Spectracom SecureSync User Manual

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 operate 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 avail-
able, the PTP Module will use this IP address. In the format “#.#.#.#” with no leading zer-
oes 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 available,
the PTP Module will use this Network Mask. In the format “#.#.#.#” with no leading zer-
oes 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 avail-
able, the PTP Module will use this Default Gateway. In the format “#.#.#.#” with no lead-
ing 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]
Min Announce Interval: The minimum value of the Announce interval granted by the
Master Clock. In packets per second. [128 Per Second
Max Announce Duration: The maximum value of the Announce interval granted by the
Master Clock. In seconds. [10000]
Min Delay_Req Interval: In packets per second. [128 Per Second]
SecureSync User Reference Guide 473
APPENDIX

Spectracom SecureSync Specifications

General

Model	SecureSync
Time Reference	GPS, GLONASS, BeiDou, Galileo, IRIG, NTP, PTP, 1PPS
Disciplines	GNSS, IRIG, PTP, NTP, SyncE
Inputs	GPS, GLONASS, BeiDou, Galileo, IRIG, NTP, PTP, 1PPS
Outputs	NTP, PTP, 1PPS, IRIG
Protocols	PTP, NTP, SNMP, SSH, HTTPS
Form Factor	1U Rack-mount
Redundancy	Optional redundant power supply
Security Features	Password protection, access control lists, SSH, HTTPS, SNMPv3, NTP authentication, PTP authentication
Power Supply	100-240 VAC, 50-60 Hz
Operating Temperature	0°C to +50°C
Dimensions	44.45 mm (H) x 482.6 mm (W)