IMPORTANT SAFETY
INSTRUCTIONS
When using your telephone equipment, basic safety precautions
should always be followed to reduce the risk of fire, electric shock, and
injuries to persons.
1.This product can get its power from the telephone line. Please note
that a spark can occur if the cord is damaged.
2.Do not allow anything to rest on the telephone cord. Do not locate
this product where persons walking on it could damage the cord.
3.Unplug this product before cleaning. Do not use aerosol or liquid
cleaners. Use a damp cloth for cleaning.
4.Do not locate or use this product in wet environments.
5.Do not install this product during a lightning storm. Do not damage
or take apart this product.
6.Use all normal precautions that would apply to telephones or other
electrical appliances.
SAVE THESE INSTRUCTIONS
WELCOME
to the M12 Universal Headset Amplifier from Plantronics
®
The M12 Universal Headset Amplifier connects your single or multi-line
telephone to a Plantronics headset. The M12 Amplifier provides precise
levels of listening and talking comfort, superior protection, and excellent
audio performance.
Note: The M12 Amplifier is not designed to work on telephones that
have the dial pad in the handset or on cordless telephones.
This side of the user guide provides the following steps to quickly set up
and use your amplifier:
1. Identify the components
2. Install the batteries
3. Attach to telephone and headset
4. Check the default settings
5. Set telephone/amplifier compatibility slide switch
6. Make a test call
The other side has more details:
■
Examine other features
■
Troubleshooting
■
Technical Support Center Information
■
FCC Information
■
Parts and Accessories
■
Warranty and Service
2
1
Install the
Batteries
5
Set Telephone/
Amplifier
Compatibility
Slide Switch
6
Make a
Test Call
3
Attach
Telephone
Headset
4
Check the
Default
Settings
M12
Q
UICK START GUIDE
1
Battery Door
2
Telephone/Amplifier
Compatibility Slide
Switch
3
Compatibility Slide
Switch Cover
4
Speak Volume Control
3.1 Unplug your telephone’s handset
cord from the telephone base.
3.2 Plug your telephone’s handset
cord into the M12 Amplifier handset
jack .
3.3 Plug one end of the short cord
into the telephone jack and the
other end into the telephone handset
jack on the telephone base.
3.4 Connect the telephone plug end
of the the long cord into the front
of the M12 Amplifier and attach the
Quick Disconnect (QD) module end to
any Plantronics H-Series professional
headset.
The QD allows you to disconnect the
headset from the amplifier when you
are not using the telephone, or need to move away from your
telephone without removing your headset.
Always start with these settings to use
your headset.
4.1 Headset /handset selector button
is depressed (colored indicator showing).
4.2 Mute button is released (colored
indicator not showing).
4.3 Listen volume control is set to 4.
4.4 The speak volume control has been
pre-set. You can adjust it in Step 6.5.
4.5 Compatibility slide switch in
position 5.
6.1 Ensure you have a dial tone by having
the telephone handset set off hook and
resting on the desk.
6.2 Use your telephone keypad to call a
friend or colleague.
6.3 Adjust the listen volume using the listen
volume control . (1 is the quietest and 9 is
the loudest)
6.4 If your friend cannot hear you, or you
hear a buzz or hum, try changing the
compatibility slide switch (Step 5.4).
6.5 If necessary, adjust the speak volume
control by using the plastic screwdriver to
turn the speak volume control until the
person on the other end can hear your voice
at an appropriate level.
6.6 Snap in the compatibility slide
switch cover by positioning the two
alignment guides into their slots and then
pushing in and down until it snaps shut.
The raised bumps on the access door will
allow you to push in and slide it open at
another time.
6.7 After completing the call, return the
handset to its cradle.
6.8 To receive a call, remove the handset from its
cradle, depress the headset button and begin
talking through your headset.
5.1 Put on headset and have amplifier
in the default settings (Step 4).
5.2 Lift the telephone’s handset off the
cradle and place it on your desk.
5.3 If you hear a clear dial tone, you
can proceed to Step 6.
5.4 If you don’t hear a dial tone, adjust
the compatibility slide switch
following this process:
1 Slide out the flat, plastic
screwdriver from the bottom of
the amplifier.
2 Use the screwdriver to slide the
compatibility slide switch until
you hear a clear dial tone.
Experimenting with various switch
settings will not harm the amplifier or
your telephone.
3.1
3.2
3.4
5.41
5.42
5.1
6.1
5.2
2.1
2.2
2.3
Identify the
Components
TOP VIEW
5
Listen Volume
Control
6
Headset/
Handset
Selector Button
7
Mute Button
BACK VIEW
13
AC Power Supply
(Optional)
14
Amplifier to Quick
Disconnect (QD) Coil
Cable (Long Cord)
(included)
15
Amplifier to
Telephone Coil Cable
(Short Cord)
(included)
16
Two AA Batteries
(included)
6.2
8
Headset
Jack
10
Screwdriver
10
Telephone Jack
11
Handset Jack
12
AC Power
Supply Jack
11
15
14
14
6
2
7
5
3
The M12 Amplifier requires
power to work with most
phones.
2.1 Slide both batteries
into the side of the M12
Amplifier as shown in the
illustration.
An outline of the battery ‘+’
and ‘–’ orientation is also
shown on the panel that
separates the two batteries
(top positive, bottom negative).
2.2 Use the battery door to push down on
both batteries.
2.3 Then slide the door into a locked position.
(The door does not snap in.)
2.4 When the batteries are low, you will hear
three “beeps“ through the headset or you
will notice that the sound quality is not good.
2.5 An optional AC power supply can be
purchased and plugged into the AC power
supply jack. (See Parts and Accessories.)
6.6
4
4.2
4.1
4.3
4.5
4.4
4
2
1
5
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