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GreenLee Compact Digital Services Protection DSP Test Telephone Greenlee 50647792 P The Compact DSP Test Telephone is a Pocket Size Fully Featured Instrument suitable for use by anyone involved in the maintenance and installation of analogue telephone circuits P P The Compact DSP Digital Services Protection Test Telephone has been designed to operate safely in situations where telephone wiring may be carrying Digital traffic Voltage feed to remote electronics or Hazardous voltages th
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