Silicom TimeSync Hardware Installation Guide
Page 3 of 16
1INTRODUCTION
The Silicom PE10G8TS81 TimeSync Adapter STS2 is a 1/10 Gigabit Ethernet PCI Express Gen4
TimeSync server adapter, designed for X86 Servers and high-end appliances.
The 1/10 Gigabit Ethernet TimeSync PCIe server adapter is based on the Intel E810 chipset and best in
the industry timing solution targeting 5G/Class C wireless base stations and carrier-grade systems.
The Silicom STS2 provides support to synchronize the host system from any of the eight 1G/10G ports
or from an external 1PPS or 10MHz. The STS2 TimeSync server adapter supports both 1588v2/PTP
and SyncE for high clock accuracy in PTP Master and PTP Slave modes. The design conforms with O-
RAN requirements for LLS-C1, LLS-C2 and LLS-C3 (O-RAN-WG4-CUS.0-v04.00) operation modes
with both Boundary and Transparent clocks.
The Silicom STS2 supports:
•IEEE1588v2/PTP over IPv4, IPV6, and Ethernet
•PTP profiles ITU-T G.8275.1 and ITU-T G.8275.2
•SyncE /ITU-T G.8262
•T-BC Boundary Clock and T-TSC Slave Clock / ITU-T G.8273.2
•T-GM Grand Master /G.8273.1
•PRTC Primary Reference Time Clock Class B/G.8272
•T-TC Transparent Clock /G.8273.3
•1588 Software Stack and Servo Software in x86
1.1 Purpose
This document describes the hardware installation of the Time Sync (STS2) PE10G8TS81.
1.2 Definitions
Global Navigation Satellite System: Satellite constellation that provides
positioning, navigation, and timing services on a global or regional basis.
