Guardian Technologies HR70 User Manual

Industrial Communications Worldwide

Industrial Telephone

Model HR70

Installation & Operation

Guardian

Telecom Inc.

Fax: [phone]

7000 Fisher Road S.E.

Calgary, Alberta, Canada T2H 0W3

Tel: [phone]

www.guardiantelecom.com

SN: H7XXXXX

1012 6721 A

Industry Canada

Industrie Canada

Ph: 403.258.3100 \ email:[e-mail] \ www.guardiantelecom.com

7552 - 10th Street N.E. Calgary, Alberta, Canada T2E 8W1

P003038 Rev. F 11/23/2004 10:28

Guardian Telecom Inc.
Installation and Operation

Model HR70

Table of Contents

Package Contents.................................................................................2

Overview...............................................................................................3

Features................................................................................................3

Installing the HR70................................................................................6

Field Repairs.........................................................................................7

Fuse Replacement................................................................................7

Programming the HR70 ........................................................................8

Operating the HR70..............................................................................8

Engineering Specifications....................................................................9

HR70 Models and Options..................................................................10

Accessories.........................................................................................10

Government Certification ....................................................................11

Warranty..............................................................................................12

Disclaimer ...........................................................................................12

Warning...............................................................................................12

Service Telephone Number ................................................................12

Feedback ............................................................................................12

Guardian Product Return....................................................................13

Table of Figures

Figure 1 - Features................................................................................4

Figure 2 - Overall Dimensions...............................................................4

Figure 3 - Installation.............................................................................5

Figure 4 - Wiring Connections...............................................................5

Package Contents

(1) HR70 Telephone
(1) Installation & Operation Manual

Page 2

Guardian Telecom Inc.
Installation and Operation

Model HR70

Overview

HR70 Industrial Telephone

The HR70 Telephone is designed to provide safe, reliable communication in areas prone to high
humidity, chemical vapors, dust and physical abuse.

Features

Enclosure

• 16 AWG steel, zinc dichromate plated and powder coated

Membrane Keypad

• weather tight

• 10 number memory

• Redial - last number (31 digits)

• Recall - obtains dial tone without hanging up handset

• Flash - 600ms timed loop break

• Pause - 3 second pause in programming

• Mute - disables handset microphone

• Softer/Louder – receiver volume controls

Encapsulated Circuitry

• circuit boards are resistant to corrosive agents (e.g. H
NH

) and environments with high humidity

3

Magnetic Reed Hook Switch

• no moving parts

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

Noise Reducing Microphone

• allows a high level of intelligibility in locations with high background
noise

Tone (DTMF) Operation

• factory set to tone (DTMF) dialing

• pulse dialing can be ordered or configured in the field

Heavy Duty Handset Cord

• withstands severe use

Hearing-Aid Compatible

• compatible with inductively coupled hearing-aid devices

S, SO2 and

2

Page 3

Guardian Telecom Inc.
Installation and Operation

Model HR70

SEALED MAGNETIC REED
HOOK SWITCH

HIGH IMPACT ABS HANDSET WITH
HEARING AID COMPATIBLE EARPIECE

MEMBRANE KEYPAD WITH
ADDITIONAL FEATURES

DURABLE CURLY CORD

Figure 1 - Features

5.2" [132mm]

Guardian

Telecom Inc.

Fax: [phone]

7000 Fisher Road S.E.

Calgary, Alberta, Canada T2H 0W3

Tel: [phone]

www.guardiantelecom.com

SN: H7XXXXX

1012 6721 A

2.1" [52mm]

2.2" [55mm]

Industry Canada

Industrie Canada

5.0" [127mm]

9.0" [229mm]

Figure 2 - Overall Dimensions

Page 4

Guardian Telecom Inc.
Installation and Operation

Model HR70

2.7" [69mm]

6.4" [163mm]

Figure 3 - Installation

FUSE

PULSE
TONE/

LINE

GER

SW

HAN

PHONE

RIN-

HK

Calgary, Canada

S/N: ____

Guardian Telecom Inc.

