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Chapter 5 Operation Guide
2.Digital Control Interface (DB-25) Function Description
（1）The laser is controlled via signals applied to the DB-25 connector.
Please refer to the connector interface description table above for 5.2.1
pin designation and operating levels.
（2） Pins 1 to 8 are the 8 bit bus for the output power setting. Pin 1 is the
least significant bit and pin 8 is the most significant bit. Codes in the range
0...255 (0...FFh) should be applied to these pins, which correspond to the
power setting of 0...100% of the specified nominal value, such as:
Setting 1
Setting 2
Setting 3
Setting 4
Pin 1
0
0
0
0
Pin 2
0
0
0
0
Pin 3
0
0
0
0
Pin 4
0
0
0
0
Pin 5
0
0
0
1
Pin 6
0
0
1
1
Pin 7
0
1
1
1
Pin 8
1
1
1
1
Current
50%
75%
87.5%
93.75%
