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Appendix C DVR Connect Cable
Definition
1 RS-485 connect cable made method
Material and tool
One twist cable (8 pins), one standard RJ45 connector and one tool special for RJ45.
RJ45 introduction
Pin definition
To make the connect cable according the follows. As to left point of RJ45 head, 1
st
and 2
nd
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 RS-232 connect cable made method
DS-7000HI has standard DB9 RS-232 interface, like PC COM port.
Pin definition
I means DVR input and O means DVR output.
Pin index Name I/O Description
1 DCD I Carrier Detect
2 RXD I Receive Data
3 TXD O Transfer Data
4 DTR O Terminal Device Ready
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