
2-22
• Channels 7 and 8
Channels 7 and 8 are not used.
• COM 1
COM 1 is for connection to a Host Computer (by others).
CCU-100/HD
COM 1 TO
HOST
COMPUTER
Pin 2 RX TO TX
Pin 3 TX TO RX
Pin 5 GND TO GND
• COM 2
COM 2 is for connection to the Ultrak HD Series Video Switcher.
The switcher provides a communication cable with 6-pin RJ-11
connectors on both ends and a 25-pin Sub D connector with an RJ-
11 connector. Plug one end of the communication cable into the
RJ-11 RS-232 connector on the rear panel of the HD series video
switcher. Plug the other end of the communication cable into the
RJ-11 connector on the 25-pin Sub-D connector. Attach the 25-pin
Sub-D connector to COM 2 on the CCU-100/HD Central Control
Unit.
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