Axetris AG
LGD Compact Operating & Integration Instructions; Rev. D
19/46
D-Sub sensor module J2 (15pol, 3 rows)
The sensor module is connected to the electronic housing via a three row D-sub connector.
Figure 12 shows the pin assignment.
Figure 12 Sensor module connector
assignment
Table 4 Connector assignment 15pol D-Sub (3 rows)
Pin
Name
Description
Measurement
Signal
11
PD_I
Photodiode
12
PD_GND*
Laser control
1
Laser_Drive
Laser diode
9
Laser_GND
5
Laser_Supply3V3
8
Laser_U
diff
6
Laser_ID
2
Laser_Thermistor Thermal resistance for laser temperature measurement
3
Laser_GND*
10
La
Peltier element for laser temperature stabilization
7
Laser_TEC-
4
Laser_PT1K
Thermal resistance for optical head temperature
measurement
Temperature
measurement
13
Gascell_PT1K
Thermal resistance for gas temperature measurement
14
Gascell_GND*
Not used
15
Reserve
n/a
Shield
Case
SHIELD
Connected from D-Sub casing to cable shield
* Same potential
