The Telephone & Exchange Tester ETT 10 is intended for testing the main parameters of

•  subscriber lines,

•  exchanges and PABXs

•  subscriber telephone sets and other terminal equipment such as fax machines and meter pulse counters

LINE mode parameters:

• Measurement of DC and AC voltages
• Observation of DTMF, MP and Tone signals

EXCH mode parameters:

• Measurement of DC and AC voltages
• Off-Hook test
• Measurement of Meter Pulse parameters

TEL mode parameters:

• Measurement of DC and AC voltages
• Resistance measurement
• Capacitance measurement
• Ring test
• Off-Hook test
• Measurement of DP parameters
• Measurement of DTMF parameters
• Generation of Meter Pulses

Features:

■ Hand-held programmable instrument with microprocessor control

■ Testing of subscriber lines, exchanges and telephone sets

■ Hand-held programmable instrument with microprocessor control

■ Ring generator for testing telephone sets

■ Battery for feeding the telephone line with DC current

■ Dial tone and fax tone generator for testing subscriber terminal equipment

■ Testing of pulse dialers by evaluating dial pulse parameters

■ Testing dual tone multifrequency dialers by evaluating DTMF parameters

■ Voltage, resistance and capacitance measurement

■ Level and frequency measurements in the voice frequency band

■ Generation of meter pulses, testing of meter pulse parameters

■ Standard telephone line terminations

■ Automatic evaluation of measured data by comparison with stored limit values