Industrial Communications Worldwide
Weather Resistant Industrial Telephones
WRT-A Series
Installation & Operation
WRT-30-A
WRT-10-A
WRT-40-A
P006290 Rev. A 5/19/2005 8:09 AM
7552 - 10th Street N.E. Calgary, Alberta, Canada T2E 8W1
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Guardian Telecom Inc.
Installation and Operation
Model WRT-A
Overview
WRT-A Weather Resistant Telephone Series
WRT-A telephones are designed to provide safe, reliable communication in areas prone to high
humidity, chemical vapors, dust and physical abuse. Several variations and options are available to
suit the end user’s requirements.
Standard Features On All Models
Enclosure
•
•
Weather tight, rugged Valox® & steel
Spring loaded hinged door
Faceplate
16 Gauge steel – satin coat primed and powder coated, with wiring
access to surge arrestor
Mounting Plate
Stainless steel back plate for ease of mounting
Encapsulated Circuitry
•
•
•
Circuit boards are resistant to corrosive agents (e.g. H2S, SO2, and
NH3), and environments with high humidity
Surge Arrestor
•
Protects the user in the event of a high voltage spike on the telephone
line
Fuse
Prevents damage to the electronic circuits in the event of a high
voltage spike on the telephone line
Magnetic Reed Hook Switch
No moving parts
Tone (DTMF) Operation
•
•
•
•
Factory set to tone (DTMF) dialing
Pulse dialing can be ordered or configured in the field
6’ Heavy Duty Handset Cord (Not Available With WRT-A-40)
Withstands severe use
Hearing-Aid Compatible (HAC) Receiver
•
•
Compatible with inductively coupled hearing-aid devices
Page 3
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Guardian Telecom Inc.
Installation and Operation
Model WRT-A
MAGNETIC REED HOOK SWITCH
3X4 KEYPAD
(WRT-10-WATERPROOF, WRT-30 &
WRT-40 - METAL)
16 GA STEEL, SATIN COAT
PRIMED AND POWDER COATED
VELCRO DOOR LATCH
ID & APPROVALS
HEAVY DUTY HANDSET
CORD
WIRING ACCESS PLATE
Figure 1 - Features - Typical - Standard Models
Ø0.3" [Ø7mm]
8.8" [224mm]
3.0" [75mm]
9.7" [246mm]
Figure 2 - Overall Dimensions
Page 4
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Guardian Telecom Inc.
Installation and Operation
Model WRT-A
Installing the WRT-A
•
•
WRT-A telephones shall be installed by qualified service personnel.
See: Figure 3 - Setting
Dialing Mode &
Installation
The WRT-A is set to tone dialing when shipped. If pulse dialing is required
see the section on Setting Dialing Mode.
•
•
•
•
Follow all appropriate electrical codes and use only approved electrical
fittings for the installation.
See: Figure 2 - Overall
Dimensions
Choose a wall location that is free of obstructions and permits space for
wiring.
Ensure mounting can support 6.5 lbs (2.95 kg) plus any additional,
foreseeable load.
Ensure that none of the electrical connection circuits are live.
Mounting
•
Use the template or the unit itself to locate and drill holes for mounting
screws.
•
Secure the unit to the wall.
Hard Wiring the WRT-A to the Telephone System
•
•
•
Remove the wiring access cover plate.
Install a suitable conduit hub or cable gland in the cable entrance hole.
Bring cable into the enclosure through the cable entrance and attach
individual wires from the exchange – Tip/Ring/Ground – to the surge
arrestor (Tip & Ring are not polarity sensitive).
WARNING
Protective earthing terminal of the phone shall be properly hardwired
to a protective earth system.
•
Replace the wiring access cover plate.
Final Check
•
Check the set visually for loose screws and trapped wires. Check that the
handset hangs freely in the cradle and that the handset cord is not trapped
by the door.
•
•
Check that the faceplate is snug to its gasket, paying particular attention to
the area around the cradle. Check that the door closes flush to the housing.
Test the unit by calling to and from another unit on the exchange.
Operation
•
Once your Model WRT-A Telephone has been properly installed and
energized, operation is identical to most other single line telephones.
WARNING
Due to magnetic fields, it is possible that dangerous objects may get trapped
within the earcap region of this device.
Page 5
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Guardian Telecom Inc.
Installation and Operation
Model WRT-A
Setting Dialing Mode
The WRT-A is shipped from the factory set for DTMF (Tone) dialing mode. If
loop disconnect (Pulse) dialing is required proceed as follows.