SURGE ARRESTOR

GROUND

TONE/PULSE

FROM HOUSING HARNESS

TIP AND RING

JUMPER

Figure 4 - Wiring Connections

Page 5

Guardian Telecom Inc.
Installation and Operation

Model HR70

Installing the HR70

• Follow all appropriate electrical codes and use only approved electrical
fittings for the installation.

• Choose a wall location that is free of obstructions and permits space for ½”
NPT conduit runs.

• Ensure mounting can support 4lbs (1.8kg) and any foreseeable additional
load.

• Ensure that none of the electrical connection circuits are live.

• Remove the eight (8) cover screws from the front of the unit and carefully

remove the front cover assembly. NOTE that the handset and all
electronics are attached to the front plate. The front cover may be
separated from the back box by disconnecting the harness plugs.

• Use the template provided or the enclosure itself to locate and drill holes for
#8 or M4 mounting screws.

• Secure the enclosure to the wall.

• Bring cable into the enclosure through the conduit entrance and attach

individual wires from the exchange (Tip/Ring/Ground) to the terminal block
(Tip & Ring are not polarity sensitive). If a conduit hub is used, ensure it is
grounded to the ground stud.

• To change the Tone/Pulse setting to pulse, if required:

o Move the jumper from pins 1 & 2 of the Tone/Pulse connector to

pins 2 & 3.

o To change the setting back to tone move the jumper back to pins

1 & 2.

• Reconnect the faceplate harness.

• Ensure all connections are tight, then replace and secure the cover.

• Connect the telephone into the system.

• Test the unit by making calls to and from another unit on the exchange.

See: Figure 2 - Overall
Dimensions

See: Figure 3 ­Installation.

See: Figure 4 - Wiring
Connections

See: Figure 4 - Wiring
Connections

Tip: The SP70A is
factory preset for DTMF
tone.

Page 6

Guardian Telecom Inc.
Installation and Operation

Model HR70

Field Repairs

Note: The only field repair permitted is to change the Tone/Pulse setting and

the replacement of fuses. All other repairs or alterations must be carried out by

See: Figure 4 - Wiring
Connections

Guardian Telecom or an Authorized Service Depot. See Warranty and
Disclaimer for details.

Fuse Replacement

• Disconnect the telephone from Tip and Ring power supplied by the PABX or
central office before attempting to replace the fuse.

• Carefully remove the front cover assembly and separate from the housing
by disconnecting the harness plugs. NOTE that the handset and all
electronics are attached to the front plate.

• Replace fuse in fuse holder with a 0.25 amp 250V 3AG fast blow fuse.

• Carefully replace the front plate and install all eight 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.

See: Figure 4 - Wiring
Connections

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.

Page 7

Guardian Telecom Inc.
Installation and Operation

Model HR70

Programming the HR70

A direct memory access register can be assigned to each of the 10 number
keys.
Each direct memory access register can contain up to 20 characters.

• Lift the telephone handset off the hook.

• Press Program to put the phone into programming mode.

• Press Memory.

• Press a number key 0-9.

• Enter the telephone number you want to store (e.g. 1-800-363-8010).

• If your phone requires you to dial 9 (or other digit) to access an outside line,

press the 9 key, then the Pause key, then enter the telephone number you
want to store (e.g. 9 PAUSE 1-800-363-8010).

• Press Program to leave programming mode and return to normal telephone
operation.

Operating the HR70

Manual Operation:

• Lift the handset and dial manually.

Automatic Memory Dialing:

• Lift the handset.

• Press Memory.

• Press a number key 0-9.

• The number stored in the register will automatically dial.

Tip: Valid characters are
0-9, *, # and Pause.

Tip: The number
selected is assigned to
the access register.

