Meinberg SHSPZF LANTIME User Manual
Page 117
Technical specifications PZF5xx
RECEIVER:
Preamplifier with two post-connected receiver channels for best
aquisition and tracking of the DCF-signals.
CONTROL OF
RECEPTION:
The DCF-signal is checked for minimum field strength by
microprocessor. The result is indicated by LED.
In addition, the value of the digitized field strength is displayed
in menu 'FIELD'.
BATTERY-
BACKUP:
In case of power failure an internal realtime clock runs crystal-
precise. Important parameters are stored in the system-RAM.
Life time of lithium battery: 10 years minimum
Option: capacitance-backup for about 150 hours
INTERFACES:
Two independant asynchronous serial ports (internal RS232)
PULSE
OUTPUTS:
Active-high and active-low pulses per minute and per second,
TTL-level, pulse duration 200 ms
ACCURACY
OF PULSES:
Time delay of two systems PZF5xx with a maximum distance of
50 km: typ. 20 µs, max. 50 µs
Time shifting of successive pulses: max. 1.5 µs
PROPAGATION-
TIME
COMPENSATION: The signal delay is compensated if the distance of the receiver to
the transmitter is given.
STANDARD
FREQUENCIES:
10 MHz are synchronized to DCF by a digital PLL.
Accuracy in synchronized state: +/- 5·10-9 (short term stability)
Accuracy in unsynchronized state: 1·10-8 for one hour
77.5 kHz, 155 kHz und 310 kHz derived from receiver-PLL
Accuracy in synchronous state: +/- 5·10-7 (short term stability)
TERMINAL
CONNECTION:
Blade-connector strip VG64, DIN 41612
Sub-miniatur coaxial HF-connector (SMB internal)
BOARD
DIMENSIONS:
Eurocard size 100 mm x 160 mm, Epoxy 1,5 mm
Front panel 12TE (61 mm)
ANTENNA:
Ferrite antenna in plastic housing
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