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Summary of Contents for Guardian EXT-401
- Page 1 Explosion Proof Telephone Model EXT-401 Installation & Operation P002640 Rev. G 150109 1/9/2015 9:57 AM Ph: 403.258.3100 \ email:info@guardiantelecom.com \ www.guardiantelecom.com...
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Page 2: Table Of Contents
Warnings ......................5 General Requirements ..................5 EXT 401 Models ....................6 Options ......................6 Installing the EXT-401 ..................6 Wiring For Tip & Ring ..................8 Wiring For Peripheral Signaling Device ............9 Wiring of Tip & Ring with Optional Disconnect Switch ........11 Installation of Peripheral Signaling Device with Power Disconnect Switch ..12 Fuse Replacement .................. -
Page 3: Overview
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 I Division 1, (see Figure 13 - I.D. and Compliance). Only standard wiring and fittings are required to connect the telephone to the system;... -
Page 4: Figure 1 - Features
Guardian Telecom Inc. Installation and Operation Model EXT-401 Figure 1 - Features Figure 2 - Dimensions Page 4... -
Page 5: Warnings
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. •... -
Page 6: Ext 401 Models
Ring Detect Relay, Headset, Backplate & 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 any Caution: Installation or electrical wiring in a installation or electrical wiring. -
Page 7: Figure 3 - Typical Installation
Guardian Telecom Inc. Installation and Operation Model EXT-401 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... -
Page 8: Wiring For Tip & Ring
Wiring For Tip & 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... -
Page 9: Wiring For Peripheral Signaling Device
Junction Box Wiring white wires from the EXT-401 internal ring detect relay. Connect the other 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. -
Page 10: Figure 6 - Typical Installation With Disconnect Switches
Guardian Telecom Inc. Installation and Operation Model EXT-401 maximum Figure 6 - Typical Installation With Disconnect Switches Page 10... -
Page 11: Wiring Of Tip & Ring With Optional Disconnect Switch
Installation and Operation Model EXT-401 Wiring of Tip & 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. • Mount an approved explosion proof disconnect switch within 45.7 cm (18") of... -
Page 12: Installation Of Peripheral Signaling Device With Power Disconnect Switch
Junction Box Wiring wires from the EXT-401 internal ring detect relay. Connect the other wire 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. -
Page 13: Fuse Replacement
CSA & UL standards require five full threads of engagement for the close-up plug. NOTES • 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. -
Page 14: Replacement Of Telephone Handset Assembly
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 coiled cord and a 22" armored cord are available as options. These assemblies are designed specifically for use with the EXT-401 telephone. -
Page 15: 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. -
Page 16: Operating Instructions
Guardian Telecom Inc. Installation and Operation Model EXT-401 Operating Instructions EXT-401 TELEPHONE WITH HANDSET OR HEADSET Handset • See: Remove handset from cradle. Figure 1 - Features • Listen for a dial tone and then dial the appropriate digits for the feature desired. -
Page 17: Engineering Specifications
Guardian Telecom Inc. Installation and Operation Model EXT-401 Product Specifications Electrical Performance 300 – 3400 H UDIBLE ANGE REQUENCY ESPONSE DTMF 40/60 P , 10 PPS IALING ETHOD ULSE (TOLR) -38 +/- 4 dB RANSMIT BJECTIVE OUDNESS ATING (ROLR) 52 +/- 4 dB... -
Page 18: Replacement Parts
Guardian Telecom Inc. Installation and Operation Model EXT-401 ECEIVER EARING OMPATIBLE 1.125” G VERSIZED LUMINUM UTTONS ON TANDARD OUNTING ERTICAL ½” NPT C ONNECTION ITTINGS ONDUIT NTRY Compliances 1012 4339 A NDUSTRY ANADA FCC HQHCAN-65560-TE-E LR65547-18 13X8, & E117495 &... -
Page 19: Government Certification
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. -
Page 20: Warranty
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. -
Page 21: Guardian Product Return
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. -
Page 22: Appendix A - Hazardous Location Classification
Guardian Telecom Inc. Installation and Operation Model EXT-401 APPENDIX A - Hazardous Location Classification CLASS I, DIVISION 1 & 2, GROUP B acrolein formaldehyde(gas) propyl nitrate butadiene hydrogen ethylene oxide manufactured gases containing more than 30% hydrogen(by volume) proplene oxide CLASS I, DIVISION 1 &... -
Page 23: Appendix B - Applications
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: •... - Page 24 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...
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