3.8 PTP Settings Page
3.8.1 PTP Update Method One/Two Step
This setting controls the Sync packet generation mode of the TM2000B. Default normal operation is to
use 1 Step. In this mode, a single Sync packet is generated at the requested/setup rate and HW time
stamping is applied to the packet just before it goes onto the Ethernet wire. In the two step mode, two
Sync packets are generated, without hardware time stamping, to allow the receiver to determine the
accuracy. If at all possible, One Step mode is preferred as it is simply more accurate. Two step is the
lower accuracy option, but it included as a setup option now to allow flexibility of use.
Installation and Operations Manual | Page 15
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