DCF77 PCI Slot Card PCI509

PCI509
DCF77 Computer Clock (PCI Bus)

DCF77 radio clock for synchronization of computers and networks

The board PCI509 has been designed for the reception of the DCF77 signal, the transfer of the time information to a computer with PCI 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.

End of Life Announcement

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 support department for further details.

This product has been substituted by: PCI511

Key Features
DCF77 Computer Clock (PCI Bus)

PCI LOCAL BUS interface

Plug and play

Pulses per second and per minute

Periodic interrupts

RS232 interface

Receiver status LEDs

Buffered hardware clock

Configurable time zone

Driver software for all popular operating systems

Characteristics
DCF77 Computer Clock (PCI Bus)

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

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

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-PCI bus 32 bit/5V 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

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

Options:

Second RS232 interface via additional bracket

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PCI509 DCF77 Computer Clock (PCI Bus)

End of Life Announcement

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Key FeaturesDCF77 Computer Clock (PCI Bus)

CharacteristicsDCF77 Computer Clock (PCI Bus)

DownloadsDCF77 Computer Clock (PCI Bus)

PCI509
DCF77 Computer Clock (PCI Bus)

Key Features
DCF77 Computer Clock (PCI Bus)

Characteristics
DCF77 Computer Clock (PCI Bus)

Downloads
DCF77 Computer Clock (PCI Bus)