Terminate linkconnect control wiring, N o t e – ETC Unison ERn Wall-mount Control Enclosure User Manual

Page 36

Unison

ERn Wall Mount Enclosure Installation Manual

Terminate LinkConnect Control Wiring

Unison control stations communicate with the Paradigm Architectural Control Processor

using the Echelon LinkPower network (LinkConnect). LinkConnect is based on Echelon

LonWorks

with LinkPower bidirectional protocol, and uses one pair of wires (data+ and

data-).

Termination is available for up to twelve home runs of LinkPower data runs utilizing Belden

8471 cable (or approved equal) plus one 14 AWG ESD drain wire when the data cable is

not installed in grounded metal conduit.

LinkPower wiring is topology-free and polarity independent. Wiring may be any combination

of bus, star, loop, and home run. The total combined length of LinkPower wire run cannot

exceed 1,640 feet (500m), with a maximum distance of 1,313 feet (400m) between any two

communicating devices. Without a repeater, no device may be more than 1,313 feet (400m)

away from the Architectural Control Processor.

Standard interoperability requires that there should be a maximum of only one station

repeater between any two LinkConnect devices. This means that only one Repeater

Module, whether a Paradigm Station Repeater Module (P-REP) or a Paradigm Dual Station

Repeater Module (P-DREP), may be used per Paradigm Architectural Control Processor

(P-ACP). Each individual topology-free LonWorks network can have no more than 62 LON

stations with a repeater, Station Power Module,and Paradigm Architectural Control

Processor.

Step 1:

Pull Belden 8471 (or approved equal) control wiring into the ERn4 enclosure

through the conduit opening previously prepared.

Step 2:

Strip 3/16” (5mm) of insulation from the ends of each wire pair.

Step 3:

Remove the LinkPower connector

(labeled LON) from the top right I/O

board.
•

Notice the LinkPower connector

is labeled to indicate that the

connector is split between two

segments, allowing six station

wire home runs per segment.

This is effective only when a

Paradigm Dual Station Repeater

module (P-DREP) is used. With the standard Paradigm Station Repeater

module (P-REP) you may connect up to twelve station home runs connect to

the single control segment.

N o t e :

Wire tie down locations provided on rear panel.

N o t e :

All low voltage control cables must run in separate conduit from power wires.

N o t e :

When utilizing a Paradigm Station Repeater module (P-REP) or Paradigm dual

station repeater module (P-DREP), terminate the affected LON segment(s) and

associated auxiliary power wiring to the top right I/O board in the ERn4 enclosure.

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