RTAD-SVX01F-E4
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Installation - Electrical
LonTalk Communication Link Wiring
Requirements
The LonTalk communications link is
for connection to a Building LonTalk
Network. The Communications link
wiring is dependent on the network
architecture. It is recommended that
a System Integrator refer to
"LonWorks FTT-10A Free Topology
Transceiver User's Guide" by the
Echelon Corporation for proper wire
selection.
The physical limits are defined in
Chapter 4, Network Cabling and
Connection. This User's Guide is
available on the Echelon Web page.
A typical wire recommendation is
Belden 85102, single twisted pair,
stranded 19/29, unshielded, 150 C.
For additional wiring information,
refer to Trane's "LonTalk Wiring
Installation guide" (BAS-SVN01A-EN.)
Table 38 - Glossary
Comm5
Tranes implementation of the LonTalk protocol.
IPC
Acronym for interprocessor communications.
LonMark International
LonMark International is a global membership organization created to promote and advance the business of
efficient and effective integration of open, multi-vendor control systems utilizing ANSI/EIA/CEA 709.1 (LonTalk)
and related standards.
LonMark Chiller Functional profile
A standard list of network variables, mandatory and optional, that LonMark defines for chiller controller
communications on a LonTalk network.
LonMark communications interface
(LCI)
An interface developed by Trane to allow unit controllers to communicate using LonTalk protocol.
LCI-C Extension software
Trane LCI-C software that implements network variables from both the LonMark Chiller Functional Profile and
Trane Chiller Extension.
LonTalk Protocol
An interoperable protocol developed by the Echelon Corporation and named as a standard by the Electronics
Industries Alliance (EIA-709.1). It is packaged on a Neuron processor that is on the LCI-C LLID.
LonTalk network
A collection of LonTalk devices that communicate and interact with one another.
network variable input (nvi)
A controller's input data item that enables it to exchange data values with other devices on the LonTalk network.
This type of data item can be changed and controlled.
network variable output (nvo)
A controller's output data item that enables it to exchange data values with other devices on the LonTalk
network. This type of data item is for status only.
network variable type
A pre-defined structure for a network variable. A network variable type can be either a standard network variable
type (SNVT) or a user-defined network variable type (UNVT).
Neuron ID
A unique 48-bit digital identifying number assigned by Echelon to every Neuron processor produced. This
number is printed on a label that is attached to the LCI-C. Neuron IDs eliminate the need to set addresses with
DIP switches.
Neuron software
Software within the LCI-C Neuron processor that defines its program ID and network variables.
Program ID
An identifier stored in the LCI-C Neuron processor that identifies the application program that is running. All
controllers with the same Program ID have the same network variable list.
Rover service tool
A Trane software program used as a service tool to configure Trane LonTalk controllers, flash download Neuron
software, make LonTalk bindings between network variables, and otherwise install devices on a LonTalk network.
Rover can also be described as a LonTalk network management tool.
SCPT
Acronym for standard configuration parameter type. A pre-defined structure for communicating configuration
information.
SNVT
Acronym for standard network variable type. See network variable type.
System integration
Generally, the ability for products designed independently to communicate with each other by using the same
communications protocol. Specifically in relation to Trane products, the ability for them to monitor and/or control
another vendors equipment by using an open, standard protocol.
Trane Chiller Extension
The network variables that Trane provides in addition to the network variables provided by the LonMark Chiller
Functional Profile, 8040 Version 1. (Not all network variables in the Trane Chiller Extension are available for every
chiller type.)
UCPT
Acronym for user-defined configuration parameter type. A pre-defined structure for communicating configuration
information.
UNVT
Acronym for user-defined network variable type. See network variable type.
