C28COM : DCF77 radio clock module
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For connection via RS232 interface of
computers
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End of Life AnnouncementThis product
is not available anymore and may have been
substituted by another product. Of course we
continue to support existing units still in
use. Please contact our support
department for further details.
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Related Pages
MEINBERG: Quality Management
System 
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Key Features
- Straight receiver with automatic gain
control
- RS232 time telegram
- Bicolor LED for indication of time
marks and status
- Integrated
microcontroller
- Integrated antenna
- Power supply via computer RS-232
interface
Description
The radio clock C28COM was designed for operation in
combination with RS232 interfaces. Besides the
antenna and the DCF77 receiver, the module includes a
microcontroller for decoding the DCF77 telegram.
C28COM provides a Meinberg Standard Telegram that
includes information on date, time and status of the
clock via it's transmission line. An integrated
bicolor LED signals the synchronous state of the
clock and the demodulated time marks. C28COM is
powered by control lines of the RS232 interface, an
external power supply is not necessary.
Characteristics
| Type of
receiver: |
Narrowband straight
receiver with automatic gain control, Bandwidth:
approx. 40Hz |
| Type of
antenna: |
Built-in ferrite
antenna |
|
Display: |
Bicolor LED for indication
of synchronous state of the clock and the
demodulated time marks |
| Reception
Control: |
DCF77 decoding and
plausibility check by integrated
microcontroller |
|
Interface: |
Single serial RS232
interface |
| Data format of
interfaces: |
Baudrate: 9600 baud, data
format: 7E2
Serial Meinberg
Standard Telegram including information
regarding time, date and status of the clock |
| Physical
dimensions: |
60mm x 50mm x 20mm (length
x width x height) |
| Electrical
connectors: |
Modem-cable (length 2
meters) for direct connection to a computer
RS-232
Female ninepole SUB-MIN-D-connector |
| Power
supply: |
Via control lines of a
computer RS-232-interface, no external power
supply required |
| Form
Factor: |
Unbreakable plastic
case |
| Ambient
temperature: |
0 ... 50°C / 32 ...
122°F |
|
Humidity: |
Max. 85% |
| Scope of
supply: |
Stick pad for mounting the
case (e.g. on windows/furniture) |
|
Options: |
Driver software for
Windows95/98®, Windows ME®, Windows
XP®, Windows 2000®, Windows NT®
and Novell
case sealed with silicon (IP53)
female 25-pole SUB-MIN-D connector
different length of cable |
| RoHS-Status of the
product: |
This product is fully RoHS
compliant |
| WEEE status of the
product: |
This product is handled as
a B2B category product. In order to secure a WEEE
compliant waste disposal it has to be returned to
the manufacturer. Any transportation expenses for
returning this product (at its end of life) have
to be incurred by the end user, whereas Meinberg
will bear the costs for the waste disposal
itself. |
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Downloads
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Please note that only the most recent manual
version is available for download. This manual
therefore may not be suitable for all product
versions.
- For drivers, SDKs, tools and utilities, please
check our Download
area
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