Meinberg DCF77C51 User Manual

DCF77C51Technical InformationOperating InstructionsFUNKUHREN

10FramingLevers 4 and 5 of the DIL switch are used to select the framing type of the serial port:SW-4 SW-5 Framingon on 7E1off on 7E2 *on off 8N1off o

11DIL-SwitchesSW1-SW3 Baudrate 600/1200/2400/4800/9600/19200SW4 - SW5 Framing 7E1 / 7E2 / 8N1 /8N2SW6 - SW7 Output Mode per second / per minute / on r

12Technical SpecificationsRECEIVER: Synchronous demodulator with automatic gain controlbandwidth: approx. 50HzANTENNA: Active external ferrite antenna

13TIME ZONE: MEZ/MESZ=CET/CEST, or UTCOUTPUTSTRING: see "Format of the Meinberg Standard Time String"SERIAL LINEDRIVERS: Output: RS-232 and

14Format of the Meinberg Standard Time StringThe Meinberg Standard Time String is a sequence of 32 ASCII characters starting withthe STX (start-of-tex

15ConnectorsName Type Signal CableSerial Interface 25 pin SUB-D RS232 shielded data line20mAPulse Outputs pulse per secondpulse per minuteAntenna BNC

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17Component Layout

18Usage of the Current Loop InterfaceThe current loop interface can be wired to work in one of two modes: active outputdrives passive input, or passiv

19Passive Output to Active InputIf a current loop output shall be wired to operate as passive output, the input wust bewired to operate as active inpu

Werner MeinbergAuf der Landwehr 22D-31812 Bad PyrmontTelefon: ++49 52 81 - 9309-0Telefax: ++49 52 81 - 9309-30Internet : http://www.meinberg.deE-M

Table of ContentsGeneral Information about DCF77... 5DCF77C51 ...

5General Information about DCF77The radio remote clocks made by Meinberg receive the signal from the long wavetransmitter DCF77. This long wave transm

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7DCF77C51The radio remote clock DCF77C51 has been designed for applications where only theserial interface is used to transmit information on date and

8InstallationThe radio remote clock has a built in AC power supply. After the power cable has beenconnected, a green LED labeled Netz indicates that t

9Serial PortThe asynchronous serial port can be configured by a DIL switch located inside theclock's case. When the clock is beeing shipped, the