Connection terminals - Data Sheet - WTX631-GA0090

A

Mains voltage AC 230 V

E

Connections for M-bus devices and repeaters

B

Output for power supply to level converter WTX631 (DC 24 V)

F

Connections to connect an M-bus master or an upstream master level converter when this is used as a repeater. Terminals (1), (2)

C

Power supply connection to the level converter/repeater (not to be used for any other purposes)

G

Ground

D

Serial interface RS-232 and RS-485 to connect to a PC or M-bus master

H

Status LEDs

RS-232

A = TX

B = RX

C = GND

Terminals (6), (7), (8)

RS-485

D = REF

E = D-

F = D+

Terminals (3), (4), (5)

I

Button for firmware update