Terminal

Symbol

Description

1A, 1B

2 x RJ45 interface for Ethernet with switch

2

1 x RJ45 interface (for future use)

3, 4

KNX

For future use

5, 6

≃, ⏊

Operating voltage AC 24 V or DC 24 V

7

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

8, 10

Dx

Digital inputs 1…2

20 to 31

Ux

Universal inputs / outputs 1…8

40 to 51

Xx

Super universal inputs / outputs 1…8

 

⏊

Measuring ground for Ux and Xx

32, 36

V≃

AC 24 V power for field devices 48 VA / 2 A
(If PXC5.E24 is powered by DC voltage, then the field device supply on terminal V≃ is DC voltage, too)

35, 39

V+

DC 24 V power for field devices 4.8 W / <200 mA

66, 67

MBUS

M-bus interface (for future use)

68, 69, 70

COM1

Interface EIA-485 (BACnet MS/TP or P1)

71, 72, 73

COM2

Interface EIA-485 (BACnet MS/TP or P1)

Term

on, off

Switch for bus termination

Polar

on, off

Switch for polarization

75 to 92

DOx

Relay outputs 1…6

Right side of device

 

Interface for connecting TXM I/O modules

Wiring lines for field devices

Wiring length max. 300 m (1,000 ft), CU wire or CU strand.

Cross-section depending on the signal

30 m (100 ft) applies for signal types AI NTC10K and AI NTC100K
or 300 m (984 ft) with shielding