Supported Time Synchronization Sources - Siemens RUGGEDCOM RSG2288 Installation Manual

Chapter 1
Introduction
Figure 2: PTP Module
1. AM OUT Port 2. TTL OUT Port
For more information about the BNC ports, refer to
The following sections describe the PTP support in more detail:
• Section 1.3.1, "Supported Time Synchronization Sources"
• Section 1.3.2, "AM and TTL Outputs"
• Section 1.3.3, "IEEE 1588 Support"
Section 1.3.1

Supported Time Synchronization Sources

The following time synchronization sources are supported by the RUGGEDCOM RSG2288, with or without the
PTP card:
Synchronization Source
NTP
IEEE 1588 v2
IRIG-B PWM
GPS
NTP
NTP (Network Time Protocol) is the standard for synchronizing the clocks of computer systems throughout the
Internet and is suitable for systems that require accuracies in the order of 1 ms.
IRIG-B PWM
IRIG-B time synchronization is an even older, established, inter-device time synchronization mechanism providing
accuracy in sub-milliseconds.
GPS
The Global Positioning System (GPS), as a source of accurate time, requires an external GPS antenna input to
provide accurate time signals comparable to 500 ns. The RUGGEDCOM RSG2288 can use the GPS receiver on
the PTP module to provide the time base for the system.
4
1 2
3. TTL IN Port 4. GPS IN Port
Section 3.5, "BNC
Without PTP Card
3 4
Ports".
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Supported Time Synchronization Sources
RUGGEDCOM RSG2288
Installation Guide
With PTP Card
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