GENERAL PURPOSE BROADCAST
EXPANSION FUNCTIONS
4
-5-
2
Switch No.
Number of
6
7
8
Connected Units
OFF
OFF
OFF
0
ON
OFF
OFF
1
OFF
ON
OFF
2
ON
ON
OFF
3
OFF
OFF
ON
4
ON
OFF
ON
5
OFF
ON
ON
6
ON
ON
ON
7
How to Connect 3 or More VM amplifiers
Perform sub-amplifier unit number settings using a jumper header for sub-address settings on the CPU circuit board.
Setting the number of units to be connected to the system
(Switch SW3 on the CPU circuit board)
NOTE:
The system's total number of connected units should be set at the master
VM amplifier. Set the number to zero when this number exceeds 7.
In this case, communication error signals are not output, even when
connected equipment experience communication failure.
When connecting 3 or more VM amplifiers, the following settings are required:
(1) Master-sub relationship.
(2) The number of units to be connected to the system
(the total number of sub-VM amplifiers and RM units. The master unit is not included).
(3) Unit number for each sub-amplifier.
A separate line needs to be installed for audio signal transmission from the master VM amplifier to the sub-VM amplifier.
Connect the master VM amplifier's PREOUT terminal to the sub-VM amplifier's POWER AMP IN terminal and make the
cable distance as short as possible because the line is unbalanced.
1
SUB-ADDR
2
3
1
SUB-ADDR
2
3
1
SUB-ADDR
2
3
1
SUB-ADDR
2
3
1
SUB-ADDR
2
3
1
SUB-ADDR
2
3
1
SUB-ADDR
2
3
1
SUB-ADDR
2
3
Sub-VM 1
Sub-VM 2
Sub-VM 3
Sub-VM 4
Sub-VM 5
Sub-VM 6
Sub-VM 7
Sub-VM 8
Jumper Headers for
Sub-amplifier’s unit No.
NOTE:
Make sure that the sub-amplifier unit number setting
is performed for each amplifier. The number should
be consecutive from 1, taking care not to duplicate
unit numbers.
