Spectracom SecureSync User Manual

Local Clocks panel
You can create multiple different Local Clocks, as needed. The names of all Local Clocks that
have already been created are displayed in the Local Clocks panel.
See also "Local Clock(s), DST" on page158.
3.2 System Time
The time that SecureSync maintains is referred to as the System Time. The SystemTime is used to
supply time to all of the available time-of-day outputs (such as the front panel LED display, NTP
time stamps, time stamps in the log entries, ASCII data outputs, etc.).
By default, the SystemTime is synchronized to SecureSync’s input references (such as GNSS,
IRIG, ASCII data, NTP, PTP, etc.).
If a UTC-based time is not required, however, it is also possible to manually set the System Time
to a desired time/date, or to use the unit's battery backed time (Real Time Clock) as System
Time (with an external 1PPS reference).
The flow chart below illustrates how SecureSync obtains the highest available and valid ref-
erence, depending on whether an external source is chosen as reference, or an internal (User
[x], or Local System).
Figure 3-1: How the System Time is derived
Note: User hand-set times can only be set in UTC (not Local time).
3.2 System Time
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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)