DIABLO DSP-50, Plug-In Vehicle Detector - ***Replaced by DSP-55***

• Can be connected to a standard inductive loop as well as Diablo Controls Free Exit Probes.
• Small profile, perfect for many installations.
• Three Solid State outputs.
• Fail-safe or Fail-secure operation.
• Wide low-voltage operation
• Separate Power/Fail and Detect LEDs.
• B Outputs can be presence, pulse on entry, pulse on exit, or loop fail.
• Flicker display shows occupancy of the detection zone when operating in a pulse mode.
• Delay or extension time is possible

LED Indicators: The green Power LED will be on steady to indicate the detector is operating and powered. In the case of a loop circuit or mini-loop failure, the green LED flashes slowly (twice per second) for an open loop circuit failure.
The green LED will flash fast (10 times per second) to indicate a shorted loop circuit.

The red Detect A LED will turn on when a vehicle is over the loop detection area. If delay is programmed, the LED will blink slowly during the delay interval. If extension is programmed, the LED will blink fast during the extension interval.

The red Detect B LED will echo the B output.

Sensitivity Switch: This detector has a 10-position rotary sensitivity switch. The unit is shipped in the “5” position which is the normal sensitivity level.
Sensitivity can be adjusted up and down from this level to accommodate different street loops or mini-loops.

Frequency: One of four operating frequencies can be selected by changing DIP switches 9 and 10

Loop Type: Turn DIP switch 8 off to operate with a normal inductive loop. Turn the switch on to operate with a Diablo Controls mini-loop.

Extended Presence Time: Turn DIP switch 7 off to hold a vehicle’s presence for about 20 minutes before tuning it out. Turn the switch on to hold it much longer.

Output B Control:

DIP Switches 6 and 5 (Effects output “B” only)

6 = OFF and 5 = OFF B output is normal presence output.

6 = OFF and 5 = ON B output is an “Entry“ pulse.

6 = ON and 5 = OFF B output is an “Exit” pulse.

6 = ON and 5 = ON B output is a “Fail” condition.

Sensitivity Boost: Turn DIP switch 4 off to operate with normal sensitivity. Turn DIP switch 4 on to automatically boost sensitivity during a call to improve detection of high-bed vehicles and truck/trailer combinations.

Sensitivity boost is not applicable to most situations.

Failure Operation: A fail safe detector will output “detect” when the loop circuit is failed. This is always useful on a safety loop. On the free exit loop this will keep the gate open until the situation is fixed.

This is useful in applications where it is important to allow traffic flow to continue. A fail secure detector will never output “detect” when the loop circuit is failed. This will keep the gate closed.
This is useful in high-security areas or installations where containment is needed. Turn DIP switch 3 off to operate in fail safe mode. Turn the switch on to operate in fail secure.

Note: Never use a fail secure detector on a safety loop.

Output A Control

DIP Switches 1 and 2 (Effects output “A” only)

1 = OFF and 2 = OFF Output A normal Presence.

1 = OFF and 2 = ON Output A has 2 seconds of delay.

1 = ON and 2 = OFF Output A has 2 seconds of extension.

1 = ON and 2 = ON Output A has 5 seconds of extension.

Mini-Loop Operation: The mini-loop mode will always be an entry pulse. As such, it is perfect for free exit operation. Never use the mini-loop as a safety loop.

Outputs: Solid-state (open transistor collectors) for both detect” and fail outputs. 30 mA maximum current sink - transient voltage protected.

Power: 12 to 30 volts DC

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

Enclosure: Impact resistant, high temperature plastic.

H: 2.375” (60.4 mm) W: 0.86” (22 mm) L: 2.25 ” (58mm)

Connector: (looking into the connector – right to left.)

1 Loop or Mini-Loop

2 Loop or Mini-Loop

3 Power input “+”

4 Not Connected

5 Not Connected

6 Output B

7 Output B reversed

8 Output A

9 Power input “+”

10 Power (and logic) common

DSP-55 Detector Only

DSP-55-75 Detector + Free Exit Probe with 75’ Lead-in

DSP-55-100 Detector + Free Exit Probe with 100’Lead-in

RK1 & RK3 Racks sold separately

DSP-50 Manual

DSP-50 Cut Sheet

DSP-50 Size Chart

Plug-in loop detection for gate operators with a 10-pin Molex detector port.

• Free exit loops
• Safety and reversing loops
• Residential driveway gates
• Commercial slide and swing gates
• Solar and DC gate operators