6
Installation and Commissioning
KNX I4-ERD evaluation unit
• Status: 15.03.2016 • Technical Changes and Errors reserved.
2.3. Device design/sensor connection
2.4. Notes on mounting and commissioning
Never expose the device to water (e.g. rain) or dust. This can damage the electronics.
You must not exceed a relative humidity of 95%. Avoid condensation.
1) Programming LED and programming buttons (PRG)
2
Bus terminal slot (KNX +/-)
3) Network LED (power)
4) Supply voltage input 230V AC L/N (top and bottom connections bridged internally)
5) Input 1 for TH-ERD sensor
6) Input 2 for TH-ERD sensor
7) Input 3 for TH-ERD sensor
8) Input 4 for TH-ERD sensor
Sensor connections are not protected against reverse polarity!
Pin assignment:
+
brown (+4...24V DC)
-
white (ground)
A
green (RS485 lead A)
B
yellow (RS485 lead B)
3
4
1
2
5
7
6
8
