Textron Tempo PE945 User manual

INSTRUCTION MANUAL
Read and understand all of the instructions and safety
information in this manual before operating or servicing this
tool.
PE945/PE961
ADSL
Compatible
Telephone
Test Set
with 2-way hands-free
speaker phone
123
456
789
0#
95E0108 Rev. A

2
KEEP THIS MANUAL
Description
The PE945/PE961 test set is intended to troubleshoot communication circuits. Its features
includes:
•Three Operating Modes: Talk (off-hook), Monitor (on-hook and listening), and Off
• ADSL Compatibility
•Two-way Hands-Free Speakerphone
•Tone or Pulse Dialing
•Mute Function
•Automatic Detection and Lockout of Digital Lines (PE961 only)
•Automatic Detection and Lockout of High Voltages
•Storage of up to Ten 21-digit Telephone Numbers
•Up to 31-digit LNR (Last Number Redial)
•Two-Tone Ringer with Adjustable Pitch
•Sealed Electronics
•Waterproof (IP67)
• Buoyant — Floats if Dropped in Water
•Chemical Resistant
•Three Year Warranty
Safety
Safety is essential in the use and maintenance of Tempo tools and equipment. This instruction
manual and any markings on the tool provide information for avoiding hazards and unsafe
practices related to the use of this tool. Observe all of the safety information provided.
Purpose
This manual is intended to familiarize personnel with the safe operation and maintenance
procedures for the Tempo PE945 or PE961 Telephone Test Set.
Keep this manual available to all personnel.
Replacement manuals are available upon request at no charge.

PE945/PE961
3
Important Safety Information
Read and understand all of the instructions and safety information
in this manual before operating or servicing this tool.
Failure to observe this warning can result in severe injury or death.
This symbol is used to call your attention to hazards or unsafe practices which could
result in an injury or property damage. The signal word, defined below, indicates the
severity of the hazard. The message after the signal word provides information for
preventing or avoiding the hazard.
SAFETY ALERT SYMBOL
Immediate hazards which, if not avoided, WILL result in severe injury or death.
Hazards which, if not avoided, COULD result in severe injury or death.
Hazards or unsafe practices which, if not avoided, MAY result in injury or property
damage.

4
Important Safety Information
Replace weak or discharged batteries as soon as either of these conditions is detected.
Use this tool for the manufacturer’s intended purpose only. Use other than that which is
described in this manual can result in injury or property damage.
Do not perform any service or maintenance other than as instructed in this manual.
Failure to observe this precaution can result in injury or property damage.
Inspect the tester and cord for wear or damage. Replace worn, damaged or missing
components with Tempo replacement parts. A damaged component may fail, resulting in
injury or property damage.
Electric shock hazard:
Contact with live circuits can result in severe injury or death.
When in Loudspeaker mode, hold loudspeaker more than 1 foot
(30 cm) from your ear.
Misuse could result in hearing damage.

PE945/PE961
5
Identification
LED Indications:
•Low Battery – middle LED flashes RED.
•Mute Mode – middle LED flashes GREEN.
•Off-Hook Mode – right LED flashes RED.
•Monitor Mode – right LED flashes GREEN.

6
Specifications
Monitor Impedance .......................................................................................... > 400 kΩ@ 1 kHz
Loop Resistance (maximum) ................................................................................................ 5 kΩ
Current Draw ....................................................................................................................<15 mA
DC Resistance
Talk Mode ................................................................................................................... < 300 Ω
Idle ............................................................................................> 10 MΩ(30 µA @ 300 VDC)
Monitor......................................................................................> 10 MΩ(30 µA @ 300 VDC)
Temperature
Operating .................................................................................... –34 to 60 °C (–29 to 140 °F)
Storage ....................................................................................... –50 to 75 °C (–58 to 167 °F)
Battery ........................................................................... 9 V alkaline (NEDA 1604A or IEC 6LR61)
Introduction
The PE945/PE961 Telephone Test Set is an advanced, convenient, and easy-to-use telephone line
troubleshooting device. Equipped with a number of LEDs and alarms, it lets the user know the
operating mode and provides alerts for hazardous situations.
LEDs: Polarity
Low Battery
Talk/Monitor
Tones: Low Pitch
Middle Pitch
High Pitch
The LEDs and tones indicate various conditions and functions. They are shown throughout the
manual in italic type.
The PE945/PE961 produces two types of alarms to alert the user to potentially hazardous
situations.
• Excessive DC voltage is indicated by low pitch tones (Boop... Boop... Boop...).
•AC line voltage is indicated by continuous ringing.
If you hear either of these alarms, which are repeated in bold italic type in this manual, remove
the test set from the line carefully and immediately.