Tip: Valid keys for
manual dialing are 0-9, *
and #.

Tip: Program the HR70
to use this quick dialing
method.

Page 8

Guardian Telecom Inc.
Installation and Operation

Model HR70

Engineering Specifications

Electrical Performance

AUDIBLE RANGE FREQUENCY RESPONSE 300 – 3400 HZ
DIALING METHOD DTMF OR 40/60 PULSE AT 10 PPS
TRANSMIT OBJECTIVE LOUDNESS RATING (TOLR) -41 +/- 3 dB
RECEIVER VOLUME ADJUSTMENT +8.1 / -5.4 dB IN 5 STEPS OF 2.7 dB
RECEIVE OBJECTIVE LOUDNESS RATING (ROLR)

-AT NOMINAL VOLUME LEVEL 50 +/- 3 dB

-AT MAXIMUM VOLUME LEVEL 42 +/- 3 dB

-AT MINIMUM VOLUME LEVEL 55.5 +/- 3 dB

SIDE TONE OBJECTIVE LOUDNESS RATING (SOLR)

-AT NOMINAL VOLUME LEVEL 11 +/- 4 dB

-AT MAXIMUM VOLUME LEVEL 7 +/- 4 dB

-AT MINIMUM VOLUME LEVEL 14 +/- 4 dB
MEMORY DIAL 10 REGISTERS OF 20 DIGITS EACH
FLASH 600 MSEC TIMED DISCONNECT
MUTE PRESS KEY TO MUTE TRANSMITTER
REDIAL 31 DIGITS MAXIMUM
RINGER OUTPUT MAX 75 dB
FCC RINGER EQUIVALENCE 0.9B
SET IMPEDANCE 600 OHMS NOMINAL
MAXIMUM LOOP 15,000 FT (4,600 M) OF 22 AWG COPPER

Electrical

RINGER SENSITIVITY 40 – 100 V, 16 – 25 HZ
LINE VOLTAGE 24 – 56 VDC
LOOP CURRENT 20 - 120 MA
CONNECTION METHOD TERMINAL BLOCK
FUSE ¼ AMP 250V 3AG FAST BLOW

Environmental

WEATHERPROOF ENCLOSURE NEMA 3R
TEMPERATURE -40

O

TO +60

O

C (-40

O

TO +140

O

F)
HUMIDITY 0 TO 95% RH
DUSTPROOF FULLY GASKETTED ENCLOSURE AND MEMBRANE KEYPAD

Page 9

Guardian Telecom Inc.
Installation and Operation

Model HR70

Mechanical

HOOK SWITCH (CRADLE SWITCH) LIFE >1 000 000 OPERATIONS
BODY CONSTRUCTION 16AWG STEEL, ZINC DICHROMATE PLATED & POWDER

OVERALL DIMENSIONS H X W X D 9.0 X 5.0 X 5.2 INCHES (229 X 127 X 132 MM)
NET WEIGHT 4 LBS (1.8 KG)
HANDSET MATERIAL HIGH IMPACT ABS
MICROPHONE NOISE REDUCING ELECTRET
OPTIONAL MICROPHONE NOISE CANCELING DYNAMIC
RECEIVER HEARING AID COMPATIBLE
STANDARD MOUNTING VERTICAL WALL
WIRING ACCESS 7/8” DIAM. OPENING FOR OWNER SUPPLIED FITTING
HARDWARE MATERIAL STAINLESS STEEL

Compliance

INDUSTRY CANADA 1012 6721 A

COATED

FCC HQHCAN-22517-TE-E

HR70 Models and Options

• P6720 Model HR70 Industrial Telephone

• P6973 Model HR70(M) Heavy Duty Industrial Telephone With Armored Handset Cord and Metal

Keypad

• P6271 Model HR71 Industrial Ringdown Telephone

• P6972 Model HR71 Industrial Ringdown Telephone With Autodialer

• P6971 Model HR71 Heavy Duty Industrial Ringdown Telephone With Armored Handset Cord

Accessories

• P7225 Weatherproof ring detect relay

• P7229 Weatherproof off-hook detect relay (24V)

• Loud Ringers

• Strobe Lights

Page 10

Guardian Telecom Inc.
Installation and Operation

Model HR70

Government Certification

Attached to the telephone are labels for Industry Canada and the United States Federal Communications Commission. These identify
equipment certifications indicating the 60 and 70 series telephones meet certain telecommunications network protective, operational
and safety requirements. These agencies do 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.

