24
1.Factory protocol
2.Pelco-p protocol
3.Pelco-d protocol
4.VIDO-B02
Picture 4.3.2-1
4.3.3 DVR controlling mode
Move the joystick
【
3
】
to enter DVR directly con trolling mode, as LCD shows (picture 4.3.
2-1)
Choose corresponding protocol according to user's actual in stance , the system will back
to the former menu automatically after deciding the protocol.
1
、
Wonwoo
2
、
QH16CH DVR
Picture 4.3.3-1
4. 4 Exit to keyboard menu
Enter the menu, as LCD shows (picture 4.2. 1-1). Move the joystick
【
4
】
to exit the menu
directly.
5. Appendix
5. 1 RS485 Bus Basic Knowledge
* Characteristic of RS48 5 Bus line
According to RS485 standards, RS485 Bus is of half-duplex data transmission cables with
characteristic impedance as
120
Ω
. The maximum load capacity is 32 unit loads (including main
controller and controller equipment)
* Trans mission distance of RS 485 Bus line
When user selects the 0.56mm (24AWG) twisted pair as data transmission cable, the
