Sigma C Master Clock


Wire or wireless time distribution.

  • Time distribution and programming of relays via DHF and NTP.
  • Master clock with programming circuits, control of clock network, relays and sounders, NTP time Reference.
  • Modular design allowing the addition of 2 option cards.
  • Quartz oscillator time base that can be synchronised by a ALS, DCF, GPS or NTP antenna.
  • 3 programmable circuits with weekly, holidays or special day modes for the control of bells or other sytems such as heating, air conditioning, lighting, alarms, access control…
  • Automatic resetting of time distribution after power shortage.
  • Automatic summer/winter changeover.Programming by PC based software and program upload through Ethernet network.

All Master Clocks available at
Brochure download available here


Auto Time Systems
Appley Bridge, Wigan WN6 9DB, UK