Load Number (LN)

The Load Number (LN) assigned to each terminal device denotes the percentage of the total load to be connected to a telephone loop
used by the device. Termination on a loop may consist of any combination of devices subject only to the requirement that the total of
the Load Numbers of all the devices does not exceed 100.

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 Industry Canada or FCC registration number. The local telephone company may request disconnection of the telephone where
alterations or malfunctions affect the telephone’s performance.

United States Federal Communications Commission

This equipment generates, uses and can radiate radio frequency energy, and if not installed and used in accordance with the
instruction manual, may cause interference to radio communications. It has been tested and found to comply with the limits for Class
A computing device pursuant to Subpart J of Part 15 of FCC rules, which are designed to provide reasonable protection against such
interference when operated in a commercial environment. Operation of this equipment in a residential area is likely to cause
interference in which case the user, at his own expense, will be required to take whatever measures may be required to correct the
interference.

Interference

There is no guarantee that interference will not occur in a partic u lar inst allation. If interference to radio or television reception from this
equipment is suspected, proceed as follows:

1. Unplug the set, check for the interference.

2. Re-orient the receiving antenna.

3. Relocate the set with respect to the receiver.

4. Move the set away from the receiver.
If necessary, consult the supplier or an experienced radio/television technician for additional suggestions.

FCC Rules and Ringer Equivalence Number

This equipment complies with Part 68 of the FCC Rules. On the side of this equipment is a label that contains, among other
information, the FCC 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 five. 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 11

Guardian Telecom Inc.
Installation and Operation

Model HR70

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

For the purposes of installing the product and replacing fuses only this device may be opened and
reassembled by qualified personnel, following the instructions in the product manual.

High voltages may be present in this device when connected to telephone wiring

Service Telephone Number

1-800-363-8010

Guardian Telecom provides a customer service telephone number which is toll-free within North
America. If you need assistance when installing or operating this product, please call the toll-free
telephone number between regular business hours (8:00AM-5:00PM), Mountain Standard Time. If you
are calling outside of 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 through our web site product return page. This number must be included
with your return address and the name of the person to contact.

Guardian Telecom Inc.

7552 - 10th Street N.E.

Calgary, Alberta, Canada T2E 8W1

Toll-free 1-800-363-8010

Ph. [phone]

Fax. [phone]

www.guardiantelecom.com

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 12

Guardian Telecom Inc.
Installation and Operation

Model HR70

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 Guardian Telecom to obtain authorization to
return the product. This can be done by completing a RMA form online at
www.guardiantelecom.com, or by calling the service telephone number given in
this manual.

• 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.

• (Where a product is being returned for repair from outside of Canada, customs
documentation must show the product’s serial number, date of export [date of
purchase], and a notation that the equipment is: “Canadian goods returning.”)

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 by the factory.

• 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 13

Guardian Telecom Inc.
Installation and Operation

Model HR70

Notes:

Model No.
Part No.
Serial No.
Date of Purchase

Page 14

Guardian Telecom Inc.

7552 - 10th Street N.E.

Calgary, Alberta, Canada T2E 8W1

Toll-free 1-800-363-8010

Ph. [phone]

Fax. [phone]

www.guardiantelecom.com

E-mail: [e-mail]

Industrial Communications Worldwide

© Guardian Telecom Inc. 2004