See: Figure 3 - Setting
Dialing Mode &
Installation
•
Loosen the five captive screws in the faceplate and swing the faceplate to
the left. If the set is on a vertical surface the faceplate will stay open like a
book in this position. Take care not to disturb the internal wiring.
•
•
•
Change the position of the Tone/Pulse jumper on the circuit board to Pulse,
as indicated on the label.
The set will now be in pulse dialing mode, it can be returned to tone mode
by changing the position of the jumper back to the Tone position.
Carefully replace the front plate and install all five screws. Do not over
tighten the cover screws, there is a flexible gasket between the cover and
the body. Excessive tightening of the screws deforms the gasket and
reduces the weather resistance of the set.
TONE/PULSE
JUMPER
F
Guardian Telecom Inc.
S/N:____________
Calgary, Canada
PHONE RIN- HK
LINE GER SW
TONE/
PULSE
HANDSET
GROUND CONNECTION
TIP & RING CONNECTION
Figure 3 - Setting Dialing Mode & Installation
Page 6
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Guardian Telecom Inc.
Installation and Operation
Model WRT-A
Field Repairs & Adjustments
Field repairs may only be carried out by qualified technicians using OEM parts.
Substitution of parts voids warranty and may pose a hazard to users of the
equipment.
See: Replacement Parts
•
•
Disconnect the telephone from Tip and Ring power supplied by the PABX
or central office before attempting repairs.
See: Figure 4 - Fuse
Replacement
Loosen the five captive screws in the faceplate and swing the faceplate to
the left. If the set is on a vertical surface the faceplate will stay open like a
book in this position. Take care not to disturb the internal wiring.
•
•
Perform the necessary repairs or adjustments.
Note: Ensure that
connections are secure
before replacing
faceplate.
Carefully replace the front plate and install all five screws. Do not over
tighten the cover screws, there is a flexible gasket between the cover and
the body. Excessive tightening of the screws deforms the gasket and
reduces the weather resistance of the set.
Fuse Replacement
•
Remove the old fuse by pushing in the end cap of the fuse holder and
turning counterclockwise to open. Insert a new 0.25 amp, 250Volt, 3AG
fast blow fuse and close the fuse holder.
WARNING!
•
Replace only with a 0.25 amp 250V 3AG fast blow fuse. Failure to do so
will void the warranty.
•
If, on reconnecting power, the fuse fails, check the telephone system
wiring. The fuse protects the Tip and Ring line from the telephone system.
It is usually powered at 48 volts DC and must not be connected to 120 volts
AC.
FUSE
0.25 AMP .3AG
FAST BLOW
GROUND CONNECTION
GROUND
TIP & RING CONNECTION
Figure 4 - Fuse Replacement
Page 7
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Guardian Telecom Inc.
Installation and Operation
Model WRT-A
Engineering Specifications
*ELECTRICAL PERFORMANCE
AUDIBLE RANGE FREQUENCY RESPONSE
DIALING METHOD
300 – 3400 HZ
DTMF OR 33/66 PULSE AT 10 PPS
SHORT 8 dB +/- 4 dB
SHORT -4 dB +/- 4 dB
>11 dB
SEND LOUDNESS RATING (SLR) dB
RECEIVE LOUDNESS RATING (RLR) dB
SIDE TONE MASKING RATING (STMR)
RINGER OUTPUT
75 dB MAXIMUM
RINGER EQUIVALENCE
0.5
SET IMPEDANCE
600 OHMS NOMINAL
15,000 FT (4,600 M) OF 22 AWG COPPER
MAXIMUM LOOP
ELECTRICAL
RINGER SENSITIVITY
LINE VOLTAGE
40 – 100 V, 16 – 25 HZ
24 – 56 VDC
LOOP CURRENT
20 - 120 mA
SURGE ARRESTOR / TERMINAL BLOCK
CONNECTION METHOD
FUSE
¼ AMP 250 VOLT 3AG FAST BLOW
ENVIRONMENTAL
WEATHERPROOF
TEMPERATURE
HUMIDITY
ENCLOSURE NEMA 3R
-40O TO +60O C (-40O TO +140O F)
0 TO 95% RH
DUSTPROOF
FULLY GASKETED FACEPLATE & WEATHERPROOF KEYPAD
MIL-STD-810E SALT FOG
CORROSION RESISTANT
MECHANICAL
HOOK SWITCH (CRADLE SWITCH) LIFE
BODY CONSTRUCTION
DIMENSIONS
>1 000 000 OPERATIONS
GE VALOX 357® ENGINEERING POLYMER
12 X 9.6 X 3.9 INCHES (305 X 245 X 99 MM)
NET WEIGHT
6.5 LBS (2.95 KG)
HANDSET MATERIAL
MICROPHONE
HIGH IMPACT ABS
NOISE REDUCING ELECTRET
NOISE CANCELING DYNAMIC
HEARING AID COMPATIBLE (HAC)
VERTICAL WALL
OPTIONAL MICROPHONE
RECEIVER
STANDARD MOUNTING
WIRING ACCESS
7/8” DIAM. OPENING FOR OWNER SUPPLIED FITTING
Page 8
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Guardian Telecom Inc.
