Trane RTWA 70-125 TON - Manual (Page 79)

RLC-SVD03A-EN 79
Module Power and Miscellaneous I/O
LonTalk® Communications Interface - Chillers Module
(LCI-C) (1U8)
The Tracer LCI-C interface acts as a translator between Trane's IPC (Inter-
Processor Communication) and Echelon's LonTalk® communications protocol
(ANSI/EIA/CEA 709.1). This allows the chiller to communicate with building
automation systems which also communicate using the LonTalk® protocol.
The LonTalk® communications protocol also allows for peer to peer commu-
nications between controllers so they can share information. Communicated
setpoints have priority over locally wired inputs to the controller unless the
controller is set to the "Local" control mode.
The LCI-C module provides connectivity to Trane's Rover® service tool for
proper configuration of the LCI-C module.
Note: LonTalk® communication links are not polarity sensitive.
Figure 24 LCI-C Nominal Terminal Voltages

 
  
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