PE945/PE961
7
Operation
The test set must have a good 9V battery installed in order to operate.
See “Changing the Battery or Cordset” in this manual.
1. Connect the red wire to the ring (negative) side of the circuit.
2. Connect the black wire to the tip (positive) side of the circuit.
3. Use the Talk, Monitor and Mute features as described in this section.
Automatic Ground Start
Some lines, especially PABX, require a momentary ground to draw a dial tone.
Connect the test set’s red and black wires to the telephone circuit as usual, and connect the
green wire to ground. Press the TALK button momentarily to check for dial tone.
The ground start is automatic, and the green wire can remain connected without affecting the
call.
TAL
K
Press once to go off-hook (connect). Press MONITOR to go on-hook (disconnect).
▼ Off-Hook Mode
LED: Flashing red (first press)
Tone: Middle Pitch–Middle Pitch
LED: Flashing red (additional presses)
Tone: High Pitch
▼ On-Hook Mode
LED: Flashing green (first press)
Tone: Middle Pitch
LED: None (second press)
Tone: Low Pitch
Automatic Line Checks
The PE945/PE961 is designed to allow testing of POTS service on a live ADSL line without fear of
bringing down the data service. At any attempt to go Off-Hook, the test set automatically
performs the following line checks:
1. Digital Signal Presence (PE961 only): A two-tone alarm (middle pitch – low pitch)
sounds and the test set locks out. To override this alarm, e.g. on an ADSL line, press and
hold the TALK key until the alarm stops (~ 6 seconds). Once overridden, the alarm will
remain cancelled until the unit is either turned off or disconnected from the line.
2. High DC Level (76V-116V): A single-tone alarm (low pitch) sounds, the hook status LED
flashes red and green and the test set locks out. To override this alarm, press and hold the
TALK key until the alarm stops.
3. HIGH DC Level (>116V): A single-tone alarm sounds and the test set locks out. The alarm
may not be overridden.

8
Operation (cont’d)
MONITOR
Press once to monitor the line without disturbing data, signal, or voice transmissions on the line.
Press repeatedly to alternate between Monitor mode and off. If the test set is off-hook (con-
nected), pressing MONITOR will release the line (disconnect).
To conserve battery life, the test set will shut off after 20 minutes of monitoring or 5 minutes
after removal from the line.
▼ Monitor Mode
LED: Flashing green
Tone: Middle Pitch
MUTE
Press and release to stop transmitting over the line, to filter outside noise from the line, or to
eliminate sidetones. Press again to talk. Mute works only when the test set is in Talk mode.
▼ Mute Mode
LED: Flashing red
Tone: High Pitch (Mute ON)
Tone: Low Pitch (Mute OFF)

PE945/PE961
9
Dialing Features
PULSE
Pulse Dialing
Press PULSE, then press TALK.
The dialing mode will automatically return to tone-type dialing when the test set is removed from
the line or when the test set is switched off.
To mix pulse and tone dialing, select PULSE and dial the pulse digits. Then press to select
TONE and dial the tone digits (the will not be dialed).
Note: If the dialing string is started in Tone mode, it is not possible to add Pulse digits.
The Last Number Redial feature (explained later in this section) will dial this number as a mixture
of pulse and tone digits.
To dial this number from memory (explained later in this section):
• setting the dialing mode to Pulse before pressing MEM will dial the number as a mixture of
pulse and tone digits
• setting the dialing mode to Tone before pressing MEM will dial the number as tone digits only
LNR/PAUSE
Last Number Redial / Pause
Immediately after going off-hook, press LNR (last number redial) to redial the dialing string from
the previous call.
In STORE mode press PAUSE to insert a pause in a memory. If within the first 5 entries, this
inserts a 2 second pause in the dialing out string; if not, then it halts the dialing. Press PAUSE to
resume.
STO MEM
Store and Memory
Both the PE945 and PE961 can store up to 10 telephone numbers, one under
each of the digits (0–9).
To store a telephone number:
1. While connected to a line and in the Talk mode, press STO.
2. Press MEM and a location (0-9).
3. Enter the telephone number to be stored.
4. Press STO to store.
In addition to digits, the memory will also store ,, (flash) and (pause).
To recall and dial a stored telephone number:
1. While connected to a line and in the Talk mode, press MEM.
2. Press the appropriate digit (0–9).

