9
v3.0 AB
Table 1: Digital U-Type Molex 53014-1010 Connector Pinout
(Mating connector part number: Molex 51004-1000)
Pin
Number
Pin Label
Function
1*
V+
Power Supply: 5V - 12 V.
For lasers operating <600mW, a 5V minimum is required.
For lasers operating ≥600mW, a minimum of 9V is required, 12V recommended
.
2^
VBIAS ENABLE
(Set Enable)
For analog control
Enable external laser power control through pin 8 (LD VBIAS):
High (>3.6V up to V+ supply voltage) = Enable
Low (GND) = Disable
The same functionality is emulated via software as a replacement for this analog
control.
3
SCL/TX
I2C: SCL standard (RS232: TX; board by request)
4
SDA/RX
I2C: SDA standard (RS232: RX; board by request)
5**
GND
Ground
6*
V+
Power Supply: 5V - 12 V.
For lasers operating <600mW, a 5V minimum is required.
For lasers operating ≥600mW, a minimum of 9V is required, 12V recommended
.
7
ENABLE
Laser enable:
TTL High (>3.6V up to V+ supply voltage) = Enable
TTL Low (GND) = Disable
Pin may also be used for PW modulation at a rate of 1kHz
8^
LD VBIAS
(LD Set)
Laser power setpoint – Enables analog external control of laser drive current.
Drive VBIAS ENABLE (pin 2) high to enable this option.
Drive a voltage between 0V and 1V. The voltage bias will be a 1:1 ratio to the laser
drive current. Be aware that this approach may cause laser mode hopping behavior
in single-mode lasers. Do not exceed maximum recommended drive current for
given laser model.
The same functionality is emulated via software as a replacement for this analog
control.
9^
PD+
For analog readout
Connect voltmeter to PD+ (pin 9) and GND for photo diode V output (0V – 3.3V)
The same functionality is emulated via software as a replacement for this analog
control.
10** GND
Ground