Installation and Operation
Model WRT-A
COMPLIANCE
ACA
N14510
DOC
1012 6721 A
FCC
HQHCAN-22517-TE-E
ENCLOSURE NEMA 3R
MIL-STD-810E
WEATHERPROOF
ENVIRONMENTAL SURVIVABILITY
Replacement Parts
Part No.
Description
P005765
P003022
P002294
P002554
P005961
P004371
P000028
P004538
P002080
P006307
P004259
P006291
P006281
P005576
P000907
P006295
P002782
P005917
P002992
P002991
P000126
P003045
P002988
P001706
Faceplate WRT-A (All Models)
Handset Shell C/W 22” Armored Cord
Handset Shell Only – For WRT-10-A & WRT-30-A
Cord – Handset 6’
Handset Cradle C/W Reed Switch
Handset Retainer – WRT-40-A Only
Microphone Cartridge – Noise Reducing
Microphone Cartridge – Noise Canceling
Receiver Cartridge
Handset Assembly Complete – C/W 6’ Curly Cord For WRT-10-A & WRT-30-A
Handset Assembly Complete – C/W 22” Armored Cord For WRT-40-A
Keypad Assembly – Plastic C/W Telephone Circuit Board For WRT-10-A
Telephone Circuit Board
Keypad – Plastic For WRT-10-A
Keypad Cover – Teleseal For WRT-10-A
Keypad – Metal For WRT-30-A & WRT-40-A
Ringer – Floyd Bell BR-3-39
Reed Switch
Surge Arrestor – TII 126L1
Fuse – Glass 0.25 Amp 250V
Housing
Backplate
Door C/W Velcro Latch
Hinge Pin – 8.390 Nylon
Door Spring
Hinge Pin Retaining Ring
P001488
P002995
Page 9
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Guardian Telecom Inc.
Installation and Operation
Model WRT-A
Government Certification
Attached to the telephone is a label for the Australian Communications Authority. This identifies
equipment certifications indicating the WRT-A series telephones meet certain telecommunications
network protective, operational and safety requirements. This agency does not guarantee the
equipment will operate to the user's satisfaction.
Before installing this telephone equipment, users should ensure it is permissible to connect the
equipment to facilities of the local telecommunications company.
Equipment must be installed using acceptable connection methods. In some cases, the telephone
users inside wiring, associated with a single line service, may be extended by a certified connector
assembly (telephone extension cord). The customer should be aware that in some situations
compliance with the above conditions may not prevent degradation of service.
Repairs to certified equipment should be made by a supplier designated authorized maintenance
facility.
For their own protection users should ensure the electrical ground connections of the power utility,
telephone lines and internal metallic water pipe systems, if present, are connected. This precaution
may be particularly important in rural areas.
CAUTION: Users should not attempt to make ground connections, but should contact the appropriate
electrical inspection authority or electrician.
Notification to Telephone Company
Upon request, the customer must notify the telephone company of the particular line to which the
connection will be made and provide the Australian Communications Authority registration number. The
local telephone company may request disconnection of the telephone where alterations or malfunctions
affect the telephone’s performance.
ACA Rules and Ringer Equivalence Number
This equipment complies with the regulation AS/ACIF S002:2001 Australian Standard Analogue
internetworking and non-interference requirements for customer equipment for connection to public
switched telephone networks. On the side of this equipment is a label that contains, among other
information, the ACA registration number and ringer equivalence number (REN) for this equipment. If
requested, this information must be provided to the telephone company.
The REN is used to determine the quantity of devices which may be connected to the telephone line.
Excessive RENs on the telephone line may result in the devices not ringing in response to an incoming
call. In most, but not all areas, the sum of the RENs should not exceed three. To be certain of the
number of devices that may be connected to the line, as determined by the total RENs, contact the
telephone company to determine the maximum REN for the calling area.
Service changes and Limitations
The telephone company may make changes in its facilities, equipment, operations, or procedures that
could affect the operation of the equipment. If this happens, the telephone company will provide
advance notice in order for you to make the necessary modifications in order to maintain uninterrupted
service.
