125
3 RS232 Connecting
Material and tool
One twisted cable (8 pins), one standard RJ45 head, one or more DB25 or DB9
plug-in, a tool for RJ45, one electric iron, and some soldering tin.
Pin definition
To make the RJ45 according to the following pin definition; I means DVR input, 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
CTS
I
Clear Data
5
RTS
O
Request to Send
6
DTR
O
Terminal Device Ready
7
GND
Ground
8
Null
—
—
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:
Содержание DS-8704HI-S
Страница 14: ...14 The installation of HDD is complete...
Страница 25: ...25 How to exit menu Press PREV or ESC key to exit menu and return to preview mode...
Страница 56: ...56 In this case press ENTER to return password edit box and input new password again...
Страница 62: ...62...
Страница 63: ...63 5 4 Day and Time Setup 5 4 1 Day and Time Setting In Display menu you can setup DVR system date and time...
Страница 113: ...113...
Страница 124: ...124 The corresponding relationship of cross cable...
Страница 136: ...136 Suggestions...