Accutone Two-prong Amplifier - Manual (Page 4)

Additional Microphone Amplification (OPTIONAL)
Ask for technical assistance from your local distributor before attempting
to make this adjustment. This additional microphone amplification
increases the microphone volume in large steps, and improper settings may
cause “squealing” feedback noise which can severely damage the device as
well as the user’s hearing.
If you have been properly informed on this adjustments, make a phone call
using the device, and warn the person on the other side of possible
squealing sound. Remove the lid or stopper that is covering the (3)
Optional Microphone Amplification trimmer. Use the Adjustment Tool
(small screwdriver) to slowly turn the trimmer clockwise to increase extra
microphone amplification.
iii. using your ATP550 console amplifier
In some cases, a console telephone may require extra amplification for a
headset to have sufficient microphone volume. When there is such needs,
users can request from their distributor an ATP550 option - Additional
Microphone Amplification.
3
clockwise to increase
!
warning, be careful
not to overturn, extra
mic amplification is very
sensitive. High gain can
severe damage hearing.
iv. specifications & warnings
General Specifications
Telephone Interface RJ-327 Prong Plug
Headset Interface Any Accutone Headset
Electrical Characteristics
Receiver Gain: 21dB adjustable volume
with AGC
Transmitter Gain: 10dB adjustable
Current Consumption: 5V, maximum 30mA
Mechanical Details:
Dimensions*:
90mm(L)x48(W)x26(H)
Weight**: 3.25oz
* Prongs not included. ** Headset not included.
Safety Warning
! Listening with the device at high volume may damage your hearing.
! Adjusting the volume for the microphone or speaker too high may cause squealing
(feedback noise) and can damage your hearing.
! Do not pair the device with any other equipment other than fixed-line console
telephones.
! Device must be hooked up according to the method listed out in this manual, do
not hook your telephone headset directly to the wall jack.
! Place product far away from water, fire, extended exposure of direct sunlight or
magnetic field, and places of excessive dust, moist, rain, shock or electromagnetic
radiation.
! Do not drop this device or subject it to external shock which may cause
malfunction.
! Do not dissemble or attempt to open up the casing under any circumstances,
contact your distributor or retail outlet on repair or replacement.
! Users should not replace any part or component of the ATP550. Seek advice from
your dealers if you have any problems.
! Whenever unplugging your headset from the telephone headset jack on your
ATP550, apply force to the plug part only. Jerking the cord instead of the plug may
cause damage to the product.
! Operating and storage temperature is 10ºC to 40ºC.
! Do not use liquid cleanser or aerosol cleanser as they may damage the device or
the finishing of the device. Use only a dry cloth to clean the external portions.
! Prevent the headset from coming into contact with moisture or liquid, to protect
against damage to it or injury to you.
! Do not remove or alter any serial number print or sticker on any part of the
device, as this will automatically void the product’s warranty.
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