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:

RS232 Universal Serial T-Switch

Model 85643

Date Changes and comments Manual revision
April 7, 2009 Serial interface description added 1.40
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February 9, 2009 Interface configuration for #85644 added 1.30
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October 2, 2006 New pinout for the input interfaces 1.10
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June 9, 2006 RS232 Universal Serial T-Switch, 4 MByte Buffer
Model 85643, all device revisions
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