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Two-Wire Video Intercom Bundle·Quick Start Guide
6
Name
No.
Interface
Description
A8
IO2
Alarm Input 2
A9
12V
Power Supply Output
A10
GND
Grounding
A11
PLC
Power Input
A12
PLC
Power Output
2.1.3 Video/audio distributor Terminals and Interfaces
Figure 2-3 Video/audio distributor Terminals
The video/audio distributor contains 9 groups of two-wire interfaces for the access of
other devices.
2.2 Wiring
Cautions
Make sure all the related equipment is power-off during the installation.
Choose power cables according to the distance between the door station and the
video/audio distributor.
Cable
Resistance
per 100 m
Max.
Transmission
Distance
Max. Distance
(Door station
doesn’t supply
power for electric
lock.)
Max. Distance
(Door station
supplies power for
electric lock.)
24AWG
10 Ω
50 m
50 m
30 m
20AWG
7 Ω
100 m
100 m
80 m
18AWG
4 Ω
150 m
150 m
100 m
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