WEMPE digital main clock 20097
Operation
V3.0 01/2011
31
1.1.2 Setting of baud rate
1. Refer to the documentation of the GPS receiver for the data to be set.
2. Remove write protection (
1.1.1).
3. Press the key
1
several times until
the message on the right appears on
the display:
4. Press the
ENTER
key for confirmation. The cursor starts flashing.
5. Press the key
3
to set the baud rate.
6. Press the key
4
to modify the number of stop bits.
7. Press the
ENTER
key to confirm the modification.
To cancel the modification, press the
MENUE
key twice.
8. Press the
MENUE
key to return to the time display.
1.1.3 Synchronisation of the clock with GPS signal
The PPS signal of the GPS receiver is necessary for the exact synchronisation of the main
clock.
Additionally, a synchronisation without PPS impulse (NO PPS) can be activated for NMEA
receivers.
1. Remove write protection (
1.1.1).
2. Press key
1
several times until the
message on the right appears on the
display:
3. Press
ENTER
key for confirmation. The cursor starts flashing.
4. Press the key
2
to select whether the data is to be adopted with the positive flank
(Pos.) or with the negative (Neg.) flank depending on the GPS receiver.
5. Press the
ENTER
key to confirm the modification.
To cancel the modifications, press the
MENUE
key twice.
6. Press the
MENUE
key to return to the time display.
NOTICE!
After having finished the settings, the main clock automatically adopts the UTC and
date. The LTC has possibly to be set by hand.
NOTICE!
In case the receiver signal is interrupted, the main clock keeps running with a high
accuracy thanks to its internal oscillator.
