The TCP/IP Synchronised Real Time Clock System ED401M / EC402M is the most ideal system as a Centralised Clock System. A host computer on the network with Server Application Software EC402 is designated as the Time Server (Master clock). It periodically updates the time and the date on all of the slave clocks (ED401M) installed in the network. The Time Server EC402M is synchronised with the National Standard Time Server or GPS.


Designed and manufactured in Singapore

Project General Usage

TCP/IP Synchronized Real Time Clock System can be used in schools, offices, libraries, sports complexes, airports, factories, bus-interchanges, hospitals and any other buildings/organization where synchronized time information is essential.

TCP/IP Real Time Clock - ED401M

ED401 is a large character time Display with an Ethernet network interface. The Real Time Clock (RTC) can be periodically synchronised with a host computer clock over the network. The network interface supports both 10BaseT and 100BaseT Ethernet connections. With the TCP/IP Synchronised Real Time Clock system, one master Time Server will update all slave clocks with Time Server time.

Display 10cm, 7 Segments, 4 digits
Protocol TCP/IP
Interface 100 Base or 10 Base T Ethernet (RJ45)
Visibility 45 metre (150 Feet)
Time format 12 or 24 Hour
Power 230 VAC / 50Hz

Server Application Software - EC402M

EC402M is an Intelligent Server Application Software that performs time synchronisation with slave clocks, clock hierarchy management, instant time control, clock monitoring. Server Application Software EC402M is installed in the Time Server - Personal Computer.

Clock hierarchy management
Schedulable time synchronisation
Instant time control
Database connectivity & clock monitoring function
System Requirements
  • Operating System : Win 10
  • Ethernet : 10/100 BaseT Ethernet (RJ45)


Wireless-LAN Module enables the Clock ED401M to connect to the existing Wireless-LAN network and perform all the functions.

Reference Projects in Singapore
  • Nanyang Technological University (NTU)
  • Republic Polytechnic (RP)
  • Singapore Sports School
  • SIM - Singapore Institute of Management
  • Ministry of Social and Family Development
  • NatSteel Holdings Pte Ltd (A TATA Steel Enterprise)
  • Chung Cheng High School
  • Holly Innocents High School
  • Orchid Park Secondary School 
  • Poi Ching School
  • Bowen Secondary School
  • Westwood Secondary School

Our Installations