P002640 Rev. G - Guardian Telecom Inc.
Contents
1. 16 Figure 13 I D and Compliance 18 Package Contents 1 EXT 401 Telephone 1 Installation amp Operation Manual Page 2 Guardian Telecom Inc Installation and Operation Model EXT 401 Overview Model EXT 401 Explosion Proof Telephone This explosion proof telephone provides safe and reliable communication in hazardous locations up to and including Class Division 1 see Figure 13 1 0 and Compliance Only standard wiring and fittings are required to connect the telephone to the system no barrier is necessary Since the heavy duty cast aluminum enclosure is basically soundproof an external device to signal incoming calls is required The signaling device may be actuated by an optional internal or external ring detect relay Features Enclosure e Cast copper free aluminum with powder coat finish Internal Sealed Cavities e Completely seal the unit Keypad e Standard configuration with an additional row of buttons for Last Number Redial Link Flash to access PABX features and Line Release to duplicate hanging up the handset Link and Redial buttons may be replaced by Volume Up and Volume Down e One inch diameter buttons for gloves on operation Circuitry Coating e Circuit boards have a UV cured epoxy coating which provides protection from corrosive agents such as H2S SOs and environments with high2. Product Specifications Electrical Performance AUDIBLE RANGE FREQUENCY RESPONSE 300 3400 Hz DIALING METHOD DTMF or 40 60 PULSE 10 PPS TRANSMIT OBJECTIVE LOUDNESS RATING TOLR 38 4dB RECEIVE OBJECTIVE LOUDNESS RATING ROLR TYPICAL 52 4dB SIDE TONE OBJECTIVE LOUDNESS RATING SOLR TYPICAL 20 3DB MAXIMUM LOOP RINGER OUTPUT N A FCC RINGER EQUIVALENCE WITH OPTIONAL RING 0 9A 1 9B DETECT RELAY INSTALLED RING DETECT RELAY RATINGS OPTIONAL 10 Amps AT 250VAC FLASH 600 MSEC TIMED DISCONNECT REDIAL 13 DIGITS MAXIMUM 15 OF 22 AWG COPPER Electrical Requirements LINE VOLTAGE 24 56 VDC LOOP CURRENT 20 120 MA RINGER DETECT RELAY SENSITIVITY OPTIONAL 40 100 V 16 25 Hz CONNECTION METHOD FACTORY SEALED WIRING THROUGH 1 2 CONDUIT ENTRY FUSE Environmental 2AG 0 25 250 VOLT WEATHERPROOF amp WATERTIGHT ENCLOSURE NEMA 4 TEMPERATURE 40 To 60 C 40 To 140 F HUMIDITY 0 TO 95 RH NON CONDENSING DUSTPROOF 34 FLAT FLANGE DUSTPROOF JOINTS Mechanical HOOK SWITCH CRADLE SWITCH LIFE gt 1 000 000 OPERATIONS BODY CONSTRUCTION COPPER FREE CAST ALUMINUM WITH POWDER COAT FINISH DIMENSIONS 325 X 173 X 122 MM 12 8 X 6 8 X 4 8 INCHES WEIGHT 7 95 KG 17 5 LBS HANDSET MATERIAL HIGH IMPACT ABS HANDSET CORD 3 0 M 10 FT FIELD REPLACEABLE WITH Low TEMPERATURE P
3. 257 mm 4 4 111 mm 4 8 122 mm Eh 8 5 216 mm OOGO 06965656 OOOOH OOVSO 06565656 OOS 12 8 326 mm 11 3 286 mm 93 4 6 117 mm Figure 2 Dimensions Page 4 Guardian Telecom Inc Installation and Operation Model EXT 401 In no case should this telephone apparatus or wiring be installed in a location where acetylene may be present in the atmosphere Two back cover retaining bolts on the model EXT 401 are factory sealed Damage to the seals voids the warranty and safety approvals and may compromise unit safety It is the responsibility of the installer to advise a supervisor if any telephone equipment or wiring in a hazardous location may not comply with regulations and standards applicable to that location Avoid creating a spark by striking tools or metal objects together against concrete stone or any similar substance Test equipment capable of producing an electric spark must not be used in an explosive atmosphere All apparatus should be completely assembled and properly sealed before reconnecting power General Requirements An EXT 401 telephone should only be installed with proper authorization It is necessary for the customer and the telephone company to have a definite agreement regarding the location of the telephone unit auxiliary apparatus and protector i e lightning arrestor at the dem
