Diablo DSP-55 Detector and Free Exit Probe Kits Manuals & Support

Diablo DSP-55 / DSP-55-75 / DSP-55-100

The Diablo Controls DSP-55 is a compact plug-in loop detector that also works with the Diablo Free Exit Probe. It runs on 8 to 35 VDC for low voltage and solar installs.

The DSP-55-75 and DSP-55-100 kits add a Free Exit Probe on a 75 ft or 100 ft lead-in. The probe goes in a small vertical hole, so it suits gravel, dirt and pavers.

Buy the DSP-55 / DSP-55-75 / DSP-55-100 (4 options)

Identify your model

The DSP-55 has a 10-pin Molex connector and three solid-state outputs (A, B and B inverted). It is DC only. The DSP-50 is the earlier model, replaced by the DSP-55.

Key specs

Power 8 to 35 VDC
Outputs 3 solid-state, 250 mA at 30 V
Connector 10-pin Molex
Sensitivity 10 positions, factory 5
Loop inductance 20 to 1,500 µH
Operating temperature -35 to 165 °F

Manuals and documents

Installation Manual

Spec Sheet

Troubleshooting

Gate does not open or reopen

  • Check the detect LED when a vehicle is on the loop.
  • Raise the sensitivity one step at a time.

Detector stays in detect

  • Check the loop and lead-in for a break or short to ground.
  • Reset the detector so it retunes.

Random detects

  • Set nearby detectors to different frequencies.
  • Check that the lead-in is twisted and the saw cut is sealed.

Common questions

No. The probe gives an entry pulse for free exit only.

No. Outputs are solid-state. Use a Diablo RK-1R rack if the operator needs a relay contact.

Pick the lead-in length that reaches from the probe to the control box: 75 ft or 100 ft.

Buy the Diablo DSP-55 Detector and Free Exit Probe Kits

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