Due to maintenance work, W&T will be closed on 19.04.2024!

You can reach our technical hotline at:
+49 202/2680-110 or under the emergency number: +49 179/4317651


On Monday 22.04.2024 we will be available as usual.

W&T connects
Interfaces for TCP/IP, Ethernet, RS-232, RS-485, USB, 20mA, glass and plastic fiber optic cable, http, SNMP, OPC, Modbus TCP, I/O digital, I/O analog, ISA, PCI
Current manuals:

Serial Interface Modules


Date Changes and comments Manual revision
September 18, 2013 New print version, 20mA modules summarized 1.70
PDF download
April 19, 2010 USB, plastic fiber optics and glass fiber optics modules outsourced 1.60
PDF download
10.09.2007 New Interface modules 18613 and 18633
Specifications for switching time for RS485 ports expanded
1.50
PDF download
July 27, 2006 Mechanical details and dimensional drawings expanded 1.40
PDF download
July 28, 2005 New Interface modules 18402 and 18412 1.30
PDF download
February 14, 2005 Serial Interface Modules, Models
18801, 18811, 18802, 18812, 18803, 18813
18601, 18611, 18602, 18612
18401, 18411
18101, 18111, 18120, 18121
all device revisions
1.20
PDF download