4. Junction Box Figure 3 Typical Installation Note Models without volume control are not approved by the FCC and Industry Canada they must therefore not be connected directly to a Central Office line Page 7 Guardian Telecom Inc Installation and Operation Model EXT 401 Wiring For Tip amp Ring After mounting the telephone follow these steps NOTE The ExT 401 is factory set for tone DTMF dialing unless pulse dialing was specified Switching in the field is not possible Run tip ring and ground wires from the local exchange into the lower junction See Figure 4 Lower box The tip and ring wires must not be connected to the local exchange until Junction Box Wiring installation is completed A sealing fitting must be installed within 45 7 cm 18 on the exchange side of the lower junction box Attach the tip and ring wires to the orange and blue wires from telephone using twist on wire connectors Attach 10 ring lugs to the end of the three green wires and attach these wires to the ground screw in the junction box Check the wiring and close the junction box GROUND 227 amp RING GREEN BLUE amp ORANGE KN NOT POLARITY SENSITIVE UN FROM EXCHANGE TIP RING GROUND Figure 4 Lower Junction Box Wiring Page 8 Guardian Telecom Inc Installation and Operation Model EXT 401 Wiring For Peripheral Signaling Device Moun
5. another Page 5 Guardian Telecom Inc EXT 401 Models PART NO DESCRIPTION No Volume Control Has LINK amp REDIAL Buttons Installation and Operation Model EXT 401 P4011 No enhancements P1011 Backplate amp CE20 Line Powered Ringer P4021 Ring Detect Relay P1021 Ring Detect Relay Backplate amp CE20 Line Powered Ringer P4022 Ring Detect Relay amp Headset P4023 Headset P4036 Ring Detect Relay Headset Backplate amp CE20 Line Powered Ringer P4038 Headset Backplate amp CE20 Line Powered Ringer Volume Control Buttons Replace LINK amp REDIAL P4012 No enhancements P4030 Backplate amp CE20 Line Powered Ringer P4031 Ring Detect Relay P4032 Ring Detect Relay Backplate amp CE20 Line Powered Ringer P4033 Headset P4034 Headset Backplate amp CE20 Line Powered Ringer P4035 Ring Detect Relay amp Headset P4037 Ring Detect Relay Headset Backplate amp CE20 Line Powered Ringer Options 20C Twenty foot handset cord 22AC 22 armored cord HS Headset with thirty foot cord Installing the EXT 401 Declassify the hazardous location before proceeding with installation or electrical wiring e 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 1 2 NPT conduit runs e Ensure mounting can support 16 5lbs 7 5kg plus the weight of any p
6. ethyl glycol monomethyl ether ethyl formate gasoline heptane heptene hexane 2 hexanone 2 butanol secondary butyl alcohol hexenes n butyl acetate sec butyl acetate butylamine butylene chlorobenzene chloroprene cyclohexane cyclohexene cyclopropane 1 1 dichloroethane 1 2 dichloroethylene 1 3 dichloropropene di isobutylene ethane ethanol ethyl acetate ethyl acrylate ethylamine isoamyl acetate isoamyl alcohol isobutyl acrylate isoprene isopropyl acetate isopropylamine isopropyl ether liquefied petroleum gas mesityl oxide methane methanol methyl acetate methyl acrylate methylamine methylcyclohexane methyl ethyl ketone methyl formate methyl isobutyl ketone Page 22 propyl nitrate ethylene oxide proplene oxide methyl formal methyl mercaptan monomethyl hydrazine morpholine nitroethane nitromethane 2 nitropropane propionaldehyde n propyl ether tetrahydrofuran triethylamine unsymetrical dimethyl hydrazine valeraldehyde methyl isocyanate methyl methacrylate 2 methyl 1 propanol 2 methyl 2 propanol naptha nonane nonene octane octene pentane 1 pentanol 2 pentanone 1 pentene petroleum naptha propane 1 propanol 2 propanol n propyl acetate propylene propylene dichloride propylene oxide pyridine styrene toluene tripropylamine turpentine vinyl acetate vinyl chloride vinylidene chloride xylenes Guardian Telecom Inc Installation and Operation Model EXT 401 APPEN
7. lt gt 6 CONNECTED PROTECTED Explosion Proof Telephone Model EXT 401 Installation amp Operation Ph 403 258 3100 Y email info guardiantelecom com V www guardiantelecom com Guardian Telecom Inc Installation and Operation Model EXT 401 Table of Contents Package Contents Cent im LR 2 M o upan 3 P 3 c 5 General Requirements 5 EXT 201 lt aes NC I mene aue 6 OPTIONS rr 6 EX Ts40T ER Ecc ta 6 Wiring For Tip E NAG CE xc m 8 Wiring For Peripheral Signaling 2 9 Wiring of Tip amp Ring with Optional Disconnect Switch 11 Installation of Peripheral Signaling Device with Power Disconnect Switch 12 Ense Replacement ete tte ot 13 Replacement of Telephone Handset 14 Replacement of ISH1125 15 Operating Instructions ean 16 Engineering Specifications ek 17 R
8. 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 Toll free 1 800 363 8010 Ph 403 258 3100 Fax 403 253 4967 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 20 Guardian Telecom Inc Installation and Operation Model EXT 401 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 On Site Correction e 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 e 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 e Connecting a telephone to a standard powe
