Diablo Controls AVI-222 Two Channel Card-Rack AVI Receiver
The Diablo Controls AVI-222 is the receiving side of a Diablo automatic vehicle identification system. It is a two-channel, card-rack style receiver designed to fit a standard 222 rack. Each channel uses its own roadway loop, allowing the receiver to detect and identify vehicle-mounted Diablo AVI transmitters as they pass over the loop field. Once a valid code is recognized, the channel output can be used by the access-control system, parking controller, gate operator, barrier gate controller, or other low-voltage control input. The AVI-222 is commonly used in facilities that need hands-free vehicle ID rather than a manual remote or keypad entry, such as emergency access lanes, transit yards, trucking facilities, gated properties, and parking systems. Because the receiver handles code validation, replacement should be based on the rack type, transmitter family, channel count, loop wiring, and programming records.
Compatible With
- Diablo Controls AVI-X-1 and AVI-X-2 vehicle-mounted transmitters when codes are programmed as valid.
- Diablo Controls automatic vehicle identification systems using standard 222 card-rack receiver format.
- Two independent roadway loop inputs, one per receiver channel.
- Parking control, barrier gate, gate operator, emergency access, bus/transit, fleet, trucking, and controlled-lane access systems using the receiver output.
- AVI systems requiring independent channel validation for two lanes or two loop inputs.
- Related to Diablo AVI code readers, AVI transmitters, and optional AVI-SD security-device installations.
- Not a replacement for standard loop detectors, AWID/HID proximity readers, handheld remote receivers, or other-brand AVI receiver formats unless the system is specifically designed around the AVI-222.
Features & Specifications
| Manufacturer | Diablo Controls |
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| Product Type | AVI Receiver |
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| Part Number | AVI-222 |
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| Application | Two-channel automatic vehicle identification receiver |
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| Mounting / Format | Standard 222 card-rack style receiver |
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| Channels | Two independent receiver channels |
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| Loop Inputs | Two roadway receiving loops, one per channel |
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| Code Capacity | Identifies AVI-X family code set up to 19,683 codes where supported |
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| Common Use | Parking, access control, emergency access, transit, trucking, fleet lanes |
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| Notes | Receiver programming determines valid and invalid transmitter codes |
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Also Known As / Related Part Numbers
- AVI-222
- AVI222
- AVI 222
- Diablo AVI two-channel receiver
- 222 rack AVI receiver
- AVI-X-1 transmitter - related transmitter
- AVI-X-2 transmitter - related transmitter
- AVI-SD security device - optional related accessory
Technician Note
The AVI-222 is not a general-purpose loop detector. It uses loop inputs to receive AVI transmitter codes, then validates those codes by channel. If the site is only trying to detect vehicle presence, a standard loop detector may be the correct product instead.
Before Ordering Checklist
- Confirm the cabinet uses a standard 222 card-rack receiver format.
- Verify whether one or two receiver channels are needed.
- Confirm the lane loops are intact and correctly connected to the receiver channels.
- Confirm the transmitter code list and valid/invalid programming requirements.
- Confirm the output type required by the gate, barrier, parking controller, or access panel.
Professional Advisory
Changing an AVI receiver can affect who can enter a property. A qualified access-control technician should document existing code programming and test each lane after replacement.
Important Ordering Warnings
- Do not use the AVI-222 as a basic safety loop detector.
- Existing transmitter codes may need to be programmed into the replacement receiver.
- Wrong rack format or output wiring can prevent the system from operating.
Product Q&A
What does the AVI-222 do?
It receives and identifies codes from compatible Diablo AVI transmitters through roadway loops, then provides an output when a programmed code is valid.
How many loops does the AVI-222 use?
It uses two loop inputs, one for each receiver channel, so each channel can operate independently.
Is the AVI-222 a loop detector?
It uses loops as receiving antennas for AVI codes, but it is an automatic vehicle identification receiver, not a standard vehicle presence detector.
What transmitters are commonly used with it?
It is commonly used with Diablo AVI-X transmitters, including AVI-X-1 and AVI-X-2, when the receiver is programmed for those codes.
Can it replace another brand's receiver?
Only when the rack format, transmitter code format, loop wiring, and output requirements match. It should not be assumed compatible with unrelated AVI, remote, or proximity systems.
