Terminal

Symbol

Description

1, 2

2 x RJ45 interface for Ethernet with switch

3, 4

KNX

for future use

5, 6

~, ⏊

Operating voltage AC 24 V

7

Functional ground (must be connected on the installation side with the building grounding system (PE).

8 to 29

Ux

Universal inputs/outputs

 

⏊

Measuring ground for Ux

8, 19

V+

DC 24 V power for field devices 2.4 W / <100 mA

18, 29

V~

AC 24 V power for field devices 48 VA / 2 A
shared with TX-I/O module field supply

68, 69, 70

COM

Interface EIA-485 (for future use)

Term

on, off

Switch for EIA-485 bus termination (for future use)

Polar

on, off

Switch for polarization

75 to 86

DOx

Relay outputs

TX-I/O Bus
1, 2, 4, 5

CD, CS
CS, ⏊
⏊, ~

Interface for connecting TXM input/output modules; Right side of controller from top:
Communication
module and sensor (DC power)
Field device AC power (same as operating voltage)