Vers. No. 6.1
124 Released: 25/04/2017
5 Configuration → Q.gate and Q.pac settings
1. Synchronization of several Q.pac Test Controllers through
one sync line
Connect the sync connections of the Test Controller through
synchronization lines (plug-in terminal 2, connections 9 and
10; refer to Section 4.4.2, page 32). For this purpose use a
screened cable with twisted cores if possible. One (any) con-
troller becomes the master; on this controller set Settings >
Synchronization > Sync. protocol settings to None. Fo
r
the other Test Controllers specify Q.sync over RS485 as the
setting in the same dialog.
The maximum length of all synchronization lines together is
1000 m.
2.
Synchronization of a Q.pac Test Cont
roller through a radio
receiver for time signals
Connect the receiver either via the digital IOs or via RS-485;
refe
r to Section 4.5.1, page 41. Depending on the connection
and output signal, specify AFNO
R via IOs, AFNOR via
RS485, IRIG B003/B005 via IOs or IRIG B003/B005 via
RS485 for Settings > Synchronization > Sync. protocol
settings. The maximum length of the lines for connection via
IOs is 3 m.
3. Synchronization of a Q.gate or Q.pac Te
st Controller through
a GPS receiver
Connect the GPS receiver with the RS-232 interface of the
Test Cont
roller and specify NMEA-0183 for Host interface
> RS 232 > Protocol.
4. Synchronization of a Q.gate or Q.pac Te
st Controller through
SNTP
Make sure that the Test Controller
can access a time server in
the Ethernet network. Specify On for Host interface >
SNTP > SNTP mode as well as the Server address (IP
address of the time server).
All other variants are combinations of theses four methods:
1. Synchronization of several Q.pac Te
st Controllers through
one sync line; the master controller can be synchronized
through radio receiver for time signals, a GPS receiver or
SNTP.
Set the master up as described above (Settings > Synchro
-
nization > Sync. protocol settings remai
ns on None). On
the slave controllers specify Q.sync over RS485 for Settings
> Synchronization > Sync. protocol settings. With a radio
receiver for time signals in this case only the digital IOs can
be used for the input.
2. Synchronization of several Q.pac Te
st Controllers through a
radio receiver for time signals (without sync line)
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