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20
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Serial Communication (RTR-
57
C/
57
U)
Connect the RS-
232
C communication cable to the serial port of
your computer. To use RS-
232
C serial communication with
RTR-
57
U, the optional RS-
232
C communication cable TR-
07
C is
required.
Serial Port Mark
The communication cable connection is a
D-Sub
9
pin female. Please connect it to a port
that has markings such as these.
�������������
������
- If the cable is connected to the wrong port, communication cannot take
place.
- Be sure to securely connect the cable to avoid any communication failure
due to a loose connection.