Modular TRIO Set-Up (Tap &/or Swipe &/or Chip)

Designed for outdoor use, OTI Trio is a modular and secured contactless NFC card reader built specifically for the unattended market, providing quick and easy support for electronic and mobile payments including Apple Pay and Android Pay.

OTI Trio offers convenient payment experience for magnetic stripe and NFC card holders. With modular design for easy installation and multiple connection options, the Trio is ideal by functionality and dimensions for unattended, vending machine environment, pay-at-the-pump and drive-thru applications.

Cashless and Contactless Reader Ideal for Outdoor Use

Modular TRIO


  • Flexible, software configurable, certified intelligent reader solution
  • oti advanced Host – Reader TLV based protocol
  • Contactless transparent communication support
  • ISO/IEC 14443 Type A/B and Mifare full support
  • 2 x 16 character display
  • 4 LED indicators
  • 8VDC – 45VDC (On-board Switch Mode Power Supply)
  • Supports Apple Pay

OTI & USA Technologies Case Study

USAT was looking for a long term provider of cashless payment solutions utilizing NFC technology. USAT was using solutions from various suppliers which caused issues with customer service, installation, parts and packaging. They were looking for a partner who could provide a solution according to their specifications, at a fair price, proven reliability, quality manufacturing and able to meet critical delivery schedules. An important consideration was a partner who was successful in its market, and had a strong R&D commitment to keep up with emerging technologies.

Supported Applications:

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DUO Supported Applications
  • Contact EMV L1
  • Contact EMV L2
  • Contactless EMV L1
  • VISA PayWave MSD
  • VISA PayWave qVSDC
  • NDOT over VISA for transportation
  • VISA Global Transit Payment Pilot Specification
  • VISA Pilot Visa PayWave Ticketing Extension Specification
  • VISA Asia Pacific WAVE 2
  • MasterCard PayPass M/Chip (including Data Exchange)
  • MasterCard PayPass Mag Stripe
  • NDOT over MasterCard for transportation
American Express
  • AMEX ExpressPay
  • Discover ZipNetwork
  • Interac Flash®
  • Mifare Ultralight
  • Mifare Classic
  • Mifare DESFire (optional)
Transparent (Pass-Through) Communication
  • ISO/IEC 14443 Type A – Transparent Proximity
  • ISO/IEC 14443 Type B – Transparent Proximity
  • ISO/IEC 15693 Vicinity (optional) – Transparent Vicinity
  • Magnetic Stripe Card – ISO/IEC 7813, Track 1 + Track 2
  • Additional proprietary applications

Technical Specifications

Feature Specification
RF Interface:
RF Carrier Frequency 13.56 MHz
RF Output 450mW
ISO/IEC 14443 A&B and Mifare Full compliance
ISO/IEC 15693 Optional
Magnetic card head:
Head Life 1,000,000 Min Passes
EMV Contact interface
SAM Interface (Optional)
Communication Links:
RS232, RS485, USB or TTL
Default Pigtail cable connector Molex MicroFit 43025_0600
2×16 LCD with backlight Display size: 2.58/0.98” (65.5/25mm)
Character size: 0.2/0.1” (5/2.55mm)
Operating temperature:
-22°F to 176°F (-30°C to 80°C)
4 programmable
on-board LEDs
4 Green super bright transaction feedback LEDs
1 “Button-Led”
Buzzer Multi-tone buzzer (up to 5VDC)
Buttons support Up to 3 buttons
Buttons durability 1,000,000 operations min.
Magnetic head decoder
Electronic Board Power Requirements:
8VDC – 45VDC On-board switching power supply
Max power consumption 3W (RF signal ON)
Mechanical (without contact interface):
Dimensions H – 4.1665” (105.83mm)
W – 3.23” (82mm)
D – 1.46” (37mm)
Weight 212 gr.
Vibrations 10 ¸ 200 Hz @ 2.0G
Mechanical (with contact interface):
Dimensions H – 4.1665” (105.83mm)
W – 3.54” (90mm)
D – 1.46” (37mm)
Weight 240 gr.
Vibrations 10 ¸ 200 Hz @ 2.0G
Operating -30°C to 70°C (-22°F to 158°F)

Standards Compliance