Internal/External Analogue Display Clock. M385 provides a high readability time display where clear and precise analogue time display information is needed, night or day.



  •  Suitable for interior & exterior use
  • Robust construction to IP55 (IEC 529)
  • Excellent readability day or night
  • TCXO based Real Time Holdover Clock
  • User configuration via web browser
  • Fully CE & RoHS Compliant
  • Automatic adjustment to time signal



Options and ratings
Single/Double Side Single or double sided
Hands Hours & Minutes or Hours, Minutes & Seconds
Clock Diameter (mm) 230mm / 300mm / 400mm / 600mm / 800mm
Back light Illumination None / Fluorescent / LED
Colours Grey / White / Clear anodised aluminium - RAL737
Input Signal NTP or RS422 / RS485 / RS232 Serial Timecodes
Power Power Over Ethernet (PoE) or Mains (90-264VAC 50/60Hz)
Connections Internal terminal blocks for power and data
Application Indoor and outdoor public displays
Serial Interface RS232 or RS422 or RS485 Link configured - Terminal blocks
Network Interface NTPv3 [RFC1305]
Environmental Operating : -20°C to +50°C 0-95% R.H. Non Condensing : IP55
TCXO Holdover 1st year 1ppm : 600µs in 24 hrs
Service Life MTBF > 85000 Hrs
Mounting Ceiling or Wall - supplied with brackets
Viewing Distances 230mm diameter - 10 metres 300mm diameter - 20 metres 400mm diameter - 30 metres 600mm diameter - 60 metres 800mm diameter - 100 metres

A wide range of sizes, back lighting options and data interfaces make these clocks suitable for a variety of applications ranging from small internal offices and waiting rooms to large public venues, such as parks and public concourses. The network enabled units have a built in web based configuration server allowing full access to the menu configurations and IP address, subnet & gateway settings, thereby facilitating full monitoring, remote setup and local time preferences to be controlled.

All units are designed and supplied as long life, highly durable clocks ideal for high reliability applications. Options for timekeeping from the master clock system include pulsed, serial or NTP interfaces. All clocks automatically adjust to the correct master clock time upon receipt of a valid time code signal.

Typical applications include: Rail, sea and airport terminals, public stadiums and venues, banks, factories, hospitals and public halls.