51272
5
Zoom out
Zoom in
Previous page
1/20
Next page
Atomic DCF77 Clock
1
INTRODUCTION
DCF77N clock
The Elproma DCF77N clock is developed to guarantee the exact time on LAN or stand-alone
computer systems. The DCF77N clock system receives the radio signal which is transmitted by the
DCF77 Atomic clock transmitter near Frankfurt in Germany. The time signal is based on the
vibration frequency of the caesium atom. The accuracy is about 1 second in 300.000 years. The
Elproma DCF77N clock receives this time signal and checks whether the time frame is correct or
not.
Inside the DCF77N clock a system of internal clocks ensure that the received time is the correct
time. This way erroneous received time signals can never disturb your computer time and the exact
time is guaranteed. Even after 3 days without power and not receiving the DCF signal, the accurate
time is guaranteed. From now on the accurate time is always available for your operating system and
application programs.
Special features include a low voltage alarm contact, a switched mains and relay contact output
controlled by a programmable 7 day timer and a 24V slave clock output. The Elproma DCF77N
clock has found its way in the market where exact time is essential. Amongst the many applications
you will find: time registration systems, banking, stock exchange, transportation com- panies, airlines,
research, broadcasting
DCF transmitter
The DCF 77 signal is transmitted from Mainflingen (near Frankfurt/Main),
Germany (N 50° 01'; E 09° 00'). It contains complete information about time, date and season-
related time changes. Full transmission of the DCF signal lasts 59 seconds. The frequency used by
the DCF transmitter is 77.5 kHz.
The DCF77N clock can be used in all countries having central European time.
Pack list
?? This user manual
?? Central Unit DCF77N
?? DCF Receiver with cable
?? RS232 cable (9p-Dconn male- female)
?? Utility disk
Environmental requirements
DCF77N DCF-Antenna
Ambient temp. 10°C up to 40°C -30° up to +50° Celsius
Power supply 230VAC +/- 10% 8VDC up to 12VDC
?? The device should not be placed in direct sunlight.
?? The connected computer should have a ground connection.
?? Don't use any solvent chemicals, to clean the case use a cloth dampened with water or neutral
detergent.
5


Need help? Post your question in this forum.

Forumrules


Report abuse

Libble takes abuse of its services very seriously. We're committed to dealing with such abuse according to the laws in your country of residence. When you submit a report, we'll investigate it and take the appropriate action. We'll get back to you only if we require additional details or have more information to share.

Product:

For example, Anti-Semitic content, racist content, or material that could result in a violent physical act.

For example, a credit card number, a personal identification number, or an unlisted home address. Note that email addresses and full names are not considered private information.

Forumrules

To achieve meaningful questions, we apply the following rules:

Register

Register getting emails for Elproma DCF77N at:


You will receive an email to register for one or both of the options.


Get your user manual by e-mail

Enter your email address to receive the manual of Elproma DCF77N in the language / languages: English as an attachment in your email.

The manual is 0,09 mb in size.

 

You will receive the manual in your email within minutes. If you have not received an email, then probably have entered the wrong email address or your mailbox is too full. In addition, it may be that your ISP may have a maximum size for emails to receive.

Others manual(s) of Elproma DCF77N

Elproma DCF77N User Manual - English - 2 pages

Elproma DCF77N User Manual - Dutch - 19 pages


The manual is sent by email. Check your email

If you have not received an email with the manual within fifteen minutes, it may be that you have a entered a wrong email address or that your ISP has set a maximum size to receive email that is smaller than the size of the manual.

The email address you have provided is not correct.

Please check the email address and correct it.

Your question is posted on this page

Would you like to receive an email when new answers and questions are posted? Please enter your email address.



Info