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NFS2-3030/E Installation Manual — P/N 52544:N1 07/18/2014
System Overview
System Cabinets
2.4 System Cabinets
The CPU and modules are installed in a CAB-4 series backbox. There are four different sizes
available, holding from one to four rows of equipment plus batteries (up to two 26AH batteries).
Backboxes are ordered separately from doors. The doors can be mounted on the left or the right
side of the cabinet; reversible hinges are provided so that this choice can be made Section 2.5,
“Compatible Equipment”, on page 17 in the field. Doors open a full 180 degrees and have locks.
Mounting methods include surface-mounting or semi-flush mounting on a wall between 16 inch
(406.4 mm) on-center studs. A trim ring option is available for semi-flush mounting.
External measurements for each cabinet backbox are provided below. Refer to CAB-3/CAB-4
Series Cabinet Installation Document (shipped with your cabinet) for specific mounting drawings
and dimensions.
The CPU and adjacent first-row modules mount in chassis CHS-M3. Additional rows of modules
mount in the cabinet using CHS-4, CHS-4N, CHS-4L, or other chassis compatible with CAB-4
series enclosures.
Some additional components available in the CAB-4 series include:
•
DP-DISP. An Inner Dress Panel for
covering the backbox area surrounding
various modules; for use in the top row.
•
BMP-1. Blank Module Plate for covering
an unused module position. Provides
another location for mounting option
boards such as TM-4 or NCM/HS-NCM.
•
BP2-4. Battery dress panel.
•
DP-1B. Blank panel for covering recessed
equipment in second, third or fourth rows
of backbox.
•
ADP-4B. Annunciator dress panel; for use
in all but the top row.
For information on audio chassis and dress panels, refer to the DVC Digital Voice Command
Manual.
A-size backbox
(one row)
24.125 in (612.78 mm) wide
20.125 in (511.18 mm) tall
5.218 in (132.54 mm) deep
Optional trim ring TR-A4
DR-A4
B-size backbox
(two rows)
24.125 in (612.78 mm) wide
28.625 in (727.08 mm) tall
5.218 in (132.54 mm) deep
Optional trim ring TR-B4
DR-B4,
ADDR-B4
C-size backbox
(three rows)
24.125 in (612.78 mm) wide
37.250 in (946.15 mm) tall
5.218 in (132.54 mm) deep
Optional trim ring TR-C4
DR-C4,
ADDR-C4
D-size backbox
(four rows)
24.125 in (612.78 mm) wide
45.875 in (1165.23 mm) tall
5.218 in (132.54 mm) deep
Optional trim ring TR-D4
DR-D4,
ADDR-D4
