Echelon 14315R, User Manual

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6 Introduction to LonWorks Routers
Any pair of channel types can be connected by a router by selecting the
appropriate pair of transceivers. The RTR-10 router is compatible with all
L
ON
W
ORKS
transceivers, including standard transceivers for free topology, link
power, twisted pair, and power line. Using multiple communications media can
minimize installation costs and increase system performance by allowing easily
installed media, such as power line or link power, to be combined with media
such as TP/XF-1250 twisted pair.
Router 5000 Overview
The Router 5000 chip is an Echelon semiconductor product, based on the Echelon
Neuron 5000 Core, that is used to build half-routers and full routers for
L
ON
W
ORKS
channels. A L
ON
W
ORKS
router connects two communications
channels and route LonTalk messages between them. They support installation
of networks with dozens to thousands of devices.
The Router 5000 includes the Router firmware required to implement a half-
router. The chip’s compact form factor minimizes the space required to develop a
half-router. You can implement two half-routers to develop a full router for the
same, or different, external transceiver types. Table 1 lists commonly used
channel and transceiver types for Router 5000-based router halves. Echelon
provides special licensing for other transceiver types, such as a Power Line Smart
Transceiver. Contact Echelon Support for additional information.
Table 1 . Common Channel and Transceiver Types
Channel Type Transceiver for Half Router Notes
TP/FT-10 Echelon FTT-10A Free Topology
Transceiver (Model 50051)
Connection to the Router 5000 is
similar to the connection to a Neuron
Chip (see LonWorks FTT-10A Free
Topology Transceiver User's Guide )
TP-RS485 Any EIA-485 transceiver Can use any standard 3.3V or 5V
EIA-485 transceiver (see the
Connecting a Neuron 5000 Processor
to an External Transceiver
Engineering Bulletin)
TP/XF-78 Echelon TPT Twisted Pair
Transceiver Module (Model
50010)
Add differential driver and
differential comparator circuits
(contact Echelon Support)
TP/XF-1250 Echelon TPT Twisted Pair
Transceiver Module (Model
50020)
Add differential driver and
differential comparator circuits (see
the Connecting a Neuron 5000
Processor to an External Transceiver
Engineering Bulletin)
Link-power Echelon LPT-11 Link Power
Transceiver (Model 50040)
Add linear regulator and TX buffer
circuit (see the Connecting a Neuron
5000 Processor to an External
Transceiver Engineering Bulletin)