D20/D200
Installation and Operations Guide
GE Energy
994-0078-2.00-7 General
34
Full
Familiarization, continued
Interposing
Relays
The required rating of the relays on the K and C boards is determined by the loading
characteristics of the device that the boards control.
If the load rating of the controlled device exceeds the K or C board relay rating, then
you will need an Interposing Relay panel.
Universal
Protocol
Converter
A Universal Protocol Converter (UPC) is required when the D20/D200 has to
communicate with a device that uses a synchronous communications format. The
function of the UPC is to convert between the D20/D200’s asynchronous format, and
the device’s synchronous format.
See “Universal Protocol Converter”, page 88 for UPC configuration.
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