10
Other Features
FLASH
Flash
Press FLASH to generate a timed line break.
SPKR
Speaker
The PE945/PE961 allows two different speaker modes: Loudspeaker (receive only) operation
and two-way hands-free operation.
•While off-hook, press SPKR. The test set is now in Loudspeaker mode, with the Mute feature
activated. The Mute LED will be flashing GREEN.
•From this mode, press MUTE to communicate in the two-way hands-free mode.
• When the test set is off, press SPKR to select Monitor mode with loudspeaker. Press again to
select Monitor mode without the loudspeaker.
WARNING! - When in Loudspeaker mode, hold loudspeaker more than 1 foot (30cm) from your
ear. Misuse could result in hearing damage.
VOL
Volume Control
To control the speaker volume, press VOL. The speaker is set to automatically start out at the low
setting. Press VOL to toggle between high and low volume.
POL
Polarity
To determine the polarity, press POL. The LED will indicate polarity as follows:
▼ Red wire connected to ring (negative)
LED: Steady green
▼ Red wire connected to tip (positive)
LED: Steady red
Pressing POL while ringing will cause the LED to alternate between green and red.

PE945/PE961
11
Changing the Battery or Cord Set
Note: Replace the battery in less than one minute to retain the contents of the memory.
1. Disconnect the unit from the circuit.
2. Press MONITOR to go to off mode.
3. Loosen the three screws and the cover.
4. Replace the battery or cord set, as shown. Observe polarity. (Red/Black, +/-)
5. Replace the cover and tighten the screws.
Note: Skipping Steps 1 and 2 may cause the unit to malfunction. If the test set does not restart
after changing the battery, disconnect the battery for two minutes. Then proceed with Step 4.
APositive or Tip (Black)
BNegative or Ring (Red)
CEarth Ground (Green)
Cleaning Instructions
Periodically wipe the case with a damp cloth and mild detergent.
*Green wire shown in diagram is part of the optional PE901 Ground Start Kit.
–
+
Black Wire Red WireGreen Wire
*

12
Using the Test Set for Troubleshooting Circuits
Some general troubleshooting procedures and tips are provided here. These procedures may
require other tools or equipment that are specific to the communications system installation
trade. For a complete selection of VDV (voice-data-video) tools, please refer to a Greenlee full-
line catalog, a Greenlee/Tempo VDV catalog, or visit our website at www.tempo.textron.com.
Ground fault Check for the presence of voltage. If voltage is
present, measure the level. If it is typical line
voltage, contact the local electric utility.
A long run of telephone
cable near a power line Contact the local electric utility.
Power hum Cable imbalance Break the circuit down into sections and check
each section for an imbalance.
Momentary or impulse
noise This may be due to an unbalanced cable, nearby power switch gear, or similar equipment.
Popping, crackling The customer has an older carbon transmitter
type of telephone.
Noise Hiss (white noise);
pulse dialing causes a
momentary change in
the sound of the noise
This is probably due to water in the cables.
Cross connection Direct wiring fault Check for crossed pairs.
Cross-talk Split pair A split pair (a circuit made up of wires from two
separate wire pairs) will be unbalanced and
prone to cross-talk.
Symptom* Possible Cause /
Troubleshooting Step Explanation
This is a potentially hazardous situation!
If the test set produces the excessive DC
voltage alarm (low pitch, low pitch, low pitch)
or the AC line voltage alarm (constant ringing),
remove the test set from the line carefully and
immediately!
Test set alarms Telephone wire
contacting a power
line
*Wet cables may cause most of these symptoms and may cause multiple symptoms to appear
at the same time.

