621-9939

Availability: In Stock


Availability: In Stock

Serial Link Module

The Serial Link Module (SLM), model 621-9939, controls serial I/O data transfer to and from remote I/O. This module has a separate processor with its own data table and operates asynchronously to the processor module. One or two SLMs can be installed in slots L and/or M.

Each SLM controls two serial I/O channels. Each operating channel must be terminated at the extreme ends using the terminating resistor provided.

Western Process Computers, Inc. provides certified, tested, like-new hardware ranging from single printed circuit boards on exchange up through complete assemblies to worldwide users of Honeywell DCS systems (TDC 2000 & TDC 3000). We specialize only in Honeywell DCS hardware such as the 6219939. This is our focus, our specialty – this is all that we do. Request a quote today for competitive pricing and lead times.
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