AEQ DIGITAL COMMENTARY UNIT Customer's Manual page 46

• RS 232 CONTROL PORT
As mentioned before, the CCU control network uses an RS 485 interface. It is
very unusual to have this kind of interface available at the control computer.
For this purpose, each CCU have an RS 232 interface to RS 485 converter.
The RS 232 port is then intended for connection of the control computer to the
CCU control network.
CAUTION: Only one RS 232 port connection is allowed in a given CCU control
network. The user can choose the nearest CCU RS-232 port for computer
connection, but only one can be used at any given time.
The unit is fitted with a female DB 9 chassis mounted connector for
configuration by an external computer communicating through RS 232 protocol.
The active pins are as follows:
RX 2
TX 3
GND 5
RTS 7
The PC manual should be consulted for the serial port wiring.
Digital Commentary System
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