THORLABS ITC1 Series Operation Manual page 10

ITC1xx
Potentiometers
P1 Sets the laser diode limit current
P2 Adjusts the laser set current or power (depending on CC or CP Mode)
P3 Sets the TEC current limit
P4 Adjust the set temperature (transducer) or resistance (thermistor)
P5 TEC P share
P6 TEC I share
P7 TEC D share
P8 Define the TEC temperature window
P9 For CMR adjustment. Should not be changed by the user.
Switches
S1 Laser current controller mode
Switch to the left = constant power mode (CP)
Switch to the right = constant current mode (CC)
S2 Laser diode polarity
Switch to the left = cathode grounded (CG)
Switch to the right = anode grounded (AG)
S3 Temperature sensor selection
Switch to the left = thermistor
Switch to the right = transducer (AD590 etc.)
S4 TEC I share ON/OFF
Switch towards ST2 = TEC I share ON
Switch towards ST1 = TEC I share OFF.
Jumper
JP1 Bias+
JP2 Bias-
JP4 TEC window
1)
For compatibility with Thorlabs laser diode mounts
LEDs
LED1a Laser ON (Upper LED)
LED1b TEC ON (Lower LED, closest to the PCB)
LED2 Power Supply OK
LED3 TEC temperature out of window
8
Jumper closed: bias+ connected to ST2 Pin 12
Jumper open: bias+ disconnected from ST2 Pin 12
Jumper closed: bias- connected to ST2 Pin 9
Jumper open: bias- disconnected from ST2 Pin 9
Jumper closed: TEC window OFF
Jumper open: TEC window ON
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