Apex Digital apex 10 Manuel de service télécharger pdf (Page 34)

36 APEX — Installation and Service Manual

Section 2 — Planning Guide

Expanded (Multi-Chassis) Systems

Standard Apex Models

With a standard Apex chassis, 256 x 256 frames can be 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 6 on page 38 shows a fully expanded (1024 x 1024) system with 6

InfiniBand expansion cables. Smaller systems will require fewer cables (see

Table 1 on page 38); the connector numbering scheme remains the same as

that shown for the large system. As shown in Figure 5, each group of four

InfiniBand Expansion connectors correspond to one MX-34000 Matrix

board.

Expanded Apex systems with more than one chassis require RG-59 or RG-6

Master Clock connections in addition to the InfiniBand cables. The three

Master Clock Out connectors are functionally identical, i.e., they can be

connected to any chassis. See

Figure 7 on page 38. As shown on Figure 5 on

page 35, each group of four Master Clock BNC connectors corresponds to

a Matrix board.

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 ordered for each remote chassis. Refer to

Fiber

Extenders (Standard Apex Only) on page 45.

Apex Plus Models

If a 2048 x 2048 system is required (or later expansion to that size is antici-

pated), the Apex Plus frame type is used. Apex Plus frames have either

input boards only or output boards only. For a 2048 x 2048 system, eight

Apex Plus frames would be needed: four with 512 inputs each, and four

with 512 outputs each. Systems may be asymmetrical if desired (having an

unequal number of inputs and outputs).

The illustration in Figure 8 shows a fully expanded (2048 x 2048) system

with 16 InfiniBand cables (optional redundant cables are not shown).

Smaller systems will require fewer cables; the connector numbering

scheme remains the same as that shown for the large system.

Note The InfiniBand cables cannot be longer than four meters (13 feet).

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Apex Digital apex 10 Manuel de service Page 34