PTP IEEE 1588
Precision Time Protocol (PTP), defined by IEEE 1588, is a network-based protocol designed to synchronize clocks with nanosecond accuracy across devices in a distributed network. It achieves this high precision by exchanging timestamped messages between a grandmaster clock and PTP clients, often using hardware timestamping techniques to minimize latency and jitter.
Usage
The E9 system uses PTPv2 over Ethernet and supports default profiles. It can function as either a Grandmaster clock or an Ordinary clock (PTP Client). When PTP is enabled, the E9 automatically discovers and joins the PTP network, using the Best Master Clock (BMC) selection algorithm to determine its role, and then synchronizes time precisely with all other nodes.
It is possible to establish a PTP network between just E9 cameras
Standard Documentation
The latest PTPv2 standard published in July 2008 can be found here.