SignaLink
™
Bridge
Wireless Supervisory System
5401587 - REV B • 6/21
PAGE 1 OF 10
Potter Electric Signal Company, LLC • St. Louis, MO • Phone: 800-325-3936 • www.pottersignal.com
Description
The Potter SignaLink™ Bridge is a fully supervised wireless bridge
designed to be attached to any non-explosion-proof dry contact sprinkler
monitoring devices. It removes the need to hard wire sprinkler devices
to each other, and operates on a 2.4 GHz frequency. Devices are able to
communicate with each other up to a maximum of 800’. All enclosures are
weather and UV resistant polycarbonate. There are no external antennas.
The antenna is incorporated into the circuit board of each device.
Transmitter Model WTX-M
The transmitter enclosure has a threaded nipple, O-ring and locking nut
for mounting directly to the conduit entrance of any dry contact device
not listed as explosion proof. The transmitter provides two flying leads
for connection to the normally open contacts of any listed dry contact fire
alarm device. The connection is supervised for opens and shorts using the
supplied 5.1k ohm End Of Line Resistor. The transmitter does not latch,
it follows the status of the sprinkler switch it is connected to. The unit is
powered by two (2) AA size 1.5 volt Lithium Iron/Disulfide batteries. The
device includes a cover tamper switch as well as an LED to indicate when
the battery meter has been reset. See fig 1.
Receiver Model WRX-R
The receiver contains a fail safe dry contact output than can be monitored
by any UL listed fire panel zone or monitor module. The receiver enclosure
has an opening for 1/2” conduit. The receiver follows the status of the
transmitter so there is no reset switch, no sounder and no need for human
intervention. The receiver can be powered by the auxiliary power of the
fire panel or UL 864 or UL
1481 listed
24 VDC supply with regulated
limited power output and battery backup. See ordering information on
page 10 for optional power supply. The receiver contains Individual
LEDs for; Power, Alarm/Supervisory, transmitter or repeater trouble,
Tamper, Communication Error, Low Battery and EOLR trouble to aid in
troubleshooting. See fig 2.
Repeater Model WR
The repeater can be powered by one 3.6 volt D size Lithium Thionyl
battery or by the auxiliary power of the fire panel or UL 864 or UL
1481
listed
24 VDC supply with battery backup. See ordering information on
page 10 for optional power supply. Per UL 864, if the repeater is powered
by batteries it must be dedicated to only one transmitter repeater pair. If the
repeater is powered by a listed supply it can support multiple transmitters.
The device includes a cover tamper, pry-off tamper switch, an LED to
indicate when it is transmitting, and an LED to aid in resetting the battery
meter, see fig 3. For mounting to a post, use the optional post mounting kit
#0090221, see fig 6.
Technical Specifications
WTX-M Transmitter
Conduit Connection
½” NPT male
Dimensions
See Fig. 5
Enclosure
UV and Impact resistant Polycarbonate
Environmental Limitations
Indoor/Outdoor NEMA 4 / IP66 -40
°F to 150°
F (-40°C to 66°C)
Max Circuit Current
28uA
Max Circuit Voltage
3 VDC
Power Requirement
Two AA size Energizer 1.5 volt Lithium Iron/Disulfide battery
model L91, 3000 mAh
Reference Level
Maximum Ambient noise level allowed: -37 dBm
Service Use
NFPA 13, 13D, 13R and 72
Weight
0.5 lbs (0.23 KG)
WRX-R Receiver
Conduit Connection
Opening for 1/2” conduit, terminals for 12-22 AWG wires
Contact Rating
Common Alarm/Supervisory Relay: 1A at 30 VDC
Dimensions
See Fig. 4
Enclosure
UV and Impact resistant Polycarbonate
Environmental Limitations
Indoor/outdoor use with standard smoked cover. Indoor use only
with optional clear cover.
NEMA 4 (IP66) -40°F to
150°
F (-40°C to 66°C)
Power Requirement
24VDC at 55mA Normal, 75mA in Alarm
Reference Level
Maximum Ambient noise level allowed: -37dBm
Service Use
NFPA 13, 13D, 13R, 72
Weight
0.75lbs (0.34KG)
WR Repeater
Conduit Connection
Opening for 1/2” conduit, terminals for 12-22 AWG wires
Dimensions
See Fig. 4
Features
•
UL 864 10th edition and ULC S527 Listed
•
Fully supervised wireless communication bridge between all dry
contact devices
•
2.4 GHz communication format
•
Transmitter works on any dry contact product not listed as explosion
proof
•
Receiver provides dry contact output, compatible with any fire panel/
fire alarm system
•
Receiver does not require resetting or silencing, allowing it to be
installed remotely from the FACP
•
Eliminates the need for extensive wiring/conduits
Important:
This document contains important information on the installation and operation of the Potter SignaLink Wireless products. Please read all
instructions carefully before beginning installation. A copy of this document is required by NFPA 72 to be maintained on site.
