Spectracom SecureSync User Manual

3.
In the Network Services panel, enable System Time Message.
2.13.9.1 System Time Message Format
This message contains the time when the next 1PPS discrete will occur. It is sent once per second
prior to the 1PPS discrete.
Table 2-4:
System Time Message format
Word Byte 3 Byte 2 Byte 1 Byte 0
1 Msg ID
2 Msg Size
3 Seconds
4 nSec
5 EOM
Table 2-5:
System Time Message field descriptions
Data
Name
Data Description Range Resolution Units
Message
ID
UID of the message; programmable Unsigned 32 bit
integer
1 n/a
Message
Size
Total message size in bytes Unsigned 32 bit
integer
1 Bytes
Seconds Seconds since epoch (00:00:00 Jan 1,
1970 UTC)
Unsigned 32 bit
integer
1 Seconds
NSec NSec within the current second Unsigned 32 bit
integer
1 nsec
EOM End-of-message -1 1 n/a
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CHAPTER 2 • SecureSync User Reference Guide Rev. 26
2.13 Configuring Network Settings

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)