Table of Contents
Advertisement
Connect switch 25-pin box RS232 port with DVR RS232 port. (25-pin outlet supports maximum
twelve RS232 ports. Switch is just for sending not for receiving. So you can use two cables: GND
and TXD)
Please refer to the following sheet if you are connecting 485 switch box to DVR See Figure 8-3.
RS485switch box 25-pin port
（DB25）
Note: you can use standard RS232 port to connect keyboard with DVR.
Note:
This manual is for reference only. Slight difference may be found in the user interface.
All the designs and software here are subject to change without prior written notice.
If there is any uncertainty or controversy, please refer to the final explanation of us.
Please visit our website for more information.
Figure 8-3
RS232 port
（DB9）
34
Advertisement
Table of Contents
