Installation
34 — English
Servitec 35-120 with Touch controller — 06.07.2016 - Rev. B
6.5.2
Terminal plan, operating unit
1
RS-485 interfaces
6
Analogue outputs for Pressure and Level
2
I/O interface
7
Battery compartment
3
I/O interface (reserve)
8
KNX bus interface
4
SD card
9
Terminators RS-485 (dip switch)
5
10 V supply
10
Terminators RS-485 (dip switch)
Terminal
number
Signal
Function
Wiring
1
A
RS-485 interface.
S1 networking.
---
2
B
3
GND S1
4
A
RS-485 interface.
S2 modules: Expansion or communication module.
User supplied
5
B
6
GND S2
18
PE (shield)
Analogue output: Pressure.
Standard 4 – 20 mA.
User supplied
19
Pressure
20
GNDA
21
Level
Level analogue output.
Not assigned
22
GNDA
7
+5 V
Reserve
---
8
R × D
9
T × D
10
GND IO1
11
+5 V
I/O interface: Interface to the main circuit board.
Factory
12
R × D
13
T × D
14
GND IO2
15
10 V~
10 V supply.
Factory
16
17
FE
