A switch (such as a Request to Exit button) can be connected across the DI and 0V input connections to trigger the input.

The voltage input will detect a change of state, where input voltage of <1V is ‘input low’ and input voltage of >4V is ‘input high’.

This input can trigger a custom script, saved on VTAP Cloud platform, to perform tasks such as a beep, LED sequence, or output contact trigger. Or can send JSON to a third‑party cloud server.

In Local mode, the input can be monitored by custom software or a script, to trigger defined operations in software or perform tasks such as running an LED sequence, buzzer or relay output.

Use a 2‑way 5mm pitch Euro style connector for the input connection.

Two Output relays can be used to switch loads up to 5A @ 50V AC. The contact arrangement is 1 Form C (CO).

The outputs can be set to: ON, OFF, timed ON/OFF, or delay ON/OFF. These options support a wide range of scenarios.

Both output connectors provide +12V and up to 1A to power the equipment connected. If the connected equipment requires a higher current, the power must be supplied by using a different wiring scheme.

Use 5‑way 5mm pitch Euro style connectors for the output connections.

VTAP PRO readers can drive external serial LEDs using the VTAP100‑PRO‑EXP1 expansion board. The serial LEDs can be configured to show a default colour or sequence, and can also change colour, flash or run an animation in response to events such as a successful pass or card/tag read, VTAP start-up or certain error conditions. If you are using VTAP PRO readers in Cloud mode, please contact vtap‑support@dotorigin.com to define an LED sequence and triggering event in VTAP Cloud. In Local mode, the VTAP command interface can be used to drive serial LEDs from a free terminal emulator such as TeraTerm or PuTTY, or your own custom software or script. (Refer to VTAP Application Note on External LED control with VTAP50 for example LED control sequences).

External LED output can be used in VTAP reader applications which require LED feedback, such as:

• Kiosks;

• Turnstiles

• Arcade gaming machines (VTAP PRO readers with EXP1 replacing coin mechanism)

Depending on application, a serial LED matrix, a serial LED strip or combination of both can be used.

The Serial LED Output can be configured to drive up to 255 serial LEDs. It uses the Neopixel protocol for driving serial LEDs.

The VTAP100-PRO-EXP1 will supply +5V and up to 1.5A to power an LED strip or matrix. The power drawn by your chosen LEDs and the way you intend to use them, can restrict the number of serial LEDs that can be supported. The number of LEDs will be most restricted when each RGB LED is being run at full power (white) continuously. If the usage involves only red, blue or green, or if a pattern on a matrix will only use a subset of LEDs, then a larger number of LEDs can be supported.

Serial LEDs are typically specified in terms of the current drawn by a single Red, Green or Blue LED. Common LED current specifications are 5mA, 12mA and 20mA. Test results for the number of LEDs of each type that can be powered are given in the following table:

Any theoretical maximum number of LEDs, using lower powered LEDs on a lighter duty cycle, would still be restricted by the 255 maximum number of LEDs that can be configured.

Use a 3‑way Molex® Pico‑Clasp™ connector for the Serial LED Output connection.