Mircom LT-6752-QMB-5000N Operating instructions

Brand: Mircom

Model: LT-6752-QMB-5000N

Type: Operating instructions

LT-6752 Rev 0 August 2023 Page 1 of 3

QMB-5000N

Audio Motherboard and

Card Cage

Contents:

• QMB-5000N Audio Motherboard Card Cage

• 4 screws for the deadfront and 4 hex nuts for mounting into BBX-FXMNS/ MMX-BBX-FXMNS

The QMB-5000N Audio Motherboard Card Cage can be installed in one enclosure, the FleX-Net™/ MMX™ Mass

Notification System (BBX-FXMNS/ MMX-BBX-FXMNS) Enclosure.

See manual LT-894/ LT-894SEC for installation and wiring information.

Figure 1 QMB-5000N Audio Motherboard and Card Cage

4 Screws

1 2 3 4

Amplifier Slot Positions

Backplane

Amplifier Guide Rails

Deadfront

LT-6752 Rev 0 August 2023 Page 2 of 3

Figure 2 Back view of QMB-5000N Audio Motherboard and Card Cage

Mounting Holes

LT-6752 Rev 0 August 2023 Page 3 of 3

Place card cage over the four studs located in the BBX-FXMNS/ MMX-BBX-FXMNS. Fasten the amplifier card

cage to the backbox using the four hex nuts provided with the QMB-5000N.

Figure 3 Placement of QMB-5000N Audio Motherboard in the FleX-Net™/ MMX™ Mass

Notification System (BBX-FXMNS/ MMX-BBX-FXMNS) Enclosure

Batteries (maximum 40 AH)

BBX-FXMNS/

MMX-BBX-FXMNS Backbox

Mounting Hole

Mounting Hole Mounting Hole

Mounting Hole

FX-2000MNS/

MMX-2000MNS and

FX-4000MNS/

MMX-4000MNS Main Fire

Alarm Board and backplate

(3 adder modules may be

mounted over the main board,

similar to the FX-2003-12NDS/

MMX-2003-12NDS)

QMB-5000N Audio Card

Cage (Space for an

ANC-5000 Audio module,

TNC-5000 Telephone

module and four

amplifiers)

Mounting positions for 2

adder modules in each spot

PS-2040 Power Supply

Mounting position for 2

adder modules in each spot

Transformer and

FX-2000MNS/ MMX-2000MNS

and FX-4000MNS/

MMX-4000MNS Alarm Board

Connection

Battery Disconnect

Board

Transformer and AC IN

Connection

Transformer and Card

Cage Connection

33.5”

25”

16.5”

Mircom LT-6752-QMB-5000N Operating instructions

Mircom LT-6752-QMB-5000N Operating instructions

Mircom LT-6752-QMB-5000N Operating instructions

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