Ultratec TDD Detector Installation Instructions Manual

The Ultratec TDD Detector

Installation Instructions

Ultratec, Inc.

450 Science Drive

Madison, WI 53711

BOOKTD31

NOTICE

All efforts have been made to insure the accuracy of the contents of this manual. However,
Ultratec, Inc., can assume no responsibility for any errors in this manual or their
consequences. This manual is furnished “as is,” without warranty of any kind, express or
implied, respecting its contents, including but not limited to implied warranties of the manual’s
quality, performance, merchantability or fitness for any particular purpose. Neither Ultratec,
Inc., nor its dealers or distributors shall be liable to the purchaser or any other person or entity
with respect to any liability, loss, or damage caused or alleged to be caused directly or
indirectly by this manual. The contents of this manual are subject to change without notice.

Second Printing
February, 1998

© 1990, 1998 Ultratec, Inc.

Contents

1 About TTYs and the TDD Detector

1 About TTYs and the Deaf TTY Network
1 The Ultratec TDD Detector announces incoming TTY calls
2 Control from a Touch-Tone® telephone keypad
2 Manual and automatic reset—two ways to install the TDD

Detector

3 Install the TDD Detector

3 Description of manual and automatic reset installations—

equipment
4 Manual reset installation instructions
5 Automatic reset installation instructions

Off-hook detect installation
Loop-current detect installation

9 Test Your Installation and Train Your Operators

9 Test procedures for manual and automatic reset installations

10 Train your operators

13 TDD Detector Options, Service, and Specifications

13 TDD Detector options available
13 If your TDD Detector needs repair
15 TDD Detector Specifications

Appendix A: Rack Installation

FCC Information

The Ultratec TDD Detector

Installation Instructions

NOTE: In this manual TTY, TDD and text telephone all refer to the same device.

The deaf telecommunications network began in
the early 1960's. Surplus Teletype machines
became available, and a deaf physicist named
Robert Weitbrecht invented a modem that
enabled these machines to communicate over
the telephone lines. These machines coupled
with the Weitbrecht modem became the first
Telecommunications Devices for the Deaf
(TDDs). These Teletype machines used 5-level
Baudot code, and established the foundation for
today's extensive deaf Baudot TTY network.

TTYs today are small electronic typewriter-like
devices that use built-in Weitbrecht-type
modems to communicate in Baudot code. They
are used by people who are deaf or hearing or
speech impaired to access the telephone
network.

Please note: In this manual TTY, TDD and text
telephone all refer to the same device.

1

About TTYs

and the TDD Detector

About TTYs and
the Deaf TTY
Network

The Ultratec TDD Detector connects directly
to the telephone line. It monitors the line,
listening for the sounds of incoming TTY
(Baudot code) signals. Incoming TTY signals
mean that someone is typing to you on a
TTY (text telephone).

When the TDD Detector hears TTY signals
on the phone line, it responds in two ways.
First, a built-in voice "announces" the
incoming TTY call to you by repeating, "TDD
CALL… TDD CALL." Second, the TDD
Detector sends a TTY message for your caller
to read on his or her TTY display. The
standard TTY message says, "911 HERE
PLEASE HOLD."

The Ultratec TDD
Detector
announces
incoming TTY
calls

Although it is connected to your phone line, the
TDD Detector does not affect the normal
operation of your telephone equipment.

NOTE: If your installation requires a TTY
message that differs from the standard message
("911 HERE PLEASE HOLD"), you can order a
custom message for your TDD Detector. See
page 11.

2

Your operators control the TDD Detector by
pressing the "RESET" or "SEND" buttons on the
front panel. These same operations can be
accomplished by easy-to-use commands from
the operator's Touch-Tone® telephone.
Additional Touch-Tone® commands allow your
operators to abort (stop) the send command,
and to test the TDD Detector's internal circuits.

Control from a
Touch-Tone
telephone keypad

There are two ways to install the TDD Detector
in your setting—the manual reset installation
and the automatic reset installation.

The manual reset installation requires no
special wiring, but your operators should be
trained to reset the Detector after it has
received a TTY call. The automatic reset
installation requires that your TDD Detector be
installed so that it can detect the on- and off­hook status of the phone line. It will
automatically reset when the operator hangs up
after a TTY call.

