Panasonic VL-V901 Series Installation And Operating Instructions Manual page 38

4. Installation
R If problems occur after installation, refer to 7.1 Basic troubleshooting (Page 84) or the following web site.
https://panasonic.net/cns/pcc/support/intercom/v900
Distribution mode example
Control box
For systems that support enhanced features version 2 or later (page 92)
Up to 20
A
Control box
*1 Room units: up to 560 for each control box
The number of distribution boxes can be increased from 7 to 10.
However, the number of supported room units remains unchanged at 560 units.
Distribution box
A
B
C
D
E
F
G
38
Up to 20
A B
*1
B C
*1
DIP switch
ON
OFF
1 2 3 4 5 6 7 8
ON
OFF
1 2 3 4 5 6 7 8
ON
OFF
1 2 3 4 5 6 7 8
ON
OFF
1 2 3 4 5 6 7 8
ON
OFF
1 2 3 4 5 6 7 8
ON
OFF
1 2 3 4 5 6 7 8
ON
OFF
1 2 3 4 5 6 7 8
C D
D E F
*2
Repeat switch
(off)
(off)
(off)
(off)
(off)
(off)
(off)
E F G
G H I
Terminate switch
J
*3
(off)
(off)
(off)
(off)
(off)
(off)
*4
(on)