UMD - Model 320
Universal Trigger Module - Interface Converter

The UMD Model 320 Series Universal Trigger Module, is an intelligent microcontroller-based device designed to interface to solenoid based locking mechanisms as found in cash drawers and locks.

The UMD Model 320 can drive two solenoids, including a single feedback input line. Communication options include USB, Wi-Fi and Ethernet and is powered via the USB-C port.

A "unique" feature of the UMD Model 320 is the ability to be configure via a web browser which accesses the internal settings. Users can configure trigger codes, trigger voltage 12/24 volts, and other attributes, even update firmware and different application (apps) for specialised applications.

Commands to trigger the UMD Model 320 include USB from a host computer or Telnet over Ethernet or Wi-Fi.

The UMD Model 320 is preconfigured to support standard POS printer open commands, and drawer open/closed status using ESC/POS protocol and uses standard RJ12 modular connectors to accommodate standard cash drawer solenoid connectors.


  • Intelligent Microcontroller Based Trigger Module
  • Multi-Interface: USB-C, Wi-Fi or Ethernet
  • USB Configuration via Browser, or WiFi/Ethernet Web page
  • Configurable Solenoid voltage 12/24Vdc
  • Programmable Trigger Codes, including OPOS & ESC/POS compliance
  • Over the Air updates or special applications.


Physical Characteristics
Dimensions97 (l) x 61 (w) x 25 (h) mm
ColorBlack, Blue
Cash Drawer1 x RJ12 6 Pin Modular connector, up to 2 drawers
Power150mA (max)
Output DriveMax. 24V @ 1A
Repeat Rate5 - 7 sec.
Communication Interface
USBUSB 2.0 Type-C
Wi-Fi-IEEE 802.11 b/g/n
LEDPower, Trigger 1, Trigger 2

Ordering Information and Pricing
Part Number Model Number Description RRP
[A] Model 320 Universal Trigger Module with USB Interface (Includes 2m USB-A to USB-C Cable)
With USB Interface only
M320AU0000-F00 M320-U UMD Universal Trigger Module with USB Interface $99.00 U
With USB & Wifi Interface
M320AW0000-F00 M320-W UMD Universal Trigger Module with USB & Wifi Interface $121.00 U
With USB, Wifi & Ethernet Interface
M320AE0000-F00 M320-E UMD Universal Trigger Module with USB, Wifi & Ethernet Interface $176.00 U
[B] Accessories
1-6009-024-9 PP5RSUSBA Plug Pack 5Vdc Regulated 2.75W, USB-A $13.20 A
Power Supply Required for Ethernet