Data Sheet for Product

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Siemens Building Technologies DCF3 Radio-controlled clock for DCF 77 CK1N9808en
Landis & Staefa Division 09.11.2000
Ordering
When ordering, please specify the quantity, product name and type code.
Type Order No. Tender Specification Ref. No.
DCF3 radio clock for
DCF 77 signal
6FL4301-4NA14 15/47.002A
External aerial To be ordered directly from Hopf
Function
• Receives the time frequency standard transmitted by radio clock
• Adopts the standard time on the computer
• Performs automatic daylight saving time changes (from standard to summer time
and vice versa)
• The radio clock uses the caesium clock reference standard at the national institute of
metrology in Brunswick, Germany (error 1 second in 1 million years)
Prerequisites
• Operation must be via one of the serial ports of the X-OS
• Requires radio clock module with software package
• Computers must be located within a 1500 km radius of Frankfurt/Main, Germany
(approx. 950 miles)
• SICLIMAT X V3.1
Technical data
Type DCF3 radio-controlled clock
Power supply Consumption 2.5 VA
Operating voltage DC 18 – 60 V
Accuracy Time error ± 2 ms in relation to the DCF77 signal at the
point where the receiver aerial is located
Mounting Mounting method DIN rail
Connections External aerial
– Cable lengths Max. 500m aerial cable
– Electrical isolation DC 500 V
Dimensions / Weight Dimensions (H x W x D) 105 x 63 x 130 mm
Weight 0.7 kg
Ambient conditions Operating temperature 0 ... 70°C
Product safety Meets the requirements for CE
marking
ã 2000 Siemens Building Technologies Ltd.
Subject to change