Connecting RS-232 and RS-485 Control

Serial control can be used with stand-alone units, a wall, or several walls.

To connect an external controller:

1.Using a straight-through computer serial cable, connect the RS-232 input of the stand-alone unit or the first unit in the wall to the serial out port of the external control device, such as a video controller. Refer to Figure 7.

2.Connect this first display’s RS-485 Out to the next display’s RS-485 In. Refer to Figure 7.

IN

OUT

IN

OUT

VIDEO

CONTROLLER

LOOPING

FIRST DISPLAY

SECOND DISPLAY

Figure 7. RS-232 and RS-485 Connections

C2928M-QS (7/05)

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Pelco C2928M-QS (7/05) quick start Connecting RS-232 and RS-485 Control, RS-232 and RS-485 Connections