• Font Size:
  • A
  • A
  • A

Product/Service Catalog

SMT Rugged ASCII Panel Mount HMI Terminal

Model: SMT

Two Technologies, Inc.

Looking for a rugged, low-cost panel mount terminal? The SMT is a fully functional ASCII terminal designed specifically for industrial applications. The SMT is flexible! Its menu programmable function keys can transmit a user-programmed character, while host equipment has direct control of cursor movement and appearance, clearing all or part of the display. Function key definitions and operating parameters are stored in non-volatile memory. Available I/O configurations Include RS-232 and RS-422 as well as CMOS/LSTTL logic levels.

Like all Two Technologies' products, the SMT is remarkably rugged. The case is molded from Valox® 420, one of the most durable, chemical-resistant materials available today. Proper mounting of the SMT, with the Two Technologies' mounting kit, assures NEMA 4/12 compliance. Securely framed and clamped into place, the keypad surface provides excellent splash resistance and prevents curling or peeling of the keypad overlay. Keypad layout includes a 20-key configuration and is available with standard or custom graphics.

Custom configurations and special options available, including: Custom Default Settings, Displays, Keypad Graphics, I/O Interface, Firmware, Case Color and Logo Tag

Three (3) year warranty included.

Contact Prodcuct Sales directly at 215-837-5603 for more information.


  • Reflective/Transreflective Liquid Crystal Display
  • 4 Row x 20 Character Display Format
  • Standard Character Set: US ASCII (5 x 7 pixels). Latin1 and European Character Sets Also Available as an Option.
  • Dark Characters on Light Background  (except VFD)
  • Optional Super Twist, Supertwist Backlit, Extended Temperature Supertwist Backlit, VFD and Extended Temperature VFD available.

Keys & Switches

  • Type: Membrane
  • Layouts: 20-key
  • Feedback: Tactile and Audible
  • Four Programmable: Function Keys
  • Optional Backlit and Backlit Phosphorescent and Elastomeric Keypads available


  • Power Voltage Available in: 5 VDC Regulated or 7.5-12 VDC Linear Regulator or 9.5-28 VDC Switching Regulator
  • Current: 45-50 mA Typical (Some Options Will Require Additional Current)


  • Type: RS-232 or RS-422 or CMOS/LSTTL lEVEL
  • Handshaking: 2 Lines (DTR, DTS) for RS-232, CMOS/LSTTL
  • Data Rates: 110 to 9,600
  • Parity Range: Even, Odd, Mark, Space and None
  • Control Bits: 1 Start and 1-2 Stop Bits
  • Standard Interface Connector: 6 Pin Female Modular Connector 


  • Nematic Displays
    • Storage Temp: -20°C to +70°C
    • Operating Temp: 0° to + 50°C
    • Extended Temp: -20°C to +70°C
  • Vacuum Fluorescent Displays
    • Storage Temp: -20° to + 70°C
    • Operating Temp: -20° to + 70°C
    • Extended Temp: -40° to + 85°C
  • Humidity 5-95% (non-condensing)
    NEMA 4/12- panel mounted (using supplied hardware)

User Selectable Options

  • Baud
  • Data Bits
  • Parity
  • Display PE
  • Repeat
  • Handshake
  • Echo
  • Self-Test

Custom Options

  • Default Settings
  • Displays • Keypad Graphics
  • I/O Interface
  • Firmware
  • Case Color
  • Logo Tag


  • FCC Class A
  • CE (standard configuration)
  • CENELEC EN 55022
  • CISPR Class A
  • EN 50082.1
  • EN 60950


  • Panel Mount (Multiple mounting options)
  • Programmable Function Keys (single character)
  • Membrane or Elastomeric Keypad
  • 20 Key Standard Keypad
  • Parameter Setup
  • Up to 9,600 bps Communication
  • NEMA 4/12
  • Optional VT-100/ANSI 3.64 Compatibility
  • Height: 4.9 Inches (124 mm)
  • Width: 4.9 Inches (124 mm)
  • Depth w/Cover: 1.3 inches (33 mm)
  • Depth w/o Cover: 1.1 inches (28 mm)
  • Weight: 12 Ounces (340 grams)
  • Case Front: Valox 420



Leave this field empty

Browse By Products/Services Browse Companies