TRIO – Modular 3-in-1 Contactless/Chip/Magstripe Reader

OTI TRIO credit card reader is a modular payment device that can support up to three cashless payment interfaces in one small stylish enclosure. The reader is specifically designed for installation in vending machines to allow cashless payment with magnetic payment cards, as well as mobile (Apple Pay, Android Pay, Samsung Pay), EMV chip and contactless payment cards (NFC).

For those not purchasing the full solution, adding additional modules is a quick and simple, vandal- and tamper-proof, plug-in hardware retrofit.

Contactless Reader designed for installation in vending machines


  • Modular design by Hardware and Software
  • Flexible, software configurable, certified intelligent reader solution
  • Supports Apple Pay
  • Available as OEM
  • Bi-directional RF interface between Reader and Contactless Smart Cards
  • 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)
  • SAM Interface
    • One optional Slot, ISO/IEC 7816 compliant
  • Magnetic Interface
    • Magnetic Card Reader
    • 1,000,000 passes minimum
  • Contact Interface
    • EMV contact chip support
  • Security
    • High security encryption system (3DES/AES/RSA) protects the reader’s operating system
    • Vandalism-proof PKI protected software update mechanism
    • DUKPT (Derived Unique Key Per Transaction) support
    • Offline PIN Authentication support
    • Secure boot loader (firmware update) protocol
3-in-1 - Contactless. Swipe & Chip

Customized for your needs

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

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.

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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  • Contact EMV L1, L2
  • Contactless EMV L1
  • VISA PayWave MSD
  • VISA PayWave qVSDC
  • NDOT over VISA for Mass Transit
  • 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 Mass Transit
American Express
  • AMEX ExpressPay
  • 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  a
SAM Interface  a
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

OTI standards compliancy ISO 2015