Spectracom SecureSync User Manual

Note that the System Time affects not only NTP output, but also all other aspects of time man-
agement e.g., time distributed via channels other than NTP, logging, and time displayed on the
unit front panel and in the Web UI.
If SecureSync is operated as a Stratum2 server, i.e. as a client to a Stratum1 server (see "Con-
figuring "NTP Stratum Synchronization"" on page103 ), the other server will override
SecureSync's System Timescale, should it be different.
Note: IMPORTANT: Make sure you select your desired timescale! Using the wrong
timescale will inevitably result in an undesired time error in your NTP clients.
To change the system timescale SecureSync will use for its NTP output (and other outputs):
1.
Navigate to MANAGEMENT > OTHER: Time Management:
2.
In the System Time panel, click the GEAR icon.
3.
In the Edit System Time window, select the System Timescale SecureSync will be in:
UTC: The network PCs will receive UTC time via NTP.
TAI: The network PCs will receive TAI time via NTP.
GPS: The network PCs will receive GPS time via NTP.
Note: When the Timescale is set to “GPS”, the GPS to UTC Offset
must be set correctly. As of May 2018, the offset between UTC and
GPS is 18 seconds.
2.14 Configuring NTP
CHAPTER 2 • SecureSync User Reference Guide Rev. 26
101

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)