PE945/PE961
13
Troubleshooting (cont’d)
*Wet cables may cause most of these symptoms and may cause multiple symptoms to appear
at the same time.
Intermittent or
variable current Wet cables or a bad connection If accompanied by noise, the cause is usually wet cables.
If no noise is present, the cause is probably a
bad connection in a cross-connect or a bad
connection at the central office.
RFI (radio
frequency
interference)
Split pair An unbalanced pair near a radio transmitter will
be prone to RFI. Adding radio filters can reduce
the interference on the line (the symptom), but
does not solve the imbalance (the problem). To
troubleshoot, break the circuit down into
sections and check each section for split pairs
or a resistive imbalance.
A strong amount of radio interference may
trigger the test set’s excessive DC voltage alarm
and prevent connection when you attempt to go
off-hook. If this happens, listen closely for the
sound of a radio broadcast to determine if this
is the cause of the alarm. If it is necessary to
make a call in this situation, you may safely
override the alarm by holding down the TALK
button for the duration of the override tone.
When the test set goes quiet, release the TALK
button and dial the number.
Note: This override procedure will not work if
the line is unpowered or if a hazardous DC
voltage is present.
Improperly removed bridge taps may also
introduce RFI. Bridge taps, which were once used
for party-line service (multiple users sharing a
cable pair), were often disconnected but left in
place, with a stub section of cable still connected.
This stub section can act as an antenna and
induce radio signals into the circuit.
Symptom* Possible Cause /
Troubleshooting Step Explanation

14
Dead circuit Open circuit or
short circuit Break the circuit down into sections and check each section for continuity.
(2b) When using the
test set in Monitor
mode, or with the
test set discon-
nected, the voltage
will be lower than
normal.
(2b) This indicates a partial short circuit.
(2a) When using the
test set in Monitor
mode, or with the
test set discon-
nected, the voltage
will be normal.
(2a) This indicates a high-resistance fault,
which restricts the amount of current
flowing through the circuit. Possible faults
include a poor connection, wet cables, or a
line extender failure.
Distortion, dialing
difficulty (1) When using the test set in Talk
mode, the voltage
will be lower than
normal.
Symptom* Possible Cause /
Troubleshooting Step Explanation
*Wet cables may cause most of these symptoms and may cause multiple symptoms to appear
at the same time.
Troubleshooting (cont’d)

MANUAL DE INSTRUCCIONES
Lea yentienda todas las instrucciones y la información
sobre seguridad que aparecen en este manual, antes de
manejar esta herramienta o repararla.
PE945/PE961
Microtelefono
de Prueba
Compatible
con ADSL
con altavoz manos
libres bidireccional
123
456
789
0#
95E0108 Rev. A

16
CONSERVE ESTE MANUAL
Descripción
El equipo de prueba PE945/PE961 es para diagnosticar circuitos de comunicación.
Sus características incluyen:
•Tres modos de operación: Conversación (Descolgado), Monitor (Colgado y escuchando), y
Desactivado
•Compatibilidad con ADSL
•Altavoz manos libres bidireccional
•Marcación por tono o pulsación
•Función de silenciamiento
•Detección y bloqueo automático de líneas digitales
•Detección y bloqueo automático de altas tensiones
•Almacenamiento hasta de 10 números telefónicos con 21 dígitos
•Timbre de dos tonos ajustables
•Electrónicos sellados
•Impermeable (IP67)
•Flotante — Flota si cae al agua
• Resistente a los productos químicos
•Garantía de tres años
Seguridad
La seguridad es esencial en el uso y mantenimiento de las herramientas y equipos de Tempo.
Este manual de instrucciones y las marcas en la herramienta proporcionan información para
evitar peligros y prácticas inseguras relacionadas con el uso de esta herramienta. Observe toda
la información de seguridad provista.
Objetivo
Este manual tiene por objeto familiarizar al personal con los procedimientos de funcionamiento y
mantenimiento para el Equipo de prueba Telefónica Tempo PE945/PE961.
Ponga este manual a disposición de todo el personal.
Se dispone de copias de este manual sin cargo si las solicita.

