Clock Mode: PTP has two ways to transmit the initial T1 timestamp of the Sync
packet transmission from the Master to the Slave:
One-Step Master: The Sync packet is timestamped, then the timestamp is
inserted into the Sync packet in real-time, as it is transmitted.
Two-Step Master: The Sync packet is timestamped, but the timestamp value
in the Sync packet is ignored. The actual T1 value is transmitted in a "Follow-
Up" packet after the Sync packet.
Note: PTP Masters must select one mode or the other to oper-
ate in. The default mode is one-step.
Enable DHCP: This is a checkbox to enable or disable the delivery of IP addresses
from a DHCP Server. The default setting is enabled (the box is checked).
Static IP Address: When a DHCP server is not requested or is requested but not
available, the PTP Module will use this IP address. In the format “#.#.#.#” with no
leading zeroes or spaces, where each ‘#’ is a decimal integer from the range [0,255].
Network Mask: When a DHCP server is not requested or is requested but not avail-
able, the PTP Module will use this Network Mask. In the format “#.#.#.#” with no
leading zeroes or spaces, where each ‘#’ is a decimal integer from the range [0,255].
Default Gateway: When a DHCP server is not requested or is requested but not
available, the PTP Module will use this Default Gateway. In the format “#.#.#.#” with
no leading zeroes or spaces, where each ‘#’ is a decimal integer from the range
[0,255].
Contract tab settings
Note: The settings under this tab only apply to Unicast mode.
[Default settings in parenthesis]
Min Sync Interval: The minimum value of Sync interval granted by the Master
Clock. In packets per second. [128 Per Second]
Max Sync Duration: The maximum value of Sync interval granted by the Master
Clock. In seconds. [10000]
SecureSync 2400 User Manual 465
APPENDIX
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