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Pin definition
To make the RJ45 according to the following pin definition; I means DVR input, O means
DVR output.
Pin index
1
2
3
4
5
6
7
8
According to demand, the following three situations are considered to make the serial port
plug-in according to the corresponding relationship of the pin definition.
(1) When the serial port of the DVR is connected with the DTE device with DB25 plug-in
(terminal like computer, annunciator, door access etc), the corrresponding relationship is as
follows:
(2) When the serial port of the DVR is connected with DTE device with DB9 plug-in, the
corresponding relationship is as follows:
User Manual of NVR Series DVR
Name
I/O
DCD
I
Carrier Detect
RxD
I
Receive Data
TxD
O
Transfer Data
CTS
I
Clear Data
RTS
O
Request to Send
DTR
O
Terminal Device Ready
GND
Ground
Null
—
—
Connection for RJ45 and DB25 (DTE)
Total
99
104
P a g e
Description
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