PE945/PE961
17
Información Importante sobre Seguridad
Lea y entienda todas las instrucciones y la información de
seguridad de este manual antes de hacer funcionar esta
herramienta o darle servicio.
No observar esta advertencia podría resultar en lesiones severas o
la muerte.
Este símbolo se usa para concentrar su atención en los peligros o prácticas peligrosas
que pueden ocasionar lesiones y daños a la propiedad. La palabra de señal definida
debajo indica la gravedad del peligro. El mensaje que sigue después de la palabra de
señal suministra información para prevenir o evitar el peligro.
SÍMBOLO DE ALERTA DE
SEGURIDAD
Peligros inmediatos que si no se evitan, RESULTARÁN en lesiones graves o la muerte.
Peligros que si no se evitan, PODRÍAN ocasionar lesiones graves o la muerte.
Peligros o prácticas inseguras que si no se evitan, PUEDEN ocasionar lesiones o daños a
la propiedad.

18
Información de Seguridad Importante
Cambie las pilas gastadas o descargadas apenas detecte cualquiera de esas condiciones.
Utilice esta herramienta únicamente para el fin estipulado por el fabricante. El uso para
cualquier fin distinto al que se menciona en este manual puede ocasionar lesiones y
daños a la propiedad.
No le haga ningún servicio ni mantenimiento distinto al que se menciona en este manual.
No observar esta precaución puede ocasionar lesiones graves o la muerte.
Inspeccione el desgaste o daños en el probador. Cambie los componentes desgastados,
dañados o faltantes con piezas Tempo. Los componentes dañados pueden fallar, lo cual
puede ocasionar lesiones o daños a la propiedad.
Peligro de Descarga Eléctrica:
El contacto con circuitos que tengan corriente puede ocasionar
lesiones graves o la muerte.
Cuando lo tenga en modo de altavoz, sostenga el altavoz a más de
1 pie de distancia (30 cm.) del oído.
El mal uso puede ocasionar la pérdida auditiva.

PE945/PE961
19
Identificación
Indicaciones de los diodos fotoemisores:
•Pila descargada – Destello del diodo fotoemisor ROJO del MEDIO
•Modo Mudo – Destello del diodo fotoemisor VERDE del MEDIO.
•Modo Desenganchado – Destello del diodo fotoemisor ROJO de la DERECHA.
•Modo Monitor – Destello del diodo fotoemisor VERDE de la derecha.

20
Especificaciones
Impedancia del Monitor .................................................................................... > 400 kΩ@ 1 kHz
Resistencia de Bucle (máxima) ............................................................................................. 5 kΩ
Consumo de Corriente ...................................................................................................... < 15 mA
Resistencia de CC
Modo de Conversación ............................................................................................... < 300 Ω
En espera.................................................................................. > 10 MΩ(30 mA @ 300 VCC)
Monitor..................................................................................... > 10 MΩ(30 mA @ 300 VDC)
Temperatura
Funcionamiento .............................................................................. -34 a 60 °C (-29 a 140 °F)
Almacenamiento ............................................................................ -50 to 75 °C (-58 a 167 °F)
Pila ................................................................................. 9 V alkaline (NEDA 1604A o IEC 6LR61)
Prefacio
El Microtelefono de Prueba PE945/PE961 es un dispositivo avanzado para diagnosticar líneas
telefónicas, conveniente y fácil de usar. Viene equipado con un número de diodos fotoemisores y
alarmas, permite que el usuario vea el modo de funcionamiento y emite alertas en situaciones
peligrosas.
Diodos Fotoemisores: Polaridad
Pila descargada
Conversación/Monitor
Tonos: Tono Bajo
Tono Medio
Tono Alto
Los diodos fotoemisores y los tonos indican varias condiciones y funciones. Aparecen en cursiva
a lo largo de este manual.
El PE945/PE961 produce dos tipos de alarmas para alertar al usuario sobre situaciones
potencialmente peligrosas.
• La tensión de CC excesiva se indica con tonos bajos seguidos.
•El voltaje de CC de la línea se indica con un timbre continuo.
Si escucha cualquiera de esas alarmas, las cuales se repiten en cursiva negrita en este manual,
retire el equipo de prueba de la línea cuidadosa e inmediatamente.