85
The BBX-FXMNS backbox supports the QMB-5000N amplifier backplane and card cage which holds
up to four amplifiers, the FX-4000MNS Fire Alarm main board chassis and PS-2040 Power Supply.
Figure 48
BBX-FXMNS Backbox Dimensions and Contents
16.5”
25”
33.5”
BBX-FXMNS Backbox
Dimensions
between
mounting holes
QMB-5000N Audio Card Cage
(Space for an ANC-4000
Audio module, TNC-5000
Telephone module and four
amplifiers)
FX-4000MNS Main Fire
Alarm Board and backplate
(3 adder modules may be
mounted over the main board,
similar to the FX-4003-12N)
PS-2040 Power Supply
Mounting Holes
Mounting position
for 2 adder modules.
Mounting positions
for 2 adder modules
in each spot.
Mounting Holes
Mounting Holes
Transformer and
Card Cage
Connection
Transformer and
AC IN Connection
Battery Disconnect
Board
Transformer and
FX-4000MNS Alarm
Board Connection
Batteries (maximum 40 AH)
