Installation procedures
6
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3.
Technical hardware description
3.1
Product Information
With the CLOCK77 we developed a new product for the PC which can be attached easily to
every computer and provides the atomic exact time-of-day. The deviation is approx. one
second in 300,000 years.
The data from the receiver of the CLOCK77 is processed by a Windows
XP/2000/NT/ME/98/95 background task. There is also a DOS-TSR (Terminate and Stay
Resistant) background program for Windows 3.1x and Dos which processes data from the
CLOCK77 (except the CLOCK77/USB which depends on support of USB through the
Operating System).
After the complete clock code is received, the software adjusts the PC clock to the received
atomic exact time and date value. This means that in the future, the user can ignore the
often reoccurring and disturbing deviations of the PC clock completely. Once connected with
the PC and installed, even the annoying conversion of summer to winter time belongs to the
past. Thanks to the signals from the German Mainflingen, CLOCK77 accomplishes this
function independently.
The receiver module is delivered with one lead, approx. 5m, and a D-SUB plug connector or
USB-connector. All necessary signals and power supply for the module are supplied by the
interface.
The cable of the CLOCK77/PCI + CLOCK77/ISA of receiver can be extended on up to 20m.
For distances more largely we offer an additional CLOCK AMPLIFIER, with which you can
attach the receiver up to 100m far away from the CLOCK77 to 20m.
CLOCK77 is available in three versions: CLOCK77/USB, CLOCK77/PCI and
CLOCK77/ISA. The modules are attached to the PC-Interface-board or to the
USB-connector. All CLOCK77-systems are delivered with driver-support for Windows XP /
2000 / NT / ME / 98 / 95 and DOS / Windows 3.x. For all other Operating systems a sample
