Function Keys

Use the blue keys to select the different test functions in the 965DSP-B. The blue keys become number keys when editing.

Use the [Voltage] key to measure DC or AC voltage.

Use the [Current] key to measure loop or ground Current.

Use the [Resistance] key to measure resistance.

Use the [Toolbox] key to access: Load Coil Count, Self-Calibration, Ohms to Distance, or Caller ID.

Use the [Opens] key to find the distance to an ‘open’ (or break) in a pair or cable.

Use the [Tone] key to send tones for pair identification or measuring loss.

Use the [RFL] key to find the distance to a resistance fault on a pair.

Use the [ISDN] key to verify the presence of an ISDN signal, and to measure near-end and far-end errors on an active ISDN line.

The [TDR] key is not used in the 965DSP-B. Contact 3M Customer Sevice at 800 426 8688 concerning TDR upgrades.

Use the [dB] key to measure Loss, Noise, Longitudinal Balance, or Wideband Loss.

Use the [Auto] key to perform a series of tests on an Active or Inactive pair.

Use the [Talk Set] key to dial numbers or to place a phone call on a working pair.

All functions (except for Tone and TDR) ‘time out’ in five minutes if no key has been pressed. Tone and TDR time out after 30 minutes.