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Guardian Telecom Inc. 

 

 

 

 

Installation and Operation 

Model ExP-TBA 

 

Page 12 

 

 

 

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. 

 

 

Summary of Contents for ExP-TBA

Page 1: ...Canada T2E 8W1 Industrial Communications Worldwide Explosion Proof Talk Back Wall Station Model ExP TBA Installation Operation P005615 Rev E 080220 2 21 2008 1 43 PM Ph 403 258 3100 email info guardia...

Page 2: ...ineering Specifications 10 Warranty 11 Disclaimer 11 Warning 11 Service Telephone Number 11 Feedback 11 Guardian Product Return 12 Table of Figures Figure 1 Features 4 Figure 2 Dimensions 4 Figure 3 M...

Page 3: ...er except when the Master Station is activated to transmit If desired a push button can be installed near the Slave speaker which when pressed will cause a ringing signal to be heard over the Master S...

Page 4: ...STER SPEAKER 1 NPT CONNECTOR FOR SPEAKER ENTRANCE VOLUME CONTROL BUTTON PUSH TO TALK SLAVE SPEAKER STATION MICROPHONE ID LABEL CERTIFICATION LABEL WARNING LABEL CAST ALUMINUM ENCLOSURE WITH POWDERCOAT...

Page 5: ...e 4 Typical Installation Page 5 14 67 373mm 7 25 184mm 0 4 10mm 4 PLACES POWER SUPPLY 24VDC 120 240VAC OPTIONAL REMOTE HAND FOOT SWITCH MASTER STATION SPEAKER MASTER STATION E O V M L U R A M E S T O...

Page 6: ...the post announcement tone set the jumper to the TONE position to disable the tone set the jumper to the OFF position Microphone input level Potentiometer This potentiometer is referenced R24 and labe...

Page 7: ...lk Back Mode In Hands Free Talk Back mode the Master Station speaker is normally on and the Slave speaker is functioning as a microphone Faceplate Push To Page switch Without any switches activated an...

Page 8: ...hone The Slave speaker is turned on to broadcast the message sent from the Master Station The Slave Station Switch When the Slave station switch is pressed the Slave speaker is converted into a microp...

Page 9: ...EN T R 54 1 J3 D ETA IL B N eutral G round H ot 2 3 1 J7 D ETAIL C 4 5 2 3 J7 D E TAIL C FR O M LA R G E TR AN S FO R M ER TR C 255 C 12 TE R M IN A LS IN P U T A D JU STM EN T R 24 M IC IN P U T A D...

Page 10: ...T SPST SWITCH AUDIO OUTPUTS MASTER SPEAKER CHANNEL 70V LINE 10 WRMS SLAVE SPEAKER CHANNEL 70V LINE 10 WRMS ENVIRONMENTAL TEMPERATURE 40 TO 60 C 40 TO 140 F HUMIDITY 0 95 RH NON CONDENSING MECHANICAL B...

Page 11: ...equential damages Warning High voltages may be present in this product Ensure that power is removed before installing performing maintenance or repairs Service Telephone Number 1 800 363 8010 North Am...

Page 12: ...ardian 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...

Page 13: ...Guardian Telecom Inc Installation and Operation Model ExP TBA Page 13 Notes Model No Part No Serial No Date of Purchase...

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Page 16: ...N E Calgary Alberta Canada T2E 8W1 Toll free 1 800 363 8010 Ph 403 258 3100 Fax 403 253 4967 www guardiantelecom com E mail sales guardiantelecom com Click to open message box Industrial Communication...

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