34
Unison
®
DRd Rack Enclosure Installation Manual
connector and tighten the screw to secure the wire into the connector.
Step 6:
Insert the red auxiliary power wire from the pair into a “+” terminal on the
connector and tighten the screw to secure the wire into the connector.
Step 7:
Repeat steps 5 and 6 for each auxiliary power wire pair in the rack.
Step 8:
Replace the connector on the right I/O board.
SmartLink™ / LinkPower (LON) Control Wiring
SmartLink and Unison control stations communicate with the Paradigm Architectural
Control Processor using the LinkConnect station communication bus from the Architectural
Control Processor to the stations. LinkConnect is based on Echelon
®
LonWorks
®
with
LinkPower bidirectional protocol, and uses one pair of wires (data+, data-).
Throughout this document, LinkConnect is referred to by the protocol it uses, LinkPower.
Termination is available for up to six home runs of LinkPower (LON) data runs utilizing
Belden 8471 cable (or approved equal) plus one 14 AWG (2.5mm
2
) ESD drain wire when
the data cable is not installed in grounded metal conduit. LinkPower wiring is topology-free
and polarity independent, you can install your LinkPower data runs in any desired
combination of bus, star, loop, and home run (up to six home run termination points
available), or any combination of these. 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 (un-repeated) communicating devices. Without a repeater, no device may be more
than 1,313 feet (400m) away from the Architectural Control Processor.
Standard LON interoperability requires that there should be a maximum of only one
repeater between any two LON 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 TP/FT-10 LonWorks network can have no more than 62 LON
stations with a repeater option and Paradigm Architectural Control Processor (a maximum
of 64 total devices).
While the wiring for LinkConnect in SmartLink and Paradigm systems are the same, the two
communication and control types are not interchangeable. SmartLink products are
compatible only with the SmartLink ACP, SmartLink station power module, and SmartLink
architectural control stations. Paradigm products are compatible only with the Paradigm
ACP, Paradigm station power modules, Unison Heritage architectural control stations, and
Paradigm touchscreens.
Step 1:
Pull Belden 8471 (or an equal type) control wiring
and a 14AWG ground
into the
DRd rack 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 LON connector from the right I/O board.
Step 4:
Loosen the terminal screws for as many wire pairs you are terminating.
Step 5:
Insert each white wire (typical) from the pairs into a “B” terminal on the connector
and tighten the screws firmly to secure the wire into the connector.
Step 6:
Insert each black wire (typical) from the pairs into an “A” terminal, next to the
previously installed “B” terminal on the connector and tighten the screws firmly to
secure the wire into the connector.
N o t e :
It is required that you terminate LinkPower station wiring and the auxiliary power
wiring in the rack the station power module will be installed.
