![background image](http://html.mh-extra.com/html/northern/ptzkbd3/ptzkbd3_user-manual_1708228006.webp)
5
◆
Switching control between speed dome and multiplexer: The controller can be operated in two
modes: Speed Dome and Multiplexer. When power supply is on it is operated on the default
mode, namely, the Speed Dome. Press
[F3]
to make switch between two modes. When it is under
the mode of the Multiplexer, you can control it via “Address Box”. At this time, the LCD will
display “Mulx Addr:001”. The RS-485 output of the keyboard cannot be used to control the
multiplexer. When operation, please pay attention to the information on the LCD.
Termination Resistor Setting
◆
The RS485 standard requires a daisy-chain connection between the equipment. There
must be termination resistor with 120 ohms impedance at both ends of the connection
(refer to the following FIGURE):
◆
Setting termination resistor by the DIP5 of the MODE
as follows:
Summary of Contents for PTZKBD3
Page 12: ...11 ...