As a baseline, the SYNC signal of an AM6442 starter kit connected to Keysight NovusONE as the grand leader with distributed clock was measured to match the reference shown in Figure 2-5.

With TSN, time synchronization is achieved using IEEE 802.1AS, often referred to as generalized precision time protocol (gPTP). Figure 4-1 shows the synchronization accuracy of the AM6442 starter kit. A jitter of -9 to +12 nanoseconds measured at 1 Gbit/s is better than what is measured on a network running at 100 Mbit/s.

Figure 4-1 IEEE 802.1AS Accuracy AM6442 Starter Kit Measured on Keysight NovusONE as the Grand Leader Using 1 Gbit/s Ethernet