9. C TYPE 2AG FAST ACTING SER NO CAT NO 401 REFER TO USER GUIDE FOR INSTALLATION MADE IN CANADA PN P000041 REV Q 158194 Figure 13 1 0 and Compliance Replacement Parts Part No Description P007111 Standard Handset Assembly C W 10 foot Curly Cord P007121 Standard Handset Assembly C W 20 foot Curly Cord P005574 Standard Handset Assembly C W 22 Armored Cord P007130 Push to Talk Handset Assembly C W 10 foot Curly Cord P007131 Push to Talk Handset Assembly C W 20 foot Curly Cord P007221 Headset Assembly C W 30 foot Curly Cord P004022 Fuse 2 0 25 Amp 250 Volt Fast Blow Page 18 Guardian Telecom Inc Installation and Operation Model EXT 401 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 assembl
10. DIX A cont CLASS II DIVISION 1 amp 2 GROUP E Atmospheres containing combustible metal dusts regardless of resistivity or other combustible dusts of similarly hazardous characteristics having resistivity of less than 10 ohm centimeter CLASS II DIVISION 1 amp 2 GROUP Atmospheres containing carbon black charcoal coal or coke dusts which have more than eight percent total volatile material carbon black per ASTM D1620 charcoal coal and coke dusts per ASTM D271 or atmospheres containing these dusts sensitized by other materials so that they present an explosion hazard and having resistivity greater than 100 ohm centimeter but equal to or less than 108 ohm centimeter CLASS II DIVISION 1 amp 2 GROUP G Atmospheres containing combustible dusts having resistivity of 100000 ohm centimeter or greater NOTE This appendix is a summary of information contained in the National Electrical Code Please refer to local applicable Electrical Codes for details and latest update APPENDIX B Applications The EXT 401 Explosion Proof Telephone has been approved by Canadian Standards Association CSA and listed by Underwriters Laboratories UL for use in explosive atmospheres Locations that may require explosion proof equipment include chemical plants e defense installations petrochemical plants e munitions storage depots offshore drilling rigs e missile silos land based drilling rigs e liquefied natural gas terminals gas p
11. OLYURETHANE JACKET HANDSET CORD OPTIONAL 6 0 M 20 FT FIELD REPLACEABLE WITH Low TEMPERATURE POLYURETHANE JACKET MICROPHONE DYNAMIC Page 17 Guardian Telecom Inc Installation and Operation Model EXT 401 RECEIVER HEARING AID COMPATIBLE DIAL PAD OVERSIZED ALUMINUM BUTTONS ON 1 125 GRID STANDARD MOUNTING VERTICAL WALL CONNECTION FITTINGS Ve NPT CONDUIT ENTRY Compliances INDUSTRY CANADA 1012 4339 FCC HQHCAN 65560 TE E CSA LR65547 18 UL 13X8 amp E117495 WEATHERPROOF amp WATERTIGHT ENCLOSURE NEMA 4 HAZARDOUS LOCATION APPROVALS CLASS I DIVISION 1 GROUPS B C amp D CLASS 11 DIVISION 1 GROUPS amp G ENVIRONMENTAL SURVIVABILITY MIL STD 810E ONLY MODELS WITH VOLUME CONTROL SEE EXT 401 MODELS www guardiantelecom com G rdian la PHONE 403 258 3100 1 Telecom Inc IN NORTH AMERICA 1 800 363 8010 J TELEPHONE FOR USE IN HAZARDOUS LOCATIONS Exia CLASS GROUPS B C amp D Associated equipment CLASS Il GROUPS E F amp G Appareillage Connexe ENCLOSURE TYPE 4 TEMP CODE T3C RECEPTICAL PROVIDES INTRINSICALLY SAFE OUTPUT USE ONLY MODEL 401 HANDSET WITH THIS TELEPHONE RECEPTICAL FOURNIT LA PRODUCTION S p INTRINSEQUEMENT SURE UTILISEZ SEULEMENT LE MODELE 401 COMBINE AVEC CE TELEPHONE RELAY CONTACTS 10A 250VAC 2500VA 10A 30VDC 300W LISTED AMBIENT TEMPERATURE 40 C TO 60 C FUSE 0 25A 48VD
12. arcation block NOTE To maintain maximum protection broken or worn parts must be replaced immediately Any abnormal conditions should be immediately corrected Periodic inspections are recommended Unless otherwise specified the customer must provide and install explosion proof conduit and fittings approved by the Canadian Standards Association CSA or listed by Underwriters Laboratories UL The customer is also responsible for having the system inspected and approved by the appropriate electrical inspector in accordance with local legal requirements and National Electrical Code Standards EXT 401 telephone sets and associated external bells and control relays are designed to provide security against ignition of the surrounding atmosphere All parts of the apparatus which might produce an electrical spark are completely enclosed All passages to the outside are made such that any spark or flame will be cooled to a temperature below the ignition threshold before reaching the outside atmosphere If the handset or cord is damaged it must be replaced with part 301SC or 301SCPB handset assembly Handsets and cords are not covered under warranty other than to be free of defects at time of installation If the telephone is found to be defective or in need of repair it must be returned to the manufacturer No field repair is possible other than replacement of the handset and fuse Telephones in good condition may be moved from one location to
