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TPU250
Telephone Paging Amplifier

Installation and Use Manual

© 2000 Bogen Communications, Inc.
All rights reserved. 54-5900-0

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Summary of Contents for TPU250

Page 1: ...TPU250 Telephone Paging Amplifier Installation and Use Manual 2000 Bogen Communications Inc All rights reserved 54 5900 01r1 0001 ...

Page 2: ...plug This is a safety feature DO NOT defeat the safety purpose of the grounding type plug DO NOT staple or otherwise attach the AC power supply cord to building surfaces 7 DO NOT use the product near water or in a wet or damp place such as a wet basement 8 DO NOT use extension cords The product must be installed within 6 feet of a grounded outlet receptacle 9 DO NOT install telephone wiring during...

Page 3: ...6 Input Wiring 6 Tel Input 6 Music Input 7 Microphone Input 7 Night Ringer Connections 8 Bridging Inputs 8 Input Cover Replacement 8 Output Wiring 9 Speaker Connection 9 Additional Power Amplifier 10 Line Matching Transformer WMT1A Connector 10 Output Cover Replacement 10 OPERATION 11 Indicators 11 Controls 11 12 Page 3 of 12 ...

Page 4: ...is also provided Aphex improves the clarity of the output signal by replacing the higher frequency harmonics that are normally lost through the telephone system This amplifier includes a built in night ringer that can be triggered by either a standard telephone analog ring signal or an external contact closure The night ringer mutes the background music but not pages Package Contents Telephone Pag...

Page 5: ...r and place it over the 2 screws using the top keyhole slots in the flanges at the sides of the amplifier Allow the amplifier to rest on the 2 screws and then proceed to insert the bottom 2 screws into the lower keyhole slots With all the screws in place tighten the screws to secure the amplifier NOTE Backboard must be a minimum of 3 8 thick plywood and securely mounted to the wall Rack Mounting T...

Page 6: ...UTPUT EXT VOX ENABLE PHONE SYSTEM 24 48 24 48 COM N O PR PT M M R T Figure 4 Wiring for TEL Input Page 6 of 12 Wiring Connections IMPORTANT Before making any connections or wiring changes to the amplifier or any equipment connected to the amplifier make sure that the amplifier is NOT plugged into an AC outlet NOTE The amplifier does not have a power switch so it must be unplugged in order to turn ...

Page 7: ...ffective in breaking ground loops that cause hum Microphone Input A high gain low impedance microphone input is provided in this amplifier It is designed to work with microphones like Bogen s MBS1000 microphone Connect the microphone s black wire to the amplifier s negative terminal under the MIC BAL connections Connect the microphone s Red wire to the positive terminal Connect the shield wire fro...

Page 8: ...mplifier To activate the night ringer using standard telephone analog ring connect the analog station s tip lead to the TEL RING T terminal and connect the ring lead to the R terminal If using an external contact closure connect the closure pair across the CONTACT RING terminals not polarized The night ringer follows the cadence of the activating signal Bridging Inputs Bridging permits two amplifi...

Page 9: ... speaker connections are made between the 70V and COM terminals on the output terminal strip see Figure 7 Use a 22 AWG shielded twisted pair cable Connect the shield of the cable to the GND terminal of the output terminal strip The COM and GND terminals of the output terminal strip are connected using a shorting clip The shorting clip enables the amplifier output to act as an unbalanced output one...

Page 10: ...eplacement When all output connections are made remove the appropriate knockout on the input cover Replace the cover and tighten the screws while dressing the wires through the knockout hole WMT A CLASS 2 WIRING ACCEPTABLE Figure 9 WMT1A Connection to RCA Jack on Amplifier Amplifier WMT1A RCA Jack Additional Power Amplifier An external power amplifier can be used with the TPU250 amplifier You must...

Page 11: ... acceptable level without overdriving the system When adjusting this level the PEAK LEVEL indicator should be observed to ensure that the amplifier signal is not distorted MUSIC MUTE This control adjusts the level of the background music heard during a paging announcement The background music mute level should be set to the customer s satisfaction but the page announcement must always be easily he...

Page 12: ... and talking at a low level the sound should not be choppy nor missing parts of words If it is choppy or if intelligibility is poor rotate the control counterclockwise to the point where the sound is clear and crisp but not to the maximum counterclockwise position 2 If the background music shuts down when no page is in progress rotate the control clockwise until the music is restored ALC The ALC c...

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