Framing, Time zone, Output mode – Meinberg DCF77 UA509 User Manual
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Framing
Lever 4 of the DIL switches is used to select the framing of the serial ports. Changes in
these settings become valid after reset. Other framings on request.
SWx-4
Framing
off
7E2
on
8N1
Time Zone
Levers 7 and 8 of the DIL switches let the user select a time zone (MEZ/MESZ, UTC,
MEZ) for each channel. The front panel display always shows the time zone selected
for COM0.
SWx-7
SWx-8
Time Zone
off
off
MEZ/MESZ = CET/CEST
off
on
always MEZ=CET
on
off
UTC
on
on
(reserved)
Output mode
Both of the serial ports send a time string in three different output modes.
SWx-5
SWx-6
String Mode
off
off
on request only
on
off
once per second
off
on
once per minute
on
on
(reserved)
1. on request only:
output of the time string starts 2ms after sending a
"
?
" (ASCII-Code 3Fh) to the clock
2. once per second:
output of the time string starts whenever a new
second begins
3. once per minute:
output of the time string starts whenever a new
minute begins