Diablo Controls DSP-11-LV Microdetector Vehicle Loop Detector
The Diablo Controls DSP-11-LV is a micro-sized, low-voltage, single-output loop detector designed around an 11-pin plug-in base. It is used when a gate, door, parking, or access-control panel needs a simple vehicle-detect signal from one inductive loop.
Unlike larger detectors with several front-panel adjustments, the DSP-11-LV is a simple switchless style detector that automatically adjusts to the loop. This makes it useful for service calls where the application is straightforward and the technician wants a compact detector with clean power/fail and detect indication.
Compatibility depends heavily on the base and voltage. The 11-pin format, low-voltage input, loop inductance range, and relay behavior must match the original detector. Do not choose this item only because the part looks similar to another plug-in detector.
Compatible With
Compatibility depends on the detector model, supply voltage, loop or probe type, wiring base, relay output needs, and how the gate, door, barrier, parking, or access-control panel is designed to receive a vehicle-detect signal.
- Low-voltage 11-pin single-channel loop detector installations
- Gate operator and parking control cabinets that use a single-output vehicle detector
- Access-control loops, safety/hold-open loops, and presence loops where the controller accepts the detector output
- Inductive loops commonly within the 20 to 2000 microhenry range
- DSP-11-LV, DSP-11LV, and VD-911 style reference applications when voltage and base match
- Not a substitute for line-voltage DSP-11 versions, dual-channel detectors, or different pin bases
Features and Specifications
| Manufacturer | Diablo Controls |
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| Product Type | Micro single-output vehicle loop detector |
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| Part Number | DSP-11-LV |
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| Application | Low-voltage 11-pin loop detector replacement |
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| Supply Voltage | 10 to 30 VAC or VDC |
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| Connector Style | Industry-standard 11-pin base |
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| Loop Type | One in-ground inductive loop |
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| Current Draw | About 35 mA no-vehicle reference from manufacturer literature |
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| Loop Inductance | 20 to 2000 microhenries commonly referenced |
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| Notes | Match voltage, pin base, and output behavior before ordering |
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Also Known As / Related Part Numbers
- DSP-11-LV
- DSP-11LV
- DSP-11
- VD-911
- VD911
- Diablo DSP-11 microdetector
- Diablo 11-pin vehicle detector
- DSP11LV
Technician Note
If the detector is being installed in an older socket, confirm the socket is wired for the same pinout and low-voltage power. Similar 11-pin detectors can have different operating features or voltage options.
Before Ordering
- Verify the old detector uses an 11-pin base.
- Confirm low-voltage power is present at the detector socket.
- Confirm the loop is a standard inductive loop, not a Diablo mini-loop probe-only setup.
- Check the controller input that receives the detect relay.
- Inspect for loop faults before replacing the detector.
Important Ordering Warning
Do not install a low-voltage DSP-11-LV into a socket wired for 117 VAC or 230 VAC detector power.
Professional Advisory
Vehicle detector wiring is part of the gate, door, parking, or access-control safety and command circuit. Do not bypass monitored safety devices or use a detector to defeat required entrapment protection. For high-voltage wiring, cabinet faults, nuisance detection, or unsafe gate movement, use a qualified gate or access-control technician.
Product Questions and Answers
What makes the DSP-11-LV different from the DSP-10-LV?
The DSP-11-LV is a compact 11-pin microdetector with simpler switchless operation, while the DSP-10-LV is a fuller-feature detector in the DSP-10 family.
Does this detector need sensitivity adjustment?
The DSP-11-LV is designed to automatically adjust to common loop sizes, but the loop and lead-in still must be in good condition.
Can I use it in any 11-pin socket?
No. The socket must match the correct voltage, pinout, and detector function.
Is VD-911 related to this detector?
VD-911 is commonly seen in DSP-11 style documentation and search references, but the physical part number and voltage should still be confirmed.
Can this replace a safety sensor?
No. It is a loop detector and is not a replacement for required monitored photo eyes or safety edges.
