BOGEN TPU15A Telephone Paging Amplifier User Manual
- June 6, 2024
- BOGEN
Table of Contents
Telephone Paging Amplifier
Model TPU15A
Installation and Use Manual
NOTICE: Every effort was made to ensure that the information in this
guide was complete and accurate at the time of printing. However, information
is subject to change.
WARNING: To reduce the risk of Fire or Electric Shock, Do Not Expose this
apparatus to rain or moisture.
Apparatus shall not be exposed to dripping or splashing and no objects filled
with liquids, such as vases shall be placed on the apparatus.
WARNING: Only connect the unit to the AC mains outlet providing the
protective earthing connection.
NOTE: Mains plug is used as a disconnect device from the mains and shall
remain readily accessible and operable.
CAUTION: These servicing instructions are for use by qualified service
personnel only. To reduce the risk of electric shock, do not perform any
servicing other than that contained in the operating instructions unless you
are qualified to do so.
CAUTION: DO NOT INSTALL OR PLACE THIS UNIT IN A BOOKCASE, BUILT-IN
CABINET, OR IN ANOTHER CONFINED SPACE. ENSURE THE UNIT IS WELL VENTILATED. TO
PREVENT THE RISK OF SHOCK OR FIRE HAZARD DUE TO OVERHEATING, ENSURE THAT
CURTAINS AND ANY OTHER MATERIALS DO NOT OBSTRUCT THE VENTILATION VENTS.
Always follow these basic safety precautions when installing and using the
unit:
IMPORTANT SAFETY INSTRUCTIONS
- Read these instructions.
- Keep these instructions.
- Heed all warnings.
- Follow all instructions.
- Do not use this apparatus near water.
- Clean unit with dry cloth.
- Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.
- Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.
- Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one wider than the other. A grounding-type plug has two blades and a third grounding prong. The wide blade, or the third prong, are provided for your safety. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.
- Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles, and the point where they exit from the apparatus.
- Only use attachments/accessories specified by the manufacturer.
- Unplug this apparatus during lightning storms or when not used for long periods of time.
- Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.
CAUTION
RISK OF ELECTRIC SHOCK DO NOT OPEN
CAUTION: TO PREVENT THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE ANY FRONT/BACK
COVERS OR PANELS. NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO
QUALIFIED PERSONNEL.
The lightning flash with the arrowhead symbol, within an equilateral triangle,
is intended to alert the user to the presence of uninsulated “dangerous
voltage” within the product’s enclosure that may be of sufficient magnitude to
constitute a risk of electric shock to persons.
The exclamation point within an equilateral triangle is intended to alert the
user to the presence of important operating and maintenance (servicing)
instructions.
Introduction
The Bogen Model TPU15A is a 15-watt wall-mounted amplifier, specifically
designed for telephone paging applications. This compact unit includes voice-
activated muting of music when paging. The page channel features Automatic
Level Control (ALC) as channel input varies, which is particularly
advantageous where persons of varying voice levels and paging techniques have
access to the system. A night ringer (tone generator) is provided; a steady
ringing tone, indicating incoming calls, can be transmitted through the public
address system during other than regular business hours. This alerts security
personnel to answer the call.
Input terminals are furnished for a 600-ohm balanced telephone line, a
background music source, and normally-open dry contacts for the night ringer.
Output terminals offer a choice of 25V, 70V, and 8 ohms for the connection of
various types of loudspeakers.
Model TPU15A features screwdriver-adjustable controls for page, music, night
ringer levels, and amplifier tone. Protective devices include an LED overload
indicator and a low-cut switch for use with horn loudspeakers.
Installation
CAUTION: The following installation instructions are for use by qualified
personnel only. To avoid an electric shock hazard, do not perform any
functions requiring the removal of the cover of the amplifier unless you are
qualified to do so. To prevent fire or
shock hazard, do not expose this unit to rain or excessive moisture.
Unpacking
Your unit was carefully checked before leaving the factory; inspect the
shipping container and unit closely for improper handling. If the unit has
been damaged, make an immediate claim to the distributor from whom it was
purchased. If the unit was shipped directly to you, save all the shipping
material and notify the carrier immediately and place your claim.
The AC line cord has a three-prong plug which should be plugged into a three-
wire, grounded 120V ~, 60 Hz outlet. It is important to ground the unit.
Mounting
Model TPU15A is designed for surface wall-mounting. When mounting the unit
consider the proximity to heat sources and allow adequate airflow for chassis
heat dissipation, and allow for access to controls and terminal wiring. Where
possible, secure to wall studs or on a suitable back brace. Use self-fastening
or molly-type hardware on plasterboard and other thin materials.
Front Panel
1. Music
An unbalanced, high-impedance auxiliary input is provided. Make connections to
terminals marked MUSIC and GND.
2. Paging
Balanced transformer-isolated input for a telephone line is provided. One
600ohm telephone line may be connected at the terminals marked TIP and RING.
If two-conductor shielded wire is used, connect the shield to the GND
terminal.
3. Night Ringer
A ringing tone can be transmitted through the public address system by
shorting the NIGHT RINGER and GND terminals on the TPU15A amplifier through a
pair of normally open dry contacts (which are customer-supplied). A steady
ringing tone will be heard as long as the dry contacts are closed.
4. Power
Once the connection has been made to a 120V ~, 60 Hz power source, the TPU15A
will remain in a power standby condition. (Also see Circuit Breaker
information.)