Refer to page 3 for a complete description of the
two installations.

Manual and
automatic reset—
two ways to
install the TDD
Detector

Read the descriptions of the manual and
automatic reset installations below, and

select the installation that is best for your
setting. Then turn to the appropriate page for
complete installation instructions.

The manual reset installation for the TDD
Detector requires no special wiring. However,
with this installation, your operator is
responsible for pressing the "RESET" button at
the end of each TTY call he or she receives.
When the "RESET" button is pressed, the TDD
Detector resumes monitoring the phone line for
TTY signals.

If the operator fails to press the "RESET"
button, the TDD Detector will reset itself after a
standard 10-minute time-out period.

Turn to page 4 for manual reset installation
instructions.

NOTE: The length of the time-out period can be
changed at Ultratec to meet your specifications.

3

Install the TDD Detector

Description of
manual and
automatic reset
installations—
equipment

The manual reset installation

requires no specific

adjustments to your

telephone equipment.

In the automatic reset installation, the TDD
Detector determines the beginning of each new
telephone call by detecting loop current, or by
monitoring the on- or off-hook status of the
phone line. In either case, the TDD Detector
knows when an operator has answered a call,
and automatically monitors the beginning of
that call to listen for TTY signals. When the
operator hangs up, the TDD Detector will wait
until the beginning of the next incoming call to
monitor the phone line. The operator does not
need to press the "RESET" button.

Turn to page 5 for automatic reset installation
instructions.

In the automatic reset

installation the TDD Detector

monitors the

on-hook or off-hook status of

the phone line.

The Ultratec TDD Detector uses two built-in
RJ12C telephone modular jacks to connect
directly to the telephone and the telephone line.
These jacks are located on the back panel of the
TDD Detector, and are labeled "LINE" and
"TELEPHONE."

1. Install the TDD Detector in a place that is
convenient for your operator.

You can place the operator's telephone on top of
the TDD Detector. The operator should be able
to reach the buttons on the front panel easily.

2. Connect the TDD Detector to the phone
line.

Use the modular telephone wire included with
your TDD Detector.

If you have a single phone line…

Plug one end of the modular phone wire into
the jack labeled "LINE" on the back panel of
your TDD Detector. Plug the other end of the
phone wire into the telephone line outlet.

If your setting has either a multi-line
(KTS) telephone system, or a call-director
console…

Connect the TIP and RING for the telephone or
from the call-director console to a telephone
wire with a modular plug that fits a RJ12C
modular jack. Plug the phone wire into the jack
labeled "LINE" on the back panel of your TDD
Detector.

3. Connect the operator's telephone to the
TDD Detector.

Plug the modular phone wire from the
operator's telephone into the "TELEPHONE"
jack on the back panel of the TDD Detector.

4

Manual reset
installation
instructions

5

4. Connect the AC adapter.

Plug the AC adapter wire into the "POWER" jack
on the back panel of your TDD Detector.

Plug the AC adapter into an electrical outlet.

5. Press the "RESET" button to initialize the

TDD Detector.

6. Connect an external speaker (optional).

Plug the speaker wire into the RCA phono jack
labeled "SPEAKER" on the back panel of your
TDD Detector.

7. Go on to page 9 to test your installation.

There are two ways to install your TDD Detector
so that it will automatically reset after each call
you receive—off-hook detect and loop-current
detect installations. Either installation makes it
possible for the TDD Detector to know when the
telephone is on or off the hook.

Automatic reset
installation
instructions

Off-hook detect

installation

1. Install the TDD Detector in a place that is

convenient for your operator.

You can place the operator's telephone on top of
the TDD Detector. The operator should be able
to reach the buttons on the front panel easily.

2. Connect the TDD Detector to the phone

line.

If you have a single phone line…

Plug one end of the modular phone wire into
the jack labeled "LINE" on the back panel of
your TDD Detector. Plug the other end of the
phone wire into the telephone line outlet.

If you have either a multi-line (KTS)
telephone system, or a call-director
console…

Connect the TIP and RING for the telephone or
from the call-director console to a telephone
wire with a modular plug that fits a RJ12C
modular jack. Plug the phone wire into the jack
labeled "LINE" on the back panel of your TDD
Detector.