UA509: DCF77 Radio Clock


DCF77 Radio Clock UA509 with 2 serial interfaces, pulses per minute and per second, and a 2.5mm LED Display.

Key Features

Warranty Period (Years): 2 RoHS-compliant
  • Direct conversion Quadrature Receiver
  • Pulses per second and per minute
  • 20mA input/output circuits
  • 2,5mm LED-display
  • 2 RS-232 interfaces
  • Reception status indicated by LED
  • Buffered hardware clock
  • Flash-EPROM with bootstrap loader




Product Description

The hardware of UA509 is a 100mm x 160mm microprocessor board. The 20mm wide front panel contains an 8-digit LED display (2.5mm), three LED indicators and a time/date switch. The receiver is connected to the external ferrite antenna AI01 that is included in the sope of supply by the 5 meter 50 ohm coaxial cable (other lengths available). The radio controlled clock UA509 has been designed for applications where two independent serial interfaces are needed. The UA509 contains a flash EPROM with bootstrap loader that allows to upload a new firmware via the serial interface without removal of the clock.


Characteristics

Receiver Type Narrowband DCF77 quadrature receiver with automatic gain control, bandwidth: approx. 20Hz
Status Indicators Modulation and field strength visualized by LEDs
Free running state visualized by LED after switching to free running quartz clock mode
Display 8 digit 7-segment LED display (2.5mm) for time or date (switch-selectable)
optional: 20HP (100mm) wide front panel with 10mm height 7-segment LED display
Synchronization Time 2–3 minutes, given good DCF77 reception
Accuracy free run Accuracy of the quartz base after min. 24hrs of synchronized operation: ±1·10-6
Reception Monitoring Incoming time string undergoes multiple checks
Plausibility test using two full consecutive time strings
Pulse Outputs Pulse per second (PPS) and pulse per minute (PPM). TTL level, pulse width: 200 msec
Interface Two independent serial RS232/current loop interfaces, configurable
Serial Time String Output COM0:
Baudrate: 600, 1200, 2400, 4800, 9600, 19200, 38400, 57600 baud
Framing: 7E2 or 8N1 (others on request)
2 active and 2 passive 20mA current loop outputs
1 active/passive 20mA current loop input
COM1:
Baudrate: 600, 1200, 2400, 4800, 9600, 19200, 38400, 57600 baud
Framing: 7E2 or 8N1 (others on request)
1 active and 1 passive 20mA current loop output
1 active/passive 20mA current loop input
Output string: 32 ASCII characters with date, time and status information
Dimensions of the front panel 4HP/3U (20mm x 128mm)
Electrical Connectors 64-pin rear VG edge connector DIN 41612
SMB male connector
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 +5V DC
Current Draw approx. 250mA
Board type Eurocard
Board Dimensions 160 mm x 100 mm, 1,5 mm Epoxy
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
Contents of Shipment 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 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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