2 camera, 3 audio, Ptz camera camera (bnc) – Clover Electronics CDR 4170 User Manual
Page 46: Clover

8.2 CAMERA
This product can be installed up to 4 cameras. 
Connect cameras to the VIDEO IN (BNC) on the back panel of the product. 
To connect a PTZ camera, connect the PTZ camera’s control line to the RS-485 (+, -) terminal 
and connect the video output to one out of VIDEO IN on the back panel of the product. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
CH1
CH2
CH3
CH4
LOOP OUT
VIDEO IN
V - OUT1
A - IN
A - OUT
ETHERNET
ALARM IN
1
2
3
4
GND
+
_
ALARM OUT
AC INPUT
AC100-240V,50/60Hz
POWER
ATTENTION
CAUTION
RISQUE DE CHOC ELECTROIQUE
NE PAS ENLEVER
DO NOT OPEN
RISK OF ELECTRONIC SHOCK
RS485
V - OUT2
MODEL NO : CDR4170
AC100-240V,50/60Hz, 25W
CLOVER ELECTRONICS 
13073 EAST 166TH STREET, CERRITOS, CA 90703
Factory ID/DHHS CODE : BC
R
C
 US LITED 
 E233232
AUDIO/VIDEO EQUIPMENT 2UW2
ELECTRONICS U.S.A
CLOVER
PTZ CAMERA
CAMERA (BNC)
 
 
8.3 AUDIO
The system has one channel audio input and output. If you wish to record and playback audio 
signal, connect the proper audio device (microphone) to the AUDIO IN (1 Vp-p @600 ohms) and 
speaker to the AUDIO OUTPUT (See illustration below). 
 
 
 
 
 
 
 
 
 
 
NOTE
A LOOP OUT is a looping output trough VIDEO IN. Therefore the monitor for 
looping output can be used only when there is video signal on the VIDEO IN. 
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