TELETECH TX 916 Operator'S Manual Download Page 1 | Manualshive

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TX 916

LOOP a LINE

Operator’s Manual

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Summary of Contents for TX 916

Page 1: ...pg 1 TX 916 LOOP a LINE Operator s Manual...

Page 2: ...Short circuit without white wire Connect to Exchange mode Quiet Line 600 Termination mode Short circuit with white wire Open circuit mode Light LEDx6 Tone mode Speaker Battery Compartment Figure 1 1...

Page 3: ...pg 3 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...

Page 4: ...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...

Page 5: ...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 30V...

Page 6: ...ry comes into contact with skin or clothes flush skin with water immediately Before inserting new batteries thoroughly clean the battery compartment with a damp paper towel or follow the battery manuf...

Page 7: ...nstrument loop insulation resistance resistance balance measurements and fault locating can be performed 3 1 BATTERY REPLACEMENT Both devices are powered by a 9 V alkaline battery IEC 6LR61 which can...

Page 8: ...ration and should be replaced Figure 4 1 Light array indicating a FLAT b LOW c FULL battery level After indicating the battery level the OSCILLATOR enters TONE mode The light next to the symbol will f...

Page 9: ...4 5 V DC to the cable pair to which it is connected This voltage is necessary for the OSCILLATOR to be able to detect a short circuit 4 4 OSCILLATOR MODES The OSCILLATOR has six operating modes The s...

Page 10: ...e measured This termination is also used for a Three Wire RFL test refer to section 6 3 2 Three Wire Test Customer Exchange Open Circuit The OSCILLATOR tone generation is disconnected and the line is...

Page 11: ...he case of TONE mode where it will remain powered for 2 minutes and then power down automatically 5 3 TONES There are four selectable OSCILLATOR tones available for use in pair identification they are...

Page 12: ...tive Exchange voltage on the test lead s Red clip 5 5 AUDIO BATTERY LEVEL INDICATOR If the PROBE battery is almost flat the PROBE will emit a long and descending pitch screech whenever a key is presse...

Page 13: ...ir carrying the OSCILLATOR tone signal Confirm the pair by selecting a different mode and checking that the OSCILLATOR s tone stops The PROBE s sensitivity volume can be adjusted by using the TONE key...

Page 14: ...n them or both have fault resistance to ground If only one wire of the pair is faulty the Two Wire Method can be used The Three Wire test is performed as follows Connect the Blue Oscillator leads to a...

Page 15: ...ircuit voltage 500 V dc Line Balance 54 pF black clip red clip 58 pF black clip ground plane 72 pF red clip ground plane Mode 3 Mode4 Short Circuit with or without ground Current consumption approx 0...

Page 16: ...sonable normal usage as determined solely by Teletech Pty Ltd Items returned for repair or replacement shall be shipped with a copy of the dated invoice freight charges prepaid to Teletech Pty Ltd Uni...

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