Gantner Q Series Manual page 98

Configuration → Q.gate and Q.pac settings
5
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The maximum length of all synchronization lines together is
1000 m.
2. Synchronization of a Q.pac Test Controller through a radio
receiver for time signals
Connect the receiver either via the digital IOs or via RS-485;
refer to Section 4.5.1, Page 38. Depending on the connection
and the output signal, specify AFNOR over IOs, AFNOR
over RS485, IRIG B003/B005 over IOs or IRIG B003/
B005 over RS485 for Settings > Synchronization > Input
synchronisation protocol. When using IOs, the maximum
length of all synchronization lines together is 3 m.
3. Synchronization of a Q.gate or Q.pac Test Controller through
a GPS receiver
Connect the GPS receiver with the RS-232 interface of the
Test Controller and specify NMEA-0183 for Host interface
> RS 232 > Protocol.
4. Synchronization of a Q.gate or Q.pac Test 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 methods:
1. Synchronization of several Q.pac Test Controllers through
one sync line; the master controller can be synchronized
through a GPS receiver or SNTP .
Set the master up as described above (Settings > Synchro-
nization > Input synchronisation protocol remains on
None). On the slave controllers specify Q.sync over RS485
for Settings > Synchronization > Input synchronisation
protocol. When using a radio receiver for time signals only
the digital IOs can be used in this case.
2. Synchronization of several Q.pac Test Controllers through
one radio receiver for time signals (without sync line)
Connect the time signal on all Test Controllers to the digital
IOs (plug-in terminal 2, connections 9 and 10, refer to
Section 4.4.2, Page 30). Depending on the output signal,
specify AFNOR over IOs or IRIG B003/B005 over IOs for
Settings > Synchronization > Input synchronisation
protocol on all Q.pac Test Controllers.
3. Synchronization of several Q.gate or Q.pac Test Controllers
through SNTP (without sync line)
On all Test Controllers specify On for Host interface >
SNTP > SNTP mode as well as the Server address (IP
address of the time server).
Vers. No. 4.0
Released: 5/12/2011