13. ct 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 Guardian s Model EXT 401 Explosion Proof telephone must NOT be opened by the user doing so voids the warranty and safety approvals The EXT 401 handset and fuse are externally accessible parts which may be safely serviced by the user following procedures described in the manual 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 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
14. eplacement 18 u 20 Qasa aqp phausi 20 Warning EE 20 Service Telephone nnne nnne 20 EGBdBaoR i een UL Lo E Cet e uU ate s 20 Guardian Product Return Fee ER rH andes 21 APPENDIX A Hazardous Location Classification 22 APPENDIX B ADDIIGalORiS torre epe e 23 Table of Figures Figure 1 ot E esie 4 Figure 2 DIMIGNSIONS s u u u Ete ERE Heo boil te a Niat 4 Figure 3 Typical Installation a 7 Figure 4 Lower Junction Box Wiring 8 Figure 5 Upper Junction Box Wiring 9 Figure 6 Typical Installation With Disconnect Switches 10 Figure 7 Optional Telephone Line Disconnect Switch Wiring 11 Figure 8 Power Disconnect Switch 12 Figure 9 Fuse EE eH Ret 13 Figure 10 Handset 14 Figure 11 Headset Replacement 15 Figure 12 Headset Hook Switch
15. eripheral equipment e Ensure that none of the electrical connection circuits are live e Use the template provided to locate and drill holes for mounting screws Use 1 bolts or screws to mount the unit e Secure the unit to the wall e Attach lower conduit nipples to the telephone and ensure a minimum five thread engagement e Mount an approved explosion proof junction box within 45 7 cm 18 of the telephone s lower sealing cavity and bring telephone wires into this box Fittings compatible with 1 2 inch NPT nipples conduit or 1 2 inch explosion proof flexible couplings not exceeding 45 7 mm 18 inches may be fitted directly Page 6 Caution Installation or electrical wiring in a hazardous location could result in serious injury to personnel or damage to property See Figure 3 Typical Installation See Figure 2 Dimensions Tip Use 1 bolts or screws to secure the unit to the wall Guardian Telecom Inc Installation and Operation Model EXT 401 Suggested Mounting Height 3 7 meters 12 feet n im Explosion proof External Ringing Device 4 Way Explosion proof Upper Junction Box 4 From power source as required refer to ringer specifications Sealing fitting Suggested Mounting Height 1 4 meters 4 5ft 401 EXPLOSION PROOF TELEPHONE Explosion proof Union Fitting Tip Ring Ground From CO or PBX Sealing Fitting Explosion proof Lower
16. eters 4 5ft 401 EXPLOSION PROOF TELEPHONE Explosion proof Union Fitting Flex Coupling or Conduit 454 18 Telephone Line Disconnect switch y m Tip Ring Ground 4 From CO or PBX 2 2 Sealing Fittings Explosion proof Lower Junction Box Figure 6 Typical Installation With Disconnect Switches Page 10 Guardian Telecom Inc Installation and Operation Model EXT 401 Wiring of Tip amp Ring with Optional Disconnect Switch NOTE The ExT 401 is factory set for tone DTMF dialing unless pulse dialing was specified Switching in the field is not possible e Mount an approved explosion proof disconnect switch within 45 7 cm 18 of See Figure 7 Optional the lower junction box and install a flexible coupling or conduit with a sealing Telephone Line fitting between the two 1 Men e Ensure the disconnect switch is in the OFF position until the installation is complete and ready for use e Pull the tip ring and ground wires 18ga from the disconnect switch to the lower junction box of telephone Fill the sealing fitting with sealing compound as described in the instructions supplied by the manufacturer Attach the tip and ring wires to the orange and blue wires from the telephone See Figure 4 Lower using twist on wire connectors Attach 10 ring lugs to the end of the three Junction Box Wiring green wires and attach these wires to the junction box ground screw e Inside
