Computer Radio Clock PC32 (ISA Bus)

PC32
DCF77 Computer Radio Clock (ISA bus)

DCF77 Slot Card PC32

DCF77 slot card PC32 with ISA bus interface, periodic interrupts and RS232 interface.

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

Characteristics
DCF77 Computer Radio Clock (ISA bus)

Type of receiver:

Narrowband synchronous receiver with automatic gain control, Bandwidth: approx. 40Hz

Type of antenna:

DCF77 indoor antenna AI01

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 XTAL with an accuracy of ±1·10-6 (after 24 hours of synchronous operation)
Modulation: Indicated by LED and utility program

Accuracy free run:

Accuracy of the quartz base after min. 24hrs of synchronized operation: ±1·10^-6

Reception Control:

Multiple check of received time telegram
Plausibility control by using two complete time telegrams

Interface:

Single serial RS232 interface

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:

IBM PC/XT/AT-Bus

Power supply:

+5V DC

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)

Current consumption:

ca. 80mA

Board type:

8 bit short expansion board

Ambient temperature:

0 ... 50°C / 32 ... 122°F

Humidity:

Max. 85%

Options:

Pulse per second and pulse per minute (TTL level)

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PC32
DCF77 Computer Radio Clock (ISA bus)

End of Life Announcement

Key Features
DCF77 Computer Radio Clock (ISA bus)

Characteristics
DCF77 Computer Radio Clock (ISA bus)

Downloads
DCF77 Computer Radio Clock (ISA bus)

PC32 DCF77 Computer Radio Clock (ISA bus)

End of Life Announcement

MEINBERG: Quality Management System

Key FeaturesDCF77 Computer Radio Clock (ISA bus)

CharacteristicsDCF77 Computer Radio Clock (ISA bus)

DownloadsDCF77 Computer Radio Clock (ISA bus)

PC32
DCF77 Computer Radio Clock (ISA bus)

Key Features
DCF77 Computer Radio Clock (ISA bus)

Characteristics
DCF77 Computer Radio Clock (ISA bus)

Downloads
DCF77 Computer Radio Clock (ISA bus)