Appendix C  DVR Connect Cable 
1  RS-485 connect c le e
Material and tool 
One twist cable (8 pins), one standard
 
RJ45 introduction 
Definition 
ab  mad  method   
 RJ45 connector and one tool special for RJ45. 
 
Pin definition 
To make the connect cable according the follows. As to left point of RJ45 head, 1  and 2
nd
 
st
cables are the anode and cathode line for sending, 3
rd
 and 4
th
 cables are the anode and cathode line 
for receiving, 7 is the shared grounding line:   
 
Pin definition for Standard RS-485 serial port RJ45 plug-in 
2  UTP network connect cable made method 
Material and tool 
One twist cable (8 pin, the length can be defined as to the actual demand, but must be within 
100m), 2 standard RJ45 head, one tool for RJ45. 
Suggestion:    have a network cable test tool to test each cable made. 
 
Pin definition 
To make the network cable according to the actual situation, there are two options: 
(1) Use the following method to make the network cable when DVR is connected with 
network hub or switch. 
 88