5. Speakers
The unit provides 8-ohm, 25V, and 70V transformer-coupled outputs, balanced or
unbalanced. Connect the system speaker to the output terminals, with one
leading to the COM terminal and the other to the terminal which corresponds to
the impedance of the speaker system.
6. Paging
The PAGE VOL screwdriver-adjustable control is used to adjust the volume of
the page input. Rotate the control clockwise to increase volume and counter-
clockwise to decrease it. Set the control to a minimum if the input is not
used.
7. Night Ringer Control
The NIGHT RINGER VOL is screwdriver-adjustable through the top of the unit.
Rotate the control clockwise to increase volume and counter-clockwise to
decrease it.
8. Music
The MUSIC VOL screwdriver-adjustable control is used to adjust the volume of
the background music input. Rotate the control clockwise to increase volume
and counter-clockwise to decrease it. Set the control to a minimum if the
input is not used.
9. Tone Control
The TONE screwdriver-adjustable control is used to adjust the tonal
characteristic of the amplifier output. Rotate the control fully clockwise to
provide a nominal, flat high-frequency response and counter-clockwise to
attenuate the high-frequency response.
10. Peak Level
A front-panel LED will illuminate when the amplifier is driven into clipping.
Adjust the output level of the PAGE, MUSIC, and/or NIGHT RINGER if the LED
remains on.
11. Lo-Cut Switch
The LO-CUT filter is used to decrease low-frequency response when horn-type
paging speakers are used. Move the switch to the right (toward the marking) to
enable this feature.
12. Circuit Breaker
If the Circuit Breaker opens, the amplifier output will cease. Disconnect the
plug from the outlet and momentarily depress the red circuit breaker reset
button. Re-connect power. If the breaker trips again, do not attempt to reset
it. Has the unit been checked by a qualified technician?
Technical Specifications
Rated Output Power: 15W RMS
Distortion: Less than 2%
Frequency Response: Music: ±2 dB, 70 Hz to 12 kHz
Paging: shaped for maximum intelligibility
Input Sensitivity: Music: 70 mV
Paging: -20 dBm
Input Impedance: Music: Hi-Z unbalanced; 25k ohms
Paging: 600 ohms balanced, transformer-isolated
Outputs: 8 ohms, 25V, and 70V balanced, transformer-coupled
Signal-to-Noise: 70 dB
Controls and Indicators: Screwdriver-adjustable – PAGE VOL, MUSIC VOL,
NIGHT RINGER VOL, and TONE; Lo-Cut switch; PEAK LEVEL LED; CIRCUIT BREAKER
Tone Control: -3 dB @ 2.5 kHz; 6 dB per octave
Low Cut: -3 dB @ 350 Hz; 6 dB per octave
ALC (Page Channel): +1/-3 dB output level change with 15 dB input level,
change (ref. -20 dBm rated input sensitivity)
Power Consumption (120V ~, 60 Hz): 0.5A
Thermal Emissions (Full Power): 95.6 BTU/hr.
Dimensions: 11″ W x 2-3/4″ H x 2-3/8″ D
Product Weight: 4 lb. (1.8 kg)
Limited Warranty; Exclusion of Certain Damages
The Bogen TPU15A Telephone Amplifier is warranted to be free from defects in
material or workmanship for two (2) years from the date of sale to the
original purchaser. Any part of the product covered by this warranty that,
with normal installation and use, becomes defective will be repaired or
replaced by Bogen, at our option, provided the product is shipped insured and
prepaid to: Bogen Factory Service Department, 50 Spring Street, Ramsey, NJ
07446, USA. The product will be returned to you freight prepaid. This warranty
does not extend to any of our products that have been subjected to abuse,
misuse, improper storage, neglect, accident, improper installation or have
been modified or repaired or altered in any manner whatsoever, or where the
serial number or date code has been removed or defaced.
THE FOREGOING LIMITED WARRANTY IS BOGEN’S SOLE AND EXCLUSIVE WARRANTY AND THE
PURCHASER’S SOLE AND EXCLUSIVE REMEDY. BOGEN MAKES NO OTHER WARRANTIES OF ANY
KIND, EITHER EXPRESS OR IMPLIED, AND ALL IMPLIED WARRANTIES OF MERCHANTABILITY
OR FITNESS FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED AND EXCLUDED TO THE
MAXIMUM EXTENT ALLOWABLE BY LAW. Bogen’s liability arising out of the
manufacture, sale or supplying of products or their use or disposition,
whether based upon warranty, contract, tort, or otherwise, shall be limited to
the price of the product. IN NO EVENT SHALL BOGEN BE LIABLE FOR SPECIAL,
INCIDENTAL, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, LOSS OF
PROFITS, LOSS OF DATA, OR LOSS OF USE DAMAGES) ARISING OUT OF THE MANUFACTURE,
SALE, OR SUPPLYING OF PRODUCTS, EVEN IF BOGEN HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES OR LOSSES. Some states do not allow the exclusion
or limitation of incidental or consequential damages, so the above limitation
or exclusion may not apply to you. This warranty gives you specific legal
rights, and you may also have other rights which vary from State to State.
7/22/2008
© 2009 Bogen Communications, Inc.
All rights reserved.
Specifications are subject to change without notice.
54-5876-02C 1101
References
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