This equipment can not be used on public coin telephone service as provided by your telephone
company. Connection to party line service is subject to state tariffs (contact the state public utility
commission, public service commission or corporate commission for information.)
Page 10
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Guardian Telecom Inc.
Installation and Operation
Model WRT-A
Warranty
Guardian Telecom warrants your product to be free of defects in material and workmanship for a period
of one year. Guardian Telecom will repair or replace any defective unit that is under warranty free of
charge.
This warranty is null and void if any non-authorized modifications have been made to this product, or if
it has been subjected to misuse, neglect, or accident. This warranty covers bench repairs only; such
repairs must be made at Guardian Telecom or an authorized service depot. Guardian Telecom is not
responsible for costs incurred for on-site service calls, freight, or brokerage.
A return authorization must be obtained prior to warranty claims or repairs.
Disclaimer
The products covered by this manual are designed for use in Industrial Environments and/or Hazardous
Locations. Due to the range of possible applications for these instruments the manufacturer will not be
responsible for damages or losses of any kind suffered as a result of the use of this product, including
consequential damages.
Warning
This device may be opened and reassembled by qualified personnel only, for the purposes of installing
the product, making adjustments and replacing components, following the instructions in the product
manual.
High voltages may be present in this product when connected to telephone wiring.
Service Telephone Number
1-800-363-8010 – North America
Guardian Telecom provides a customer service telephone number which is toll-free within North
America. The Authorized Dealer/Service Depot is listed below for your area. If you need assistance
when installing or operating this product, please call the toll-free telephone number or the Authorized
Service Depot between regular business hours (8:00AM-5:00PM). If you are calling outside regular
business hours, please leave a detailed message, and a member of Guardian Telecom’s Service
Department will return your call as soon as possible. If your product requires service, Guardian
personnel will supply you with an RMA (return materials authorization) number over the telephone or
included with your return address and the name of the person to contact.
Qmax Group Pty Ltd
21 Jubaea Crt
Canning Vale
Western Australia 6155
Phone (08) 9455-4671
Fax (08) 6210-1749
Email : [email protected]
(Click to open message box)
Feedback
Guardian Telecom continually strives to make reliable, durable, and easy to use products. If you, as an
installer or user of our equipment, have any suggestions for improvements to this or any of our products
or documents, including this manual, we would appreciate hearing from you.
Page 11
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Guardian Telecom Inc.
Installation and Operation
Model WRT-A
Guardian Product Return
Guardian products have been quality tested and are in full working order when shipped from
the factory, given the rugged nature of these products shipping is not expected to damage a
unit. In the unlikely event of a malfunction, Guardian follows the three step procedure below.
Step I - On-Site Correction
•
•
•
The most common source of difficulties with a new product is improper installation in one of
two ways: incorrect wiring connections or connection to an incorrect power source.
Product wiring needs to be properly connected to the on-site wiring. Correct wiring
instructions are shown in the user manual included with the product.
Connecting a telephone to a standard power source, rather than tip & ring, will blow the
telephone’s internal, user-replaceable fuse. In the event of fuse burn-out, disconnect the
telephone from the power source, replace the fuse, and reconnect following the wiring
diagrams provided with the product.
Step II - Return Materials Authorization (RMA)
•
•
•
When a product has been installed following user manual instructions, and the unit fails to
operate, the user must contact the Service Number indicated on the previous page, to
obtain authorization to return the product.
After providing information on the product, the owner and the nature of the problem,
Guardian will issue a RMA number, to be shown on documentation returned with the
product.
In addition to the RMA number, shipping documents should include name, address and
telephone number of the owner along with contact information for the person responsible
for the repair and/or the user who identified the malfunction.
Step III - Factory Authorized Service
•
Once received, each product is carefully inspected and tested. If the product is under
warranty, repairs are completed and the product returned to the owner, generally within
five working days of receipt.
•
A product that has been subjected to misuse, neglect or accident or is beyond the warranty
period will be evaluated. The service department will provide the owner’s representative
with a repair cost estimate. Once approved, repairs are completed and the product
returned, generally within five working days.
Page 12
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Guardian Telecom Inc.
Installation and Operation
Model WRT-A
Notes:
Model No.
Part No.
Serial No.
Date of Purchase
Page 13
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Guardian Telecom Inc.
7552 - 10th Street N.E.
Calgary, Alberta, Canada T2E 8W1
Toll-free 1-800-363-8010
Ph. (403) 258-3100
Fax. (403) 253-4967
E-mail: mailto:[email protected]
(Click to open message box)
Industrial Communications Worldwide
© Guardian Telecom Inc. 2005
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