FleX-Net
TM
Installation and Operation Manual
89
Multiple QBB-5001/R Cabinet Connections
When multiple QBB-5001/R audio cabinets are used in an installation, each has its own QPS-5000N Power Supply,
QBC-5000N Battery Charger, and batteries. A total of three audio cabinets may be used by simply interconnecting
with Mircom MD-525 Extension Cables from the QMB-5000N "Out" Connector, to the "In" Connector on the next
QMB-5000B motherboard.
QMB-5000B Motherboards #1, #2, and #3
Up to a maximum of three QBB-5001/R Audio Cabinets may be connected to a BBX-FXMNS or Integrated Fire/
Audio Cabinet. The first QMB-5000N “Node” Motherboard has a connection from the FX-2000ND or FX-2000MNS.
The next three QBB-5001/R Audio Cabinets contain QMB-5000B Motherboards #1, #2 and #3 which are connected
with the regular ribbon cable MD-525. The MD-525 cable is connected from the output connector on the QMB-
5000N “node” motherboard to the input connector on QMB-5000B motherboard #1. Another MD-525 cable is
connected from the output connector on motherboard #1 to the input connector on motherboard #2 (see Figure 59
below). Again another MD-525 cable is connected from the output connector on motherboard #2 to the input
connector on motherboard #3.
Figure 59: Interconnecting Extra QMB Motherboard
Note: Jumper JW1 (located in the bottom left-hand corner of the backplane) is installed for expansion
cabinets #1 to 3.
IO
NODE MOTHERBOARD
A
M
P
1
A
M
P
2
A
M
P
3
A
M
P
4
Regular MD-525 Ribbon Cable
Regular MD-525 Ribbon Cable
Special MD-525 Ribbon Cable
IO
A
M
P
1
EXPANSION MOTHERBOARD #1
EXPANSION MOTHERBOARD #2
EXPANSION MOTHERBOARD #3
A
M
P
2
A
M
P
3
A
M
P
4
A
M
P
5
A
M
P
6
A
M
P
7
IO
A
M
P
1
A
M
P
2
A
M
P
3
A
M
P
4
A
M
P
5
A
M
P
6
A
M
P
7
IO
A
M
P
1
A
M
P
2
A
M
P
3
A
M
P
4
A
M
P
5
A
M
P
6
A
M
P
7
ANC-5000 and/or TNC-5000
NOT USEDNOT USED
NOT USED
Ampliers are dened as in slot
positions 2 to 5 for the Node
Motherboard QMB-5000N
Ampliers are dened as in slot
positions 2 to 7 for the Expansion
Motherboards QMB-5000B
JW1
JW1
JW1
JW1
QMB-5000N
QMB-5000B
QMB-5000B
QMB-5000B
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