Lenovo RackSwitch G8264CS Ürün Kılavuzu - Sayfa 4

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220 meters by using 62.5 µ multi-mode fiber and up to 550 meters with 50 µ multi-mode fiber, or the

1000BASE-LX transceivers that support distances up to 10 kilometers using single-mode fiber (1310 nm).

For 10 GbE links, clients can use direct-attached copper (DAC) SFP+ cables for in-rack cabling and distances

up to 7 m. These DAC cables have SFP+ connectors on each end, and they do not need separate

transceivers. For longer distances, the 10GBASE-SR transceiver can support distances up to 300 meters over

OM3 multimode fiber or up to 400 meters over OM4 multimode fiber with LC connectors. The 10GBASE-LR

transceivers can support distances up to 10 kilometers on single mode fiber with LC connectors. For

extended distances, the 10GBASE-ER transceivers can support distances up to 40 kilometers on single mode

fiber with LC connectors.

To increase the number of available 10 GbE ports, clients can split out four 10 GbE ports for each 40 GbE port

using QSFP+ DAC Breakout Cables for distances up to 5 meters. For distances up to 100 m, optical MTP-to-

LC break-out cables can be used with the 40GBASE-SR4 transceiver, but Lenovo does not supply these

optical breