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Meinberg Radio Clocks
Lange Wand 9
31812 Bad Pyrmont, Germany
Phone: +49 (5281) 9309-0
Fax: +49 (5281) 9309-30
http://www.meinberg.de
[email protected]
WWVB51USB: WWVB Radio Clock for the Universal Serial Bus (USB)
The WWVB51USB is a Radio Clock that receives the WWVB long wave time signal and synchronizes a PC
or laptop using a USB connection. The compact plastic housing includes an integrated antenna,an external
antenna can be connected as an option to improve reception quality in noisy environments. This device is a
perfect alternative for synchronizing computer systems where no PCI slot or serial port is available for time
synchronization.
Important note
This 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
[1]
support department for further
details.
This product has been substituted by:
[2]
Key Features
- Universal Serial Bus (USB)
- Receiver status LEDs
- Buffered hardware clock
- Powered by USB (no extra power supply required)
- Connector for an external antenna
- Plastic Case
- 2 year warranty
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Description
The WWVB51USB shows the reception quality via its status LED and uses a buffered real time clock to maintain the
time while powered off. There is no power supply required, the radio clock is powered by the Universal Serial Bus.
This USB clock offers a professional solution for your time synchronization requirements in mobile applications like field
data acquisition with a laptop/notebook. It can be deployed whenever you need to synchronize a standalone PC, laptop
or server with the WWVB time signal broadcasted by the U.S. National Institute for Standards and Technology (NIST).
The drivers package for Windows contains a time adjustment service which runs in the background and adjusts the
Windows system time continously and smoothly. A monitor program is also included which lets the user check the status
of the device and the time adjustment service, and can be used to modify configurable parameters.
The driver package for Linux contains a kernel driver which allows the board to be used as a reference time source for
the NTP daemon which is shipped with most Linux distributions. This also turns the computer into a NTP time server
which can also provide accurate time to other NTP clients on the network. Some command line tools can be used to
setup configurable parameters and monitor the status of the board.
The Meinberg Single-Driver-Concept simplifies driver installation dramatically - there is only one driver who supports all
Meinberg PCI and USB devices and if you use our API to access your Meinberg timing device from within your own
applications, you can use the same source code for both PCI and USB devices.
Characteristics
Type of receiver Integrated WWVB long wave radio receiver 60kHz (
[3]
WWVB website
)
Accuracy < +/-5 ms to UTC
Synchronization time 2-3 minutes after signal reception has been established
Physical dimensions 73mm x 117mm x 24mm (L x W x H)
Antenna connector SMB-Subminiature-coaxial-connector
Current consumption 40mA
Ambient temperature 0 ... 50°C / 32 ... 122°F
Humidity Max. 85%
Scope of supply Radio Clock, 3 m USB 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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Manual
There is no online manual available for this product:
[4]
Contact us
Links:
[1] http://www.meinberg.demailto:[email protected]
[2] http://www.meinberg.de/english/products/wvb600usb.htm
[3] http://www.meinberg.dehttp:/tf.nist.gov/stations/wwvb.htm
[4] http://www.meinberg.demailto:[email protected]
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