Baumer GenICam Camera Features | 11
V1.2 | VCXG.2 / VCXG.2.XC / VCXG.2.I / VCXU.2 Operating Manual 209
Network Topology without GPS Glock
Achieving PTP synchronization between multiple cameras requires all cameras to be on the
same network/subnet. The IEEE 1588 best master clock algorithm will select a camera as the
master clock. Each camera will synchronize to this master clock.
This restriction is due to the current inability of any network card hardware to forward PTP sync
multicast packets between ports within the 1 μs requirement.
Network Topology with GPS Clock
The cameras can be synchronized to a GPS timer, allowing “real world time” synchronization.
Configure PtpMode on all of the cameras to Slave or Auto. In Auto, the IEEE 1588 best master
clock algorithm will elect the GPS clock as the master. Each camera will synchronize to the
GPS master clock.
INFO
To ensure a reliable synchronization, the GPS master clock must be configured with a Sync in-
terval between 0.5 s and 2 s (according to the Default PTP profile for use with the delay re-
quest-response mechanism).