Meinberg DCF77 UA509 - Manual (Page 6)

6
Features of the AM Radio Clock DCF77 UA509
The hardware of UA509 is a 100mm x 160mm microprocessor board. The 20mm
wide front panel contains an 8-digit LED display, three LED indicators and a time/
date switch. The receiver is connected to the external ferrite antenna by a 50 ohm
coaxial cable with length up to 100m. When using a cable with length of more than
100m an antenna amplifier should be used.
The radio remote clock UA509 has been designed for applications where two
independent serial interfaces are needed. The rear connector pin assignment is compa-
tible with the former clocks DCF77 UA31 and UA537 to replace this clocks in the
future. The UA509 contains a new flash EPROM with bootstrap loader that allows to
upload a new firmware via the serial interface without removal of the clock.
Frontview UA509