Panasonic VL-V901 Series Installation And Operating Instructions Manual page 5

Fully expanded system with extension box example
Lobby Station
(up to 18)
Security camera, access
controller, electric lock
(1 each for each lobby
station)
Lobby station 1 group
up to 6
Lobby station 2 group
up to 6
Lobby station 3 group
up to 6
Lift Controller (up to 15)
(3 branches x 5 lift controllers)
Lift
(up to 3)
Control Box (
(4 distribution
box branches,
Extension Box
3 lift controller
up to 3 branches)
( )
Distribution Box (up to 28)
(4 branches x 7 distribution boxes)
Repeater (up to 4)
1
)
Repeater
Terminal
(up to 4)
PBX (1)
Emergency
Terminal (1)
1. Introduction
Room units (up to 560)
(20 room units x 28 distribution boxes)
. .
. .
. .
. .
. .
TV monitor (1)
(programming)
PC (1)
5