17. h 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 cannot 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 19 Guardian Telecom Inc Installation and Operation Model EXT 401 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 negle
18. humidity Magnetic Reed Hook Switch e No moving parts activates when the handset is removed from or placed in the telephone cradle Tone DTMF Pulse Operation e Factory set to operate to tone DTMF exchanges unless pulse specified Intrinsically Safe Handset Operation e The output from the telephone to the handset passes through an intrinsically safe barrier ensuring a high degree of safety Field Replaceable Handset and Headset e The handset cord is attached to the telephone by a connector for ease of replacement The cord is designed for industrial applications and is available in 10 3m 20 6m coiled and 22 armored lengths An optional headset is available Field Replaceable Fuse e A fitting in the bottom of the enclosure provides access to the fuse Hearing Aid Compatibility e The handset is compatible with inductively coupled hearing aid devices Receiver Volume Control e Selected models provide 13 5dB of range Page 3 Guardian Telecom Inc Installation and Operation Model EXT 401 RING DETECT RELAY WIRES ENTRY POINT SOME MODELS ONLY OPTIONAL MAGNETIC REED HOOK SWITCH amp HANDSET HOLDER INSTRINSICALLY SAFE HANDSET PRODUCTION IDENTIFICATION LABEL HANDSET CORD 2 KEYPAD 11522 LINK PBXTRANSFER C DW REDIAL RELEASE WARNING LABEL MOUNTING LUG lt TIP RING amp GROUND WIRES ENTRY POINT CIN FUSE HANDSET CORD CONNECTOR Figure 1 Features 10 1
19. iled cord and a 22 armored cord are available as options These assemblies are designed specifically for use with the EXT 401 telephone If damaged the assembly may be replaced in the field Only 3015 301SCPB push to talk or 22AC 401 armored cord handset assembly be used with the EXT 401 telephone Alternatively an ISH1125 headset assembly may be used in place of a handset e Completely unscrew the upper knurled collar See Figure 10 Pull the old plug straight down Hande Replacement e Inspect the inside of the socket and the threads for dirt or damage clean as necessary e For safe installation the new handset MUST be placed firmly in the cradle PRIOR to engaging the plug in socket e Bring the new plug up to the socket and rotate the plug until the slot in the shell lines up with the key in the socket Insert plug into socket e Screw the upper knurled collar onto the socket Hand tighten only Do Not use a wrench e Call back and forth to another set to check functionality e Hang up firmly between each call e NOTE If the handset is being replaced because of an apparent telephone malfunction and the replacement fails to restore normal operations contact the manufacturer to arrange return of the unit for repair 401 EXPLOSION PROOF TELEPHONE HEADSET HANDSET JACK KNURLED COLLAR 7 HEADSET PLUG Figure 10 Handset Replacement Page 14 Guardian Telecom Inc In
20. kwise to the left to remove Remove fuse item C from the cap and insert replacement fuse WARN ING Replace only with a 0 25 amp 2AG fast blow fuse Failure to do so will void safety approval and warranties and may create an explosion hazard With fuse mounted in the cap re install in the fuse holder with a flat blade screwdriver and rotate 1 4 turn clockwise to the right to lock in position Screw the 1 2 NPT close up plug into housing with a minimum of five full threads of engagement ATTENTION e CSA amp UL standards require five full threads of engagement for the close up plug NOTES e A field replaceable fuse is available on EXT 401 models manufactured after Jan 1 1997 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 should not be connected to 120 volts AC Figure 9 Fuse Replacement Page 13 Model EXT 401 See Figure 7 Optional Telephone Line Disconnect Switch Wiring See Figure 9 Fuse Replacement See Product Specifications Guardian Telecom Inc Installation and Operation Model EXT 401 Replacement of Telephone Handset Assembly Note The standard handset assembly for the EXT 401 telephone has a 3 0 m 10 ft coiled cord A 6 0m 20 ft long co
