C51: DCF77 radio clock with RS232 interface and integrated power supply (incl. antenna and 5m cable)


Serial DCF77 radio clock with integrated power supply and free running clock in plastic housing.

Serial DCF77 radio clock with integrated power supply and free running clock in plastic housing. RS232 interface and 20mA input/output circuits. Pulse per second and pulse per minute. These pulses are made available at the DB25 connector via optocoupler outputs. The P_SEC pulse is also available with RS-232 level (-3..12V/+3..12V).

End-of-Sales Announcement

This product is no longer available. We will of course continue to provide support for units that have already been purchased and are still in use. Please contact our Sales Team for further details.

This product has been discontinued and has been replaced with: C600RS

Key Features

Warranty Period (Years): 2 RoHS-compliant
  • Integrated Power Supply
  • Pulses per second and per minute
  • 20mA input/output circuits
  • RS-232 interface
  • Reception status indicated by LED
  • Buffered hardware clock
  • DCF77 radio clock




Product Description



Characteristics

Receiver Type Narrowband tuned radio frequency receiver with automatic gain control, reception frequency: 77.5 kHz, bandwidth approx. 40 Hz
Status Indicators Modulation and field strength visualized by LEDs
Free running state visualized by LED after switching to free running quartz clock mode
Type of Antenna Scope of supply includes an active ferrite antenna AI01 and 5m of RG174 coaxial cable with BNC male connectors. Optional: AW02 with RG58, other length of cable
Reception Monitoring Incoming time string undergoes multiple checks
Plausibility test using two full consecutive time strings
Pulse Outputs Pulse per second and pulse per minute (optocoupler), pulse width: 200 msec
Interface Single serial RS-232 interface
Serial Time String Output Baudrate: 600, 1200, 2400, 4800, 9600, 19200 baud
Framing: 7E1, 7E2, 8N1, 8N2
1 active/passive 20mA current loop output (selectable)
1 active/passive 20mA current loop input (selectable)
Output string: 32 ASCII characters with date, time and status information
Electrical Connectors 25 pin sub D female connector
BNC female connector
power cord receptacle
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)
Operating Voltage 230V/50Hz
Current Draw ca. 20mA
Form Factor Rolec TBA 084, IP40 protected
Physical Dimensions 57mm x 160mm x 80mm (height x width x depth)
Supported Temperature Operational: 0 - 50 °C (32 - 122 °F)
Storage: -20 - 70 °C (-4 - 158 °F)
Supported Humidity Max. 85 % (non-condensing) at 40 °C
Options Driver software for Windows, Novell and UNIX (NTP Freeware)
RoHS Status of Product This product is fully RoHS-compliant.
WEEE Status of Product This product is handled as a B2B (Business to Business) category product. To ensure that the product is disposed of in a WEEE-compliant fashion, it can be returned to the manufacturer. Any transportation expenses for returning this product (at end-of-life) must be covered by the end user, while Meinberg will bear the costs for the waste disposal itself.


Downloads

Short Info Sheet



Manuals


Please note that only the most recent manual version is available for download. This manual therefore may not be suitable for all product versions.
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