SMART Embedded Computing MC1600, Installation And Use Manual

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62 MC1600 Extreme Edge Server Installation and Use (6806870A02B)
System Overview
System Overview
1.8.2 SFP+ Ports
The Extreme Edge Server has five SFP+ ports on the front panel, each of which is directly
connected to the Ethernet switch. The front panel cages can accept 10GBase-SR (short
range) or 10GBase-LR (long range) SFP+ modules. Higher powered modules may require
SFP+ modules with industrial temperature limits. These ports include Synchronous
Ethernet support through the Ethernet switch. The I
2
C bus from each SFP+ is connected
to the Glue CPLD.
1.8.3 Synchronous Ethernet and IEEE 1588 Support
1.8.3.1 Synchronous Ethernet PLL
The Extreme Edge Server has a Synchronous Ethernet (SyncE) PLL device on board that
allows a recovered clock from one SFP+ port to be used as the Ethernet timing reference
for the Ethernet switch. This allows the other SFP+ ports to be synchronized to this timing
reference. The diagram below shows the SyncE clocking architecture.
TSC2 2 SGMII 1Gbps BMC
TSC2 3 10G-KR 10Gbps CPU2
Table 1-7 Ethernet Switch Port Assignments (continued)
SerDes Quad Lane Protocol Speed Destination
Figure 1-7 Synchronous Ethernet Clocking Architecture