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Plantronics S12 Quick Setup Guide

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QUICK START USER GUIDE
T
ELEPHONE
H
EADSET 
S
YSTEM
S12
The S12 Telephone Headset System is designed to add a 
headset to an existing telephone.
The S12 System provides precise levels of listening and talking
comfort and crystal clear voice quality.  
The S12 System is not designed to work on telephones that
have the dial pad in the handset or on cordless telephones.
This user guide provides the following steps to quickly set up
and use your headset system.
1.
Identify the Components
2.
Attach to Telephone
3.
Set Amplifier Compatibility Switch
4.
Make a Test Call
The other side has more details:
■
Examine other features
■
Troubleshooting
■
Technical Support Center Information
■
FCC Information
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Parts and Accessories
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Warranty and Service
I
MPORTANT
S
AFETY
I
NSTRUCTIONS
1. Read and understand all instructions.
2. Follow all warnings and instructions marked on the product. 
3. Unplug this product from the wall outlet before cleaning. Do
not use liquid cleaners or aerosol cleaners. Use a damp cloth
for cleaning.
4. Do not locate this product near water, for example, near 
a bathtub, sink, or laundry tub, in a wet basement or near a
swimming pool.
5. This product should never be placed near or over a radiator or
heat register. It should not be placed in a built-in installation
unless proper ventilation is provided.
6. This product should be operated only from the type of power
source indicated on the marking label. If you are not sure of
the type of power supply to your home, consult your dealer or
local power company.
7. Do not allow anything to rest on the power cord. Do not locate
this product where persons walking on it will damage the cord.
8. Do not overload outlets and extension cords as this can result
in risk of fire or electric shock.
9. Never disassemble or push objects of any kind into the product
as this may short out parts which could result in a fire or
electric shock. Never spill liquid of any kind on the product.
10. Use caution when installing or modifying telephone lines.
11. This product requires an approved power supply such as the
one supplied by a Listed Class 2 Direct Plug-In Power Unit
rated 9VDC 350mA. Plantronics Part No. 45671-01, rated at
an input voltage of 120 VAC, 60Hz and 6 W.
12. This product requires AC power in order to operate. In order 
to have phone service during a power outage, have another
telephone available that is powered only by the telephone line.
13. Keep all product cords and cables away from operating
machinery.
14. Avoid using a telephone (other than a cordless type) during an
electrical storm. There may be a remote risk of electric shock
from lightning. 
15. Do not use the telephone to report a gas leak in the vicinity of
the leak.
SAVE THESE INSTRUCTIONS
W
ELCOME
21
2.1
 Unplug your telephone 
handset cord from the 
telephone base.
2.2
 Plug your telephone 
handset cord into the S12 
amplifier handset jack.
2.3
 Connect the cord     
between the telephone base 
jack on the S12 amplifier and 
your telephone base. 
2.4
 Plug the headset plug into 
the headset jack. 
2.5
 Route the headset cord through the cable management 
channel on the bottom of the amplifier (not shown). 
2.6
 Snap in the headset holder     (not shown).
2.7
 Plug the AC power adapter into the AC power adapter jack 
and plug into a standard 
AC wall output.
4.1
 Verify that the mute button is off.
The mute indicator should not be illuminated
4.2
 Remove the phone handset from the 
cradle and place on your desk. 
1.
 
If you do not hear a dial tone in the 
headset, press the headset button.
The headset indicator is on.  
4.3
 Use your telephone keypad to call a 
friend or colleague. 
4.4 
Adjust the listen volume using the listen 
volume control. 
4.5
 If your friend cannot hear you, or you 
hear a buzz or hum, try changing the 
compatibility slide switch.
4.6
 Adjust how loud you sound to the other 
party by adjusting the speak volume control.   
4.7
 If you sound too loud, move the speak 
volume master switch to its lower setting and 
adjust the speak volume control. 
4.8
 After completing the call, return the 
handset to its cradle. 
3.1
 Put on headset and press the 
headset button. 
The headset indicator      should be 
on (green). 
3.2
 Lift the telephone’s handset off 
the cradle and place it on your 
desk.
3.3
 If you hear a clear dial tone, 
you can proceed to Step 4.
3.4
 If you don’t hear a dial tone, 
adjust the compatibility slide switch      
following this process:
1.
 
Slide the compatibility slide 
switch until you hear a clear dial 
tone. 
There may be multiple settings 
with a dial tone. Select the one 
that sounds most like the handset 
of your phone.  
Experimenting with various switch 
settings will not harm the amplifier 
or your telephone.
2.1
4.5
4.6
4.7
 
1
Adjustable 
Headband
 
2
Headset 
Assembly
 
3
Clothing Clip
 
4
Headset Plug
 
5
Microphone 
Boom
 
6
Ear Cushion 
Assembly
 
7
Earloop
 
8
Pivot Ball Ring
 
9
Firefly
TM
 In-Use 
Indicator
Over-the-Head............converts to............Over-the-Ear
3.2
3.4
4.2
1
3.1
2.3
2.4
2.2
Attach
Amplifier to 
Telephone
2
Set Amplifier 
Compatibility
Slide Switch 
3
Make a 
Test Call
4
Identify the 
Components  
1
S12
 
Q
UICK 
S
TART 
G
UIDE
4.1
4.4
2.7
10
Headset Holder
 
11
Compatibility Slide 
Switch
 
12
S12 Amplifier
 
13
Headset Indicator 
(Green)
 
14
Power Indicator 
(Green)
 
15
Mute Indicator (Red)
 
16
Listen Volume Control
 
17
Mute Button
 
18
Headset/Handset 
Button
 
19
Speak Volume Control
 
20
Speak Volume Master 
(Hi, Low) Switch
 
21
Cord (Phone to 
Amplifier)
 
22
AC Power Adapter
 
23
AC Power 
Adapter Jack
 
24
Headset Jack
 
25
Handset Jack
 
26
Telephone Base Jack 
Back View
Right Side View
Left Side View
Over-the-Head
Over-the-Ear
10
13