Chapter 5. Power Supply / CPU
5-36
5.9.2 Usage
Dip switch position Description
Switch for communication setting
A switch for Built-in RS-232C communication setting
(Use no. 4,7,5 pin of 9-pin communication connector.)
Switch for O/S downloading
A switch for GM7U operating system downloading
REMARK
1) The lower ROM mode switch is for the GM7U operating system downloading.
2) Its ON status causes malfunction of the system, so make sure to turn it off for the normal operation.
The dip switch for the built-in/external communication setting is placed deep within to prevent an accidental operation. Use a
small driver to operate it. (Be careful to not touch the ROM Mode switch.)
Terminal block cover
Driver
Dip switch
ROM MODE
ON
ROM MODE
OFF
ON
OFF
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