4200 Series
LaserSource
User’s Manual · Page 17
Rear Panel
In addition to the input power connector described above, there are four
connectors and one push button on the rear panel of the
LaserSource
: the
output connector, modulation input BNC, reset button, USB connector, and
RS232 connector.
LaserSource
Rear Panel
Laser Output Connector
The
Output
connector is a female DB-9, and has the following pin-out:
DB-9 Pin
Description
1
In
2
Interlock –
3
Earth Ground
4 & 5
Laser Cathode
6
Photodiode (PD) Cathode
7
Photodiode (PD) Anode
8 & 9
Laser Anode
Shell
Earth Ground
Output Connector (DB-9 Female)
Arroyo Instruments has followed industry conventions for laser DB-9
connections, and is likely compatible with pin-outs from other vendors.
Modulation Input
The modulation input BNC accepts a 0V to 10V input signal for analog set point
control of the driver. The modulation input is optically isolated from the rest of
the control circuits in the
LaserSource
and electrically isolated from ground, so
you should not need to be concerned about ground interference from any
modulation source.
Reset Button
The reset button is not normally used, but if the unit fails to respond after power
cycling, pressing the reset button while applying power will cause the unit to
