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Page 10 LSI Corporation | September 2010
LSISAS6160 SAS Switch User GuideChapter 1: Overview
| SAS Phys, Ports, and Connectors
Figure 5: Narrow and Wide SAS Ports
The SAS6160 switch has 64 phys, numbered 0 through 63. Each of the 16 SAS
connectors on the switch case (numbered 0 through 15 in this document) contains four
phys, making them wide ports.
During normal operation, the SAS connectors on the switch are cabled to SAS
connectors on initiator devices or target devices. This connection creates a wide SAS
port through which data is transmitted and received.
Phy
Phy
Phy
Phy
RX
TX
Phy
Narrow Port
Phy
Narrow Port
a. Narrow SAS Port with One Phy in Each Port
RX
TX
Phy
Wide Port
b. Wide SAS Port with Four Phys in Each Port
RX
TX
Phy
RX
TX
Phy
RX
TX
Phy
Wide Port