Overview


The DSP-19 is specifically designed to be installed into a LiftMaster® model CSW24 operator or other models that use the same plug-in loop detector. The very low current draw and low voltage range is ideal for solar applications.

The DSP-19 can be connected to a standard inductive loop or one of Diablo Controls mini-loops. The Diablo Controls mini-loop is a small “pipe shaped” device approximately 4-1/2” by 1” and is designed to be buried in the ground to detect vehicles. If the mini-loop feature is turned on, the detector cannot be used as a safety detector as there is no presence detection in this mode of operation. Contact Diablo Controls for more information on the mini-loop.

The DSP-19 can be used as either a safety loop or free exit loop detector. It also has the flexibility to be either “fail-safe” or “fail-secure”.

The DSP-19 has a single solid-state open-drain FET output capable of sinking more than 250 milliamps.

The DSP-19 has 10 selectable sensitivity settings and uses a 6-position DIP switch to configure the detector. This includes the Diablo Controls mini-loop selection as well as sensitivity boost, extended presence and fail-safe/fail-secure operation. This makes the DSP-19 very flexible and versatile for those installations that need a little more than a standard detector.

Ordering Information


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  • DSP-19 – Only one model available

Application Notes


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Cut Sheet


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Instructions & Specs


LED Indicators: The green Power LED will be on blip on once every two seconds to indicate the detector is powered and operating normally in the low power mode. The LED will be on solid when there is possible activity over the loop. If the LED is not in one of these two modes, it is indicating a current or prior fault.

Failure Operation: In fail-safe, the detector will output a detect when the loop circuit is failed. In fail-secure, the detector will not output a detect when the loop circuit is failed. Set DIP switch 6 to off to operate in fail-safe mode. Set the switch to on to operate in fail-secure mode. Note: Never use a fail-secure detector for a safety loop.

Loop Inductance: 20uH to 1500 uH (Including lead-in)

Power: This detector is powered with 8 to 35 volts DC.

Operating Current:  Sensitivities 0-6: Without calls is 1.00 ma maximum, with a call is 26.00 ma maximum
Sensitivities 7-0: Without calls is 1.60 ma maximum, with a call is 26.00 ma maximum

Output Ratings: Open-Drain Solid State Output: 250 milliamps @ 30 volts

Connector: Rear Molex Connector.
1: Loop or Mini-Loop
2: Loop or Mini-Loop
3: No Pin
4: N/C
5: N/C
6: N/C
7: N/C
8: Power – and Output common
9. Power +

Size: Height: 2.362″ Width: 0.866″ Depth: 2.008”

Operating Temperature: –35°F to 165°F (-37°C to 74°C)