21. lants e tankers and tanker depots oil amp gas metering facilities e paint and varnish manufacturing plants refineries e grain processing and similar industries fueling stations bulk loading stations breweries and distilleries e fertilizer plants Page 23 180 9001 Guardian Telecom Inc Toll free 1 800 363 8010 Phone 403 258 3100 Fax 403 253 4967 www guardiantelecom com E mail sales guardiantelecom com Click to open message box CONNECTED PROTECTED Guardian Telecom Inc 2015
22. ncoming power hot lead to one of the See Figure 5 Upper wires from the EXT 401 internal ring detect relay Connect the other wire Junction Box Wiring from the EXT 401 relay to one of the wires from the auxiliary signaling device Connect the other wire from the auxiliary signaling device to the neutral power lead Attach wires using a twist on wire connector Secure the ground wire from the power disconnect switch to the junction box ground screw Ensure the disconnect switch is in the OFF position until installation is complete and the unit is ready for use In the power disconnect switch box attach the hot wire neutral wire and ground wires according to wiring diagram for the power disconnect switch box Check the power disconnect switch and upper junction box before closing D q 9 NM On eee To Upper Hot Lead di Hot Lead F P S Junction Box er Ot rom Power source Neutral Lead Neutral Lead Ground a Ground Y Ground Screw Figure 8 Power Disconnect Switch Wiring Page 12 Guardian Telecom Inc Installation and Operation Fuse Replacement Disconnect the telephone from tip and ring power supplied by the PABX or central office before attempting to replace the fuse Remove the 1 2 NPT close up plug item A with a 1 4 Allen key Remove fuse holder cap item B with a flat blade screwdriver Rotate fuse holder cap 1 4 turn countercloc
23. om Inc Installation and Operation Model EXT 401 Operating Instructions EXT 401 TELEPHONE WITH HANDSET OR HEADSET Handset Remove handset from cradle See Figure 1 Features Listen for a dial tone and then dial the appropriate digits for the feature desired Upon completing a call hang up by returning the handset to the cradle Calls are answered by lifting the handset from the cradle To make another call without returning the handset to the cradle press the RLS release button Headset e Remove the headset and place it over the head raise the hook switch arm See Figure 12 to the off hook vertical position 2 Hook Switch i RS ration Listen for a dial tone and then dial the appropriate digits for the feature desired Ensure that the belt hook TALK MUTE switch is in the TALK position This See Figure 11 switch does not affect voice reception or control on hook off hook operation Headset Replacement of the telephone Upon completing a call return hook switch arm to the on hook horizontal position Calls are answered by lifting the hook switch arm To make another call without returning the headset to the hook switch arm press the RLS release button OFF HOOK POSITION HANG HEADSET HERE WHEN NOTIN USE n Cea P Figure 12 Headset Hook Switch Operation Page 16 Guardian Telecom Inc Installation and Operation Model EXT 401
24. r source rather than tip amp 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 Il Return Materials Authorization RMA e 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 e 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 e n addition to the RMA number shipping documents should include name address telephone number of the owner along with contact information for the person responsible for the repair and or the user who identified the malfunction e 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 Factory Authorized Service e Once received each product is carefully inspected and tested If the product is under warranty repairs are completed and the prod
25. rgy 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 particular installation 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 whic
26. stallation and Operation Model EXT 401 Replacement of ISH1125 Headset Note The headset cord is a 9 1 m 30 ft long coiled cable designed specifically for use with the EXT 401 telephone If damaged the assembly may be replaced in the field Only an ISH1125 headset assembly or a 301SC or 301SCPB push to talk handset assembly may be connected to the EXT 401 explosion proof telephone Completely unscrew the upper knurled collar See Figure 11 Pull the old plug straight down PERSE Inspect the inside of the socket and the threads for dirt or damage clean as necessary For safe installation the new headset MUST be placed on the headset arm PRIOR to engaging the plug in socket Bring the new plug up to the socket and rotate the plug until the slot in the shell lines up with the key in the socket Insert plug into socket Screw the upper knurled collar onto the socket Hand tighten only Do not use a wrench Call back and forth to another set to check functionality Hang the headset onto the hook switch arm between each call NOTE If the headset is being replaced because of an apparent telephone malfunction and the replacement fails to restore normal operations contact the manufacturer to arrange return of the unit for repair 401 EXPLOSION PROOF TELEPHONE HEADSET HANDSET JACK ie KNURLED COLLAR HEADSET PLUG TALK MUTE SWITCH Figure 11 Headset Replacement Page 15 Guardian Telec
27. t the upper junction box within 45 7 cm 18 from the top of the See Figure 3 Typical telephone Install conduit and signaling device wires to the upper junction box nstallation of the telephone In the upper junction box connect the incoming power hot lead to one of the See Figure 5 Upper white wires from the EXT 401 internal ring detect relay Connect the other Junction Box Wiring wire from the EXT 401 relay to one of the wires from the auxiliary signal device Connect the other wire from the auxiliary signal device to the neutral power lead Attach wires by the use of twist on wire connectors Secure the ground wire to the junction box ground screw Check wiring and close the junction box To External Signalling Device Hot a Com Junction Box k Ground Hot a Com Ground From Power Source ln to ringer specifications Ground Screw i FE Hot White switched Hot White From 401 Ring Detect Relay Figure 5 Upper Junction Box Wiring Page 9 Guardian Telecom Inc Installation and Operation Model EXT 401 Suggested Mounting Height 3 7 meters 12 feet 7 8 Explosion proof pl External Ringing Device 4 Way Explosion proof Upper Junction Box Flex Coupling or Conduit 454 mm 187 as Power Disconnect Switch From power source as required 4 refer to ringer specifications Sealing fittings Suggested Mounting Height 1 4 m
28. the disconnect switch box attach the tip ring and ground wires See Figure 7 Optional according to wiring diagram for the disconnect switch Do not connect the tip Telephone Line and ring wires at the local exchange until installation is complete e Check wiring of junction box and power disconnect switch box before closing no Normally Open Contacts nc Normally Closed Contacts O O To Lower Ring Ring From PABX or Central Junction Box Tip 9 Office Exchange ne 544 Ground AF Ground t W Ground Screw Figure 7 Optional Telephone Line Disconnect Switch Wiring Page 11 Guardian Telecom Inc Installation and Operation Model EXT 401 Installation of Peripheral Signaling Device with Power Disconnect Switch Mount the auxiliary signaling device in the desired location above the telephone Run conduit and signaling device wires to the upper junction box Mount an approved power disconnect switch within 45 7 cm 18 of the See Figure 8 Power upper junction box and install a flexible coupling or conduit with a sealing 0 77 Switch iring fitting between the two Pull three wires 18ga from disconnect switch to upper junction box Fill the fitting with sealing compound as shown in the manufacturer s instructions In the upper junction box connect the i
29. uct 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 21 Guardian Telecom Inc Installation and Operation Model EXT 401 APPENDIX A Hazardous Location Classification CLASS DIVISION 1 amp 2 GROUP acrolein butadiene manufactured gases containing more than 30 hydrogen by volume formaldehyde gas hydrogen CLASS 1 DIVISION 1 amp 2 GROUP C acetaldehyde allyl alcohol butyl mercaptan n butyraldehyde carbon monoxide crotonaldehyde dicyclopentadiene diethyl ether diethylamine di isopropylamine dimethylamine 1 4 dioxane di n propylamine epichlorohydrin ethylene ethylenimine ethyl mercaptan n ethyl morpholine hydrogen cyanide hydrogen selenide hydrogen sulfide isobutyraldehyde Isopropyl glycidyl ether methylacetylene methylacetylene propadiene methyl ether CLASS DIVISION 1 amp 2 GROUP D acetic acid acetone acetonitrile acrylonitrile allyl chloride ammonia 3 n amyl acetate sec amyl acetate benzene butane 1 butanol butyl alcohol ethyl benzene ethyl chloride ethylenediamine ethylene dichloride
30. y 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 ene
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