Terminal

Symbol

Description

1a, 1b

2 x RJ45 interface for Ethernet with switch

2

 

1 x RJ45 interface, local service/tool port

3, 4

KNX

For future use

5, 6

, ⏊

Operating voltage AC/DC 24 V

7

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

10, 11

D, ⏊

Digital input (for future use)

Term

On, off

Switch for bus termination

Polar

On, off

Switch for polarization

66, 67

MBUS

For future use

68, 69, 70

COM1

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

NOTE: Only COM1, COM2, or COM3 can be used for P1. COM4 only supports MS/TP.

71, 72, 73

COM2

74, 75, 79

COM3

77, 78, 79

COM4

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

CD, CS
CS, ⏊
⏊,

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