94
18.0
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-4000MNS. 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 55 below). Again another MD-525 cable is connected from the
output connector on motherboard #2 to the input connector on motherboard #3.
Figure 55
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.
I
O
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
I
O
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
I
O
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
I
O
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-4000 and/or
TNC-5000
NO
T USED
NO
T USED
NO
T USED
Amplifiers are defined as in slot
positions 2 to 5 for the Node
Motherboard QMB-5000N
JW1
JW1
JW1
JW1
QMB-5000N
QMB-5000B
QMB-5000B
QMB-5000B
i
