User Manual of DS-7000HI-S Series Net DVR
Page 107
The corresponding relationship of cross cable
2 RS-232 connect cable made method
DS-7000HI-S 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
5
GND
Ground
6
--
--
--
7
RTS
O
Request to Send
8
CTS
I
Clear Data