AT&T
Customer Instruction Booklet:
Plug Prong &
Modular Amplifier
CIB 3142
PLUG PRONG & MODULAR AMPLIFIER
FCC REGISTRATION INFORMATION
In compliance with FCC Rules and Regulations, Part 68, you are advised that:
1. Before installing your headset, you must notify the owner of the host equipment (i.e.,
leasing company). Provide them with the headset registration number. The registration
number is printed on the headset registration label.
2. If the installation of your headset requires the installation of a headset jack/JackSet® that
connects to the internal wiring of leased telephones or other devices, such connections
can only be made with permission of the owner of the host equipment.
3. In case of trouble, disconnect your headset to determine the trouble source. If the headset
is the source, modifications or repairs can only be made by the headset manufacturer or its
authorized representatives.
WARRANTY
All terms and conditions in your agreement with AT&T apply. For warranty and non-warranty
service of this product, Plantronics, Inc. acts solely as a service agent for AT&T and any claims
are to be solely with Plantronics.
SERVICE INFORMATION
Should you encounter difficulties or be uncertain about proper installation, please follow the
procedures below:
●
Replace the faulty amplifier with a working amplifier. If the problem persists, the problem
is probably not in the amplifier, but in the equipment to which it is connected.
●
lf the replacement clears the problem the trouble is in the amplifier.
Should your amplifier fail to operate properly, and you wish to obtain service under the
Warranty specified in your agreement with AT&T, please contact your AT&T representative.
The AT&T Helpline is 1 800 628-2888. When returning the amplifier for service, it is not
necessary to include the headset.
TRADEMARK NOTICES
JackSet is a registered trademark of Plantronics, Inc.
Merlin Legend™ is a trademark of AT&T.
Partner® is a registered trademark of AT&T.
Spirit™ is a trademark of AT&T.
i
CIB 3142 Plug Prong & Modular Amplifier Guide
This booklet contains information on the installation and usage of the AT&T Modular Amplifier
and the Plug Prong Amplifier.
Refer to the specific headset user’s guide for information on the positioning and
usage of the headset.
AT&T Modular and Plug Prong Amplifiers are to be used only with AT&T KS23822
series headsets.
MODULAR AMPLIFIER
VOLUME CONTROL
HEADSET/HANDSET SWITCH
MUTE
5 POSITION SWITCH
HEADSET PORT
ROTARY TRANSMIT SWITCH
PLUG-PRONG AMPLIFIER
VOLUME COVTROL
MODULAR AMPLIFIER (BACK VIEW)
TELEPHONE JACK ( )
HANDSET JACK ( )
AC JACK ( OPTIONAL)
1
1
2
FIGURE 1
1
FIGURE 2
2
FIGURE 3
INSTALLATION
Connecting the Modular Amplifier to the Telephone
Unplug the handset cord from the telephone base and insert
it into the jack labeled with the handset symbol ( ) on the
back of the Modular Amplifier.
(FIGURE 1)
Insert the cord from the Modular Amplifier jack labeled with
the telephone symbol ( ) into the handset cord jack on
your telephone.
(FIGURE 2)
Adjusting the Modular Amplifier
The Modular Amplifier has been designed to work with AT&T
telephones. The following steps will ensure that the Amplifier
works correctly with your telephone.
Setting the 5-Position Switch
Locate the plastic mini-screwdriver attached to the bottom of
the Modular Amplifier. (FIGURE 3) Slide it out of the bracket.
Move the slide switch (FIGURE 4) to the correct setting for
your telephone, as shown below.
If your telephone
5-Position
handset looks like this:
Switch Setting:
1
2
3
3
For some electronic telephones, such as Partner® or Spirit™,
you must connect an AC/DC converter as follows:
●
●
●
Insert the AC/DC plug into the jack marked
on the back of the amplifier.
Plug the AC/DC converter into a 110v AC outlet.
(Use only UL 20J8 approved Class 2 converter.)
Set the slide switch to position 5.
FIGURE 4
2
4
5
1
FIGURE 5
Depress “ON/OFF” button until the color indicator is visible.
Remove handset. If dial tone is not heard in the headset,
move slide switch to each position in turn. When a clear dial
tone is heard, go to the next step. If no dial tone is heard in
any switch position, move the switch to position 5 and install
the AC/DC converter as described above.
Adjusting the Transmit Level Dial
You may need to adjust the sound transmission level of
your headset (what your caller hears). Before attempting this
adjustment, complete the installation of your headset. If needed,
return to this section to adjust the Transmit Level Dial.
Place a call to a friend and talk while rotating the dial with the
screwdriver. (FIGURE 5) Continue rotating until the optimum
sound tone and level are reached. The sound level should be
the same as when using the handset. You can check it by
putting the handset to your ear and then pushing the "ON/OFF"
button so the indicator is black. Once set, you do not have to
readjust this dial unless you change telephones.
2 Return the plastic mini-screwdriver to the bracket for
future use.
USAGE
Quick Disconnect
Your headset model is equipped with a Quick Disconnect
module. This feature allows you to place a call on hold with-
out removing your headset, thus freeing you to perform a
task away from the phone. Your conversation is quickly
resumed by reconnecting the Quick Disconnect.
1
Before attempting to use your headset, be sure that the two
Quick Disconnect halves are connected.
FIGURE 6
2
To put your call on hold, grasp the Quick Disconnect as
shown and pull straight apart. (FIGURE 6)
3
To resume your conversation, reconnect the two halves of the
Quick Disconnect.
3
1
2
FIGURE 7
3
4
FIGURE 8
FIGURE 9
1
2
FIGURE 10
Placing and Receiving Calls with the Modular Amplifier
For headset use, depress the middle button labeled
"ON/OFF" so that the color indicator is visible.
(FIGURE 7)
To place a call, remove the telephone handset from its cradle.
You should hear a dial tone. Dial normally. To end the call,
hang up the handset.
To receive a call, remove the handset from its cradle. You can
now hear and be heard by the calling party. To end the call,
hang up the handset.
For handset use, depress the "ON/OFF" (middle) button again
so that the color indicator does not appear. Pick up your handset
as you would normally.
Setting the Volume Control
To set the volume control to the hearing level most
comfortable for you, start with the wheel turned to number 1,
the lowest level. To increase the volume, rotate the wheel to
a higher number.
(FIGURE 8 or 9, as appropriate.)
Using the Mute Button on the Modular Amplifier
To mute your voice while still hearing the caller, depress the
MUTE (right) button so that the color indicator is visible.
(FIGURE 10)
To resume speaking to your caller, depress the MUTE (right)
button again so that the color indicator does not appear.
IF YOU HAVE ANY QUESTIONS, PLEASE CONTACT
THE AT&T HELPLINE AT 1-800-628-2888.
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PRINTED IN THE U.S.A.
27302-01(© 4/92)
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