HIKVISION DS-KB2421-IM User Manual

Video Door Phone User Manual
8
3.2.2 Wiring 2 (1 Door Station and 3 Indoor Stations)
Caution
● Do not pull power cables on the rear panel of the door station hard to avoid the
disconnection of power cables.
● Use the insulated tape to tape the bare wires, so as to avoid the short circuit.
Indoor
Station 1
B+ —— Wire for power supply
V —— Wire for video input
A —— Wire for audio input
G —— Wire for grounding
Analog Camera 1
Indoor
Station 2
Analog Camera 2
Indoor
Station 3
Analog Camera 3
Door
Station
Electric Bolt
Red —— Wire for power supply
Blue —— Wire for video output
Yellow —— Wire for audio input/output
Black —— Wire for grounding
Red —— NO
Blue —— COM
Yellow —— NC
Figure 3-4 Wiring 2 (1 Door Station and 3 Indoor Stations)

HIKVISION DS-KB2421-IM Specifications

General

Model	DS-KB2421-IM
Category	Intercom System
Type	Video Intercom
Audio	Two-way audio
Power Supply	12V DC
Operating Humidity	10% to 90%
Protection Level	IP65
Weight	1.2kg
Video Compression Standard	H.264
Audio Compression Standard	G.711
Resolution	720p (1280 × 720)
Network Interface	10/100 Mbps Ethernet
Operating Temperature	-10°C to +50°C
Alarm Input	1 input