PCI511 : DCF77 PCI Computer Clock (PCI/PCI-X
Bus)
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The PCI511 is a DCF77 radio clock for
synchronization of computers with a PCI or
PCI-X slot. It receives the longwave radio
time signal from the DCF77 sender located
near Frankfurt/Main, Germany.
The PCI511 has been designed for the
reception of the DCF77 signal, the transfer
of the time information to a computer with
PCI (PCI-X) bus interface and the translation
of the received codes into a serial
telegram.
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.
Additional drivers packages are available
for DOS, Novell NetWare, and
OS/2. At the bottom of this page
there's a link to the download area.
The device's serial port can be used to
update the card's firmware. Additionally it
can be connected to the serial port of a
computer to use the card as reference time
source under operating systems where a serial
time string is supported, e.g. by NTP, but no
kernel device driver is available.
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Related Pages
MEINBERG: Quality Management
System 
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Key Features
- PCI LOCAL BUS interface,
3.3V or 5V, 33MHz or 66MHz,
PCI-X compatible
- Plug and play
- Pulses per second and per
minute
- RS232 interface
- Receiver status LEDs
- Buffered hardware clock
- Configurable time zone
- Driver software for all popular
operating systems
Characteristics
| Type of
receiver: |
Narrowband DCF77 quadrature
receiver with automatic gain control, bandwidth:
approx. 20Hz |
| Status
info: |
RF Signal: Indicated by
LED, antenna alignment enhanced by utility
program
Free running: Indicated by LED and utility
program
without RF signal the clock runs on quartz basis
with an accuracy of ±1·10-6 (after 24
hours of synchronous operation)
Modulation: Indicated by LED and utility
program |
| Reception
Control: |
Multiple check of received
time telegram
Plausibility control by using two complete time
telegrams |
| Pulse
outputs: |
Pulses per second
(RS232/TTL level) and per minute (TTL level),
pulse duration: 100 msec, active high |
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Interface: |
PCI LOCAL BUS (PCI), PCI-X
compatible |
| Data format PC
interface: |
Binary, byte
serial |
| Data format of
interfaces: |
Baudrate: 300, 600, 1200,
2400, 4800, 9600 baud
Framing: 7E2, 8N1, 8E1, 8N2
Output string: 32 ASCII characters with date,
time and status information |
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Statusbyte: |
Informations about free
running mode, daylight savings time and DST
pre-switch anouncement, synchronization since
last reset, GMT/UTC time and validity of the
hardware clock data |
| Electrical
connectors: |
9 pin sub D male
connector
BNC female connector |
| Computer
interface: |
33MHz- or 66MHz-PCI BUS
(PCI-X) 32 Bit/3.3V or 5V card slot |
| Backup battery
type: |
In case of supply voltage
failure the on-board RTC keeps the time based on
XTAL for more than 150 hours (buffer
capacitor)
Optional: lithium backup battery (life time: 10
years) |
| Board
type: |
PCI card short |
| Ambient
temperature: |
0 ... 50°C / 32 ...
122°F |
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Humidity: |
Max. 85% |
| Scope of
supply: |
Scope of supply includes an
active ferrite antenna AI01 and 5m of RG174 coaxial cable
with BNC connectors.
Optional: AW02 with RG58
and patch cord, other 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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