial connection.For example, Master Clock connections in addi-
tion to the InfiniBand cables. Each group of four Master Clock BNC connec-
tors correspond to a Matrix board. The three Master Clock Out connectors
are functionally identical, that is, they can be connected to any chassis. See
Figure 30 on page 81 .
If two or more frames of a multi-frame standard Apex system must be
located more than four meters apart, model APX-FBR-EXT Apex Fiber
Extenders must be installed at each location. See Fiber Extenders (Standard
Apex Only)
on page 85 .
Apex Plus Models
Apex Plus frames are identified by having either input boards only or
output boards only. These systems can be expanded to 2048 x 2048 using
eight frames.
Systems may be asymmetrical if desired (having an unequal number of
inputs and outputs).
Figure 31 on page 82 shows a fully expanded (2048 x 2048) system with 16
InfiniBand cables. Smaller systems will require fewer cables; the connector
numbering scheme remains the same as that shown.
Redundant InfiniBand cables (not shown in the drawings) can be added if
each chassis is equipped with a secondary matrix board. In this case the
Expansion B connectors would be used; the connector numbers would be
the same as those shown.
Expanded Apex Plus systems require RG-59 or RG-6 coaxial Master Clock
connections in addition to the InfiniBand cables. Each group of four Master
Clock BNC connectors correspond to a Matrix board. The three Master