Documentation : 
Master clock with programmable circuits, control of clock network, relays and bell.
Key points :
• Wire or wireless time distribution and relay programming.
• PC software programming and USB key transfer.
Description:
• LCD display : hour - minute - second - date.
• Synchronisable via GPS, FI or DCF antenna.
• 3 relays: 1 for alarm and 2 for D1D2 control
• Automatic resetting of time distribution after power shortage.
• Clock synchronisation with wired or DHF wireless coded time signals.
• USB slot for system update.
• Automatic summer/winter changeover.
• ABS casing for wall-mounted or aluminum casing for 19 ″ rack (1U height).
Time distribution :
• 24 V minute/second impuls 1A,
• AFNOR,
• DHF,
• D1D2 230V (tower clock).
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 (CA 15 DHF)
Applications :
The master clock Sigma is upgradeable and modular to match various installation requirements such as Schools, Industries, Hospitals, Administration buildings…