TELETECH TX 916 Operator's Manual

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TX 916

LOOP a LINE

Operator’s Manual

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1. PHYSICAL DESCRIPTION

Hole for carry lead

Short circuit without
white wire

Connect to Exchange
mode

Quiet Line - 600

Ω

Termination mode

Short circuit with white wire

Open circuit mode

Light (LEDx6)

Tone mode

Speaker

Battery
Compartment

Figure 1-1 Oscillator

(a) FRONT VIEW

(b) REAR VIEW

(c) TOP VIEW

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mode

Figure 1-2 Probe

(a) FRONT VIEW

(b) REAR VIEW

(c) SIDE VIEW

Probe Tip

Open circuit mode

Tone mode

Short circuit with
white wire

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TABLE of CONTENTS

1. PHYSICAL DESCRIPTION ...............................................2

2. SAFETY INFORMATION ..................................................5

3. INTRODUCTION................................................................7

3.1. BATTERY REPLACEMENT ....................................7

3.2. TEST LEADS.............................................................7

4. OSCILLATOR OPERATION .............................................8

4.1. OSCILLATOR POWER UP ......................................8

4.2. OSCILLATOR POWER OFF ....................................8

4.3. CABLE SHORT CIRCUIT DETECTION .................8

4.4. OSCILLATOR MODES ............................................9

5. PROBE OPERATION ....................................................... 11

5.1. SIGNAL TRACING ................................................. 11

5.2. MODE SELECTION ................................................ 11

5.3. TONES ..................................................................... 11

5.4. CONNECTED TO EXCHANGE ............................. 12

5.5. AUDIO BATTERY LEVEL INDICATOR .............. 12

6. LINE TESTS ...................................................................... 12

6.1. PAIR IDENTIFICATION ........................................ 12

6.2. CHECK FOR BALANCED PAIR ........................... 13

6.3. FAULT LOCATION ................................................ 13

Two Wire Test ........................................... 13

Three Wire Test ......................................... 14

Pulse Echo Test (PET/TDR) ...................... 14

7. SPECIFICATIONS ............................................................ 15

7.1. OSCILLATOR ......................................................... 15

7.2. PROBE ..................................................................... 15

8. WARRANTY ..................................................................... 16

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2. SAFETY INFORMATION

To avoid injury read “Safety Information” and
“Warnings and Precautions” before using this

instrument

Safe Working Practices
Review the safety information and adhere to the safe working
practices described in this manual and elsewhere.

Protection may be impaired if the instruments are used for purposes
other than described in this manual.

The symbols used on the instrument and in this manual are:

Safety Information Warning,
Refer to Manual

Conforms to European Union
Directives

Do not dispose of in general
domestic waste. Refer to local
authorities for direction.

Warnings and Precautions

To avoid possible electric shock or personal injury, and to avoid
possible damage to the instrument or to the equipment under test,
adhere to the following practices:

This equipment is to be used by trained technicians only. Use
caution when using this equipment. Voltages in excess of 30Vac,
42Vpeak or 60Vdc may be present on lines being tested. These
voltages pose a potential shock hazard.

Before using the equipment inspect the case. Do not use the
equipment if it is damaged. Look for cracks in the case or missing
parts. Pay particular attention to the insulation around the
connectors.

Inspect the test leads for damaged insulation or exposed metal.
Check the test leads for continuity. Replace damaged test leads
before using the equipment.

Do not use the equipment if it operates abnormally. Protection
may be impaired. When in doubt have the equipment serviced.

Do not apply more than the rated voltages to the equipment.

Use the correct connections and functions for your measurements.