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3.3.3 Additional Low Voltage Signal Input
DSUB-15 female connector for additional Low Voltage signal measurement
The DSUB-15 connector allows connection of additional input signals. It offers three additional
analog inputs, power supply of +12V, TEDS function and I2C serial interface.
The third analog input (AI-2) of the DSUB-15 connector is multiplexed with the 6
th
LEMO input
for current measurement. So you just should either use the 6th current input or AI-2 of the
DSUB-15 connector. This connector is often used for connection of additional signals like
pyranometer, weather sensor, temperature sensor, any process signal or I2C serial data.
Depending on the hardware the channels are assigned to different AI channels.
Pin
Signal
Description
1
GND
Ground
2
AI-0
3
AI-1
4
AI-2
MUXed with 6 LEMO
5
NC
6
GND
Power ground
7
+ 12V
+12V power source
8
I2C_SDA
I2C serial data
9
AI+0
10
AI+1
11
AI+2
MUXed with 6 LEMO
12
NC
13
GND
Power ground
14
TEDS+
TEDS signal(Sensor CAL)
15
I2C_CLK
I2C Clock
Содержание PQA8000
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