Guardian Technologies Telephone SCR 11 User Manual

Industrial Communications Worldwide  
Industrial Ringdown/Autodialer Telephone  
SCR Series  
Installation & Operation  
SCR 11  
SCR 41  
P005603 Rev. A 060612 5/28/2007 3:58 PM  
7552 - 10th Street N.E. Calgary, Alberta, Canada T2E 8W1  
 
Guardian Telecom Inc.  
Installation and Operation  
SCR Series  
Overview  
SCR Industrial Ringdown/Autodialer Telephone  
The SCR is a rugged industrial telephone designed to provide safe, reliable, point to point  
communication in harsh environments such as refineries, mills, plants, warehouses or areas with  
high humidity.  
The SCR Telephone may be supplied with an optional Auto Dialer or dialing may be programmed  
through a PABX. If an Auto Dialer is ordered with the SCR refer to the manual for the Auto Dialer for  
instructions on programming and for compliances.  
Features  
Enclosure  
16 Gauge steel, zinc dichromate plated and powder coated  
Epoxy Resin Coating  
encapsulates all parts on main circuit board  
resistant to corrosive agents (eg. H2S, SO2, and NH3), and high  
humidity  
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.  
Receiver Volume Control  
Switch in handset provides 13.5dB of range  
Heavy Duty Handset Cord (SCR 11)  
withstands abusive use  
Armored Handset Cord (SCR 41)  
vandal resistant  
Hearing-Aid Compatibility  
compatible with inductively coupled hearing-aid devices  
Page 3  
 
Guardian Telecom Inc.  
Installation and Operation  
SCR Series  
MAGNETIC REED HOOK SWITCH  
MAGNETIC REED HOOK SWITCH  
16 GA STEEL - ZINC DICHROMATE  
PLATED AND POWDER COATED  
16 GA STEEL - ZINC DICHROMATE  
PLATED AND POWDER COATED  
ID & APPROVALS  
ID & APPROVALS  
HIGH IMPACT ABS HANDSET  
HEARING AID COMPATIBLE EARPIECE  
HIGH IMPACT ABS HANDSET  
HEARING AID COMPATIBLE EARPIECE  
WIRING ACCESS  
WIRING ACCESS  
HEAVY DUTY HANDSET CORD  
ARMORED HANDSET CORD  
SCR 11  
SCR 41  
Figure 1 - Features  
5.1" [130mm]  
2.2 [56]  
2.7" [69mm]  
5.0" [127mm]  
Figure 2 - Overall Dimensions  
Page 4  
 
Guardian Telecom Inc.  
Installation and Operation  
SCR Series  
GASKET  
FUSE  
FACEPLATE  
TIP  
RING  
GROUND  
HARNESS  
SURGE ARRESTOR  
GROUND  
TERMINAL STRIP  
BEL-Ringer  
BR-3-39  
2799 #45  
MADE IN USA BY  
FLOYD BELL INC.  
COLUMBUS, OH  
Figure 3 - Installation SCR-11  
FACEPLATE  
HARNESS  
TIP  
RING  
GROUND  
B
FUSE  
SURGE ARRESTOR  
GASKET  
GROUND  
TERMINAL STRIP  
B
BEL-Ringer  
BR-3-39  
2799 #45  
MADE IN USA BY  
FLOYD BELL INC.  
COLUMBUS, OH  
~
Figure 4 - Installation SCR-41  
Page 5  
 
Guardian Telecom Inc.  
Installation and Operation  
SCR Series  
Installing the SCR  
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  
cable or conduit runs.  
Ensure mounting can support 4 lbs. (1.8 kg) and any additional foreseeable  
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 to locate and drill holes for #8 or M4 mounting  
screws.  
Tip: Use #8 or M4  
screws to secure the unit  
to the wall.  
Attach the back box to the wall. If weather resistance is important in your  
application select washers that will assist in sealing the mounting holes.  
Wiring the SCR to the Telephone System  
Fit an appropriate cable gland, grommet or conduit connector to the 7/8”  
opening in the bottom of the enclosure.  
See: Figure 3 -  
Installation SCR-11 &  
Figure 4 - Installation  
SCR-41  
Bring cable into the enclosure through the opening and attach individual  
wires from the exchange (Tip/Ring/Ground) to the connector (Tip & Ring are  
not polarity sensitive). If a conduit hub is used, ensure that it is grounded to  
the ground stud.  
Ensure all connections are tight, then replace and secure the cover.  
Connect the telephone into the system.  
The SCR Telephone may be supplied with an optional Auto Dialer or dialing  
may be configured by the PABX. If an Auto Dialer is ordered with the SCR,  
refer to the manual for the Auto Dialer for instructions on programming and  
for compliances.  
Test the unit by calling to and from another unit on the exchange.  
Operating the SCR  
The SCR Ringdown/Autodialer phone is designed for automatic calling  
simply by removing the handset from the cradle.  
Page 6  
 
Guardian Telecom Inc.  
Installation and Operation  
SCR Series  
Field Repairs  
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 to make repairs.  
See: Figure 3 -  
Installation SCR-11 &  
Figure 4 - Installation  
SCR-41  
Carefully remove the front cover assembly and separate from the housing  
by disconnecting the harness plugs. NOTE that the electronics are  
attached to the front plate.  
Perform the necessary repairs or adjustments.  
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.  
Fuse Replacement  
See: Figure 3 -  
Installation SCR-11 &  
Figure 4 - Installation  
SCR-41  
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.  
Page 7  
 
Guardian Telecom Inc.  
Installation and Operation  
SCR Series  
Engineering Specifications  
ELECTRICAL PERFORMANCE  
AUDIBLE RANGE FREQUENCY RESPONSE  
TRANSMIT OBJECTIVE LOUDNESS RATING (TOLR)  
RECEIVER VOLUME ADJUSTMENT  
RECEIVE OBJECTIVE LOUDNESS RATING (ROLR)  
-AT NOMINAL VOLUME LEVEL  
-AT MAXIMUM VOLUME LEVEL  
-AT MINIMUM VOLUME LEVEL  
SIDE TONE OBJECTIVE LOUDNESS RATING (SOLR)  
-AT NOMINAL VOLUME LEVEL  
-AT MAXIMUM VOLUME LEVEL  
-AT MINIMUM VOLUME LEVEL  
RINGER OUTPUT  
300 – 3400 HZ  
-38 +/- 3 dB  
+8.1 / -5.1 dB IN STEPS OF 2.7 dB  
50 +/- 3 dB  
41.9 +/- 3 dB  
55.4 +/- 3 dB  
11 +/- 4 dB  
7 +/- 4 dB  
14 +/- 4 dB  
>75 dB  
FCC RINGER EQUIVALENCE  
0.8B  
SET IMPEDANCE  
600 OHMS NOMINAL  
MAXIMUM LOOP  
15,000 FEET (4,600 METERS) OF 22 AWG  
COPPER  
ELECTRICAL REQUIREMENTS  
RINGER SENSITIVITY  
LINE VOLTAGE  
40 – 100 V, 16 – 25 HZ  
24 – 56 VDC  
LOOP CURRENT  
20 - 120 mA  
CONNECTION METHOD  
ENVIRONMENTAL  
SURGE ARRESTOR / TERMINAL BLOCK  
WEATHERPROOF  
ENCLOSURE NEMA 3R  
TEMPERATURE  
-40O TO +60O C (-40O TO +140O F)  
MECHANICAL  
HOOK SWITCH (CRADLE SWITCH) LIFE  
BODY CONSTRUCTION  
>1 000 000 OPERATIONS  
16 GAUGE STEEL, ZINC DICHROMATE  
PLATED AND POWDER COATED  
DIMENSIONS (H x W x D)  
NET WEIGHT  
9 X 5.0 X 5.2 INCHES (229 X 127 X 132 MM)  
4 LBS (1.82 KG)  
HANDSET MATERIAL  
MICROPHONE  
HIGH IMPACT ABS  
NOISE REDUCING ELECTRET  
NOISE CANCELING DYNAMIC  
HEARING AID COMPATIBLE  
OPTIONAL MICROPHONE  
RECEIVER  
Page 8  
 
Guardian Telecom Inc.  
Installation and Operation  
SCR Series  
STANDARD MOUNTING  
CONNECTION FITTINGS  
HARDWARE MATERIAL  
COMPLIANCES  
VERTICAL WALL  
7/8” DIAM. OPENING FOR OWNER SUPPLIED FITTING  
STAINLESS STEEL  
INDUSTRY CANADA  
1012 6721 A  
FCC  
HQHCAN-22517-TE-E  
Accessories  
P7224 Potted ring detect relay  
P7225 Weather Proof ring detect relay  
P7227 Potted off-hook detect relay  
P7232 Weather Proof off-hook detect relay  
PXXXX External Loud Ringer  
Replacement Parts  
Description  
Part No.  
P004026  
P006263  
P005479  
P005477  
P002786  
P004371  
P000028  
P004538  
P002080  
P005391  
P005699  
P005582  
P002782  
P005917  
P002992  
P002991  
P002840  
P004152  
P002787  
Faceplate SCR-11  
Faceplate SCR-41  
Handset Shell C/W Volume Control & 22” Armored Cord  
Handset Shell C/W Volume Control & 6’ Curly Cord  
Handset Cradle  
Handset Retainer – SCR-41 Only  
Microphone Cartridge – Noise Reducing  
Microphone Cartridge – Noise Canceling  
Receiver Cartridge  
Handset Assembly – C/W Volume Control & 6’ Curly Cord For SCR-11  
Handset Assembly – C/W Volume Control & 22” Armored Cord For SCR-41  
Telephone Circuit Board  
Ringer – Floyd Bell BR-3-39  
Reed Switch  
Surge Arrestor – TII 126L1  
Fuse – Glass 0.25 Amp 250V  
Housing SCR-11  
Housing SCR-41  
Gasket – Faceplate  
Page 9  
 
Guardian Telecom Inc.  
Installation and Operation  
SCR Series  
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  
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  
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. (403) 258-3100  
Fax. (403) 253-4967  
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 10  
 
Guardian Telecom Inc.  
Installation and Operation  
SCR Series  
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  
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 11  
 
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  
(Click to open message box)  
Industrial Communications Worldwide  
© Guardian Telecom Inc. 2005  
 

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