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Clock Addons

Additional hardware components



TimeClock Plus® offers the ability to create and configure a schedule of events for given times by day of the week, which upon execution triggers the Alert connected to the Digital Input/Output port (optional) on our RDTg 300 and 400 Series Terminals.

Our Multi-Function Alert is engineered for use in varying environments. Selectable tone and volume output make this Alert a valuable utility for many purposes.



  • Nominal Voltage - 12~24Vdc
  • Current Consumption (tone dependant) - Between 12.5 - 37.4 mA
  • Sound Output (tone dependant)
  • Alarm Tones - 31
  • Color - Red
  • Sounder type - DC Audio Alarm

External Prox

For those customers who wish to have an external proximity reader attached to an RDTg 300 and 400 Series Terminal, many brands/models are supported. Often, external readers may be used in conjunction with our Digital Input/Output option to control door access.

  • HID
  • HID with Keypad
  • Casi Rusco
  • Indala
  • ioProx
  • AWID
  • Keri

Digital Input/Output (DIDO)

Each RDTg 300 and 400 Series Terminal can be configured with a Digital Input/Output (DIDO) port for integrated control over an external device such as an electronic door lock for access control, or an external loud bell, ringer, or Alert device.

Control over the DIDO port is managed within TimeClock Plus™. Alerts can be daisy chained up to five devices in Series.

External CCD

Our RDTg 300 and 400 Series Terminals can be configured to support external bar code readers, including handheld CCD devices used in floor production and job costing.

CCD Scanners

UPS Battery

To prevent costly and confusing downtime, our RDTg 300 and 400 Series terminals can be fitted with an optional Battery Backup. The compact package lies hidden in the wall mount behind the clock and provides alternate power to an RDTg 300 or 400 Series terminal for up to 1.5 hours during a power outage.

Though real-time is it's normal operational state, the RDTg 300 or 400 Series terminal with Battery Backup seamlessly continues to collect employees' clock transactions in the unfortunate case of a power outage.

BBB Rating: A+

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