H3C S5120-SI系列以太網(wǎng)交換機是H3C技術有限公司自主開發(fā)的全千兆以太網(wǎng)交換機，廣泛應用于企業(yè)網(wǎng)和園區(qū)網(wǎng)的接入層。提供靈活的全千兆以太網(wǎng)端口的接入密度、豐富的業(yè)務特性，并支持創(chuàng)新的IRF（Intelligent Resilient Framework，智能彈性架構）技術，用戶可以將多臺S5120SI交換機連接形成一個邏輯上的獨立實體，從而為用戶構建高性能、易管理、易擴展、低成本的千兆到桌面的解決方案，是千兆接入的理想選擇。

H3C S5120-SI系列以太網(wǎng)交換機目前包含如下型號：

S5120-9P-SI：8個10/100/1000Base-T以太網(wǎng)端口，1個1000Base-X SFP千兆以太網(wǎng)端口；

S5120-20P-SI：16個10/100/1000Base-T以太網(wǎng)端口，4個1000Base-X SFP千兆以太網(wǎng)端口；

S5120-28P-SI：24個10/100/1000Base-T以太網(wǎng)端口，4個1000Base-X SFP千兆以太網(wǎng)端口；

S5120-52P-SI：48個10/100/1000Base-T以太網(wǎng)端口，4個1000Base-X SFP千兆以太網(wǎng)端口；

S5120-9P-PWR-SI：8個10/100/1000Base-T以太網(wǎng)端口，1個1000Base-X SFP千兆以太網(wǎng)端口；

S5120-9P-HPWR-SI：8個10/100/1000Base-T以太網(wǎng)端口，1個1000Base-X SFP千兆以太網(wǎng)端口；

S5120-28P-PWR-SI：24個10/100/1000Base-T以太網(wǎng)端口（PoE+），4個1000Base-X SFP千兆以太網(wǎng)端口；

S5120-28P-HPWR-SI：24個10/100/1000Base-T以太網(wǎng)端口（PoE+），4個1000Base-X SFP千兆以太網(wǎng)端口

H3C S5120-SI系列以太網(wǎng)交換機訂購信息如下：

H3C S5120-SI 以太網(wǎng)交換機 主設備
LS-5120-20P-SI-H3	H3C S5120-20P-SI,L2以太網(wǎng)交換機主機,16個10/100/1000BASE-T,4個 SFP,支持AC110/220V
LS-5120-28P-SI-H3	H3C S5120-28P-SI,L2以太網(wǎng)交換機主機,24個10/100/1000BASE-T,4個 SFP,支持AC110/220V
LS-5120-52P-SI-H3	H3C S5120-52P-SI,L2以太網(wǎng)交換機主機,48個10/100/1000BASE-T,4個 SFP,支持AC110/220V
LS-5120-28P-PWR-SI-H3	H3C S5120-28P-PWR-SI,L2以太網(wǎng)交換機主機,24個10/100/1000BASE-T,4個SFP,支持AC110/220V,POE
LS-5120-28P-HPWR-SI-H3	H3C S5120-28P-HPWR-SI,L2以太網(wǎng)交換機主機,24個10/100/1000BASE-T,4個SFP,支持AC/DC,POE
LS-5120-28P-LI	H3C S5120-28P-LI,L2以太網(wǎng)交換機主機,24個10/100/1000BASE-T,4個1000BASE-X,支持AC110/220V
LS-5120-52P-LI	H3C S5120-52P-LI,L2以太網(wǎng)交換機主機,48個10/100/1000BASE-T,4個1000BASE-X,支持AC 110/220V
LS-5120-9P-SI-H3	H3C S5120-9P-SI,L2以太網(wǎng)交換機主機,8個10/100/1000BASE-T,1個SFP,支持AC110/220V
LS-5120-9P-HPWR-SI-H3	H3C S5120-9P-HPWR-SI,L2以太網(wǎng)交換機主機,8個10/100/1000BASE-T,1個SFP,支持AC110/220V,POE
LS-5120-9P-PWR-SI-H3	H3C S5120-9P-PWR-SI,L2以太網(wǎng)交換機主機,8個10/100/1000BASE-T,1個SFP,支持AC110/220V,POE
H3C S5120-SI 以太網(wǎng)交換機 光模塊
SFP-GE-LH40-SM1310	光模塊-SFP-GE-單模模塊-(1310nm,40km,LC)
SFP-GE-LH40-SM1550	光模塊-SFP-GE-單模模塊-(1550nm,40km,LC)
SFP-GE-LH70-SM1550	光模塊-SFP-GE-單模模塊-(1550nm,70km,LC)
SFP-GE-SX-MM850-A	光模塊-SFP-GE-多模模塊-(850nm,0.55km,LC)
SFP-GE-LX-SM1310-A	光模塊-SFP-GE-單模模塊-(1310nm,10km,LC)
SFP-STACK-Kit	SFP堆疊電纜-（150cm，含堆疊模塊）
H3C S5120-SI 以太網(wǎng)交換機 安裝附件
LS5-FL-B	安裝彎角組件