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NFS2-3030/E Installation Manual — P/N 52544:N1 07/18/2014
Installation
Laying Out Equipment in Cabinet and Chassis
3.4 Laying Out Equipment in Cabinet and Chassis
The NFS2-3030 allows for flexible
system design. It mounts in a CAB-4
series backbox using either CHS-M3
or CA-2. Follow these guidelines
when deciding where to locate
equipment in the backbox. There are
four basic positions available on a
chassis; the number of layers that can
be mounted in each position depends
on the chassis model and the module
size.
CHS-M3
The CPU mounts in chassis CHS-M3
in the top row of the cabinet. The CPU
and its optional display occupy the left
half of the chassis (positions 1 and 2,
see Figure 3.2).
Positions 3 and 4 of CHS-M3 can hold
up to four layers of equipment
including option boards and
annunciators (door-mounted in front of CHS-M3). See Figure 3.4 for possible configurations of
these four layers.
The BMP-1 Blank Module Plate covers unused positions and also provides a location to door-
mount some option boards (see BMP-1 Product Installation Drawing for details).
CA-2
The CA-2 Audio Chassis assembly
includes hardware to mount an audio
command center installation in two rows
of a CAB-4 backbox. Equipment will be
located in the chassis as shown in
Figure 3.6. See Section 3.5.2, “Mounting
in the CA-2 Audio System Chassis” and
the CA-2 Installation Document.
Figure 3.2 Chassis CHS-M3
1
2
3
4
Four positions
on chassis
CHS-M3
Positions 3 and 4:
Four layers of equipment
Positions 1 and 2:
CPU
CH
S
-M
3
.cd
r
Use appropriate
mounting slot,
Figure 3.3 CA-2 Audio Chassis Assembly
CA
2chassisa
ssem
bly.wm
f
Half-chassis for
control panel
and optional pair
of Loop Control
and Expander
Modules.
Half-chassis for
DVC and
optional
NCM/HS-NCM.
Microphone
and
handset
well
Back plate
