Documentation : 
Master clock for synchronisation of a digital and analogue clock network.
Key points :
• Wired or wireless time distribution and relay programming.
• Master clock with programmable circuits, control of clock network, relays and bells, NTP time reference.
• PC software programming and USB key transfer.
Description:
• LCD display : hour - minute - second - date.
• Synchronisable via GPS, FI or DCF antenna or NTP.
• 3 programming circuits with week mode, holiday or special day mode for the activation of bells and other systems such as heater, air conditioning, lighting, alarms access control, etc…
• Automatic resetting of time distribution after power shortage.
• Clock synchronisation with wired or wireless time signals.
• Programming though PC software and data transferring tough USB key or IP.
• Time distribution and relay / bell activation through radio DHF signal.
• ABS casing for wall-mounted or aluminum casing for 19 ″ rack (1U height).
• Accurate to < 5 milliseconds.
Time distribution :
• 24 V minute/second impulse 0,5A,
• AFNOR,
• DHF,
• D1D2 230V (tower clock),
• NTP server and/or client
Time programming :
• Wired relays,
• Wireless bell and relay systems.
Accessories :
• FI, DCF or GPS radio antennas
• Wireless transmitter or repeater
• Wireless relay controller
• Wireless bell system
Optional cards :

• Afnor output card (3 outputs), serial output card (2 outputs)
• 24V minute/ second impulse card: 0,5A
• Relay card: 3 relays
Applications :
The Sigma NTP Server provides a high precision time directly to TCP/IP networks using NTP (Network Time Protocol). It synchronises time of any computers or Clocks (Analogue or Digital).
The Sigma is upgradeable and modular to match various installation requirements such as Schools, Industries, Hospitals, Administration buildings, Railway stations, Airports…
All our clocks are NTP/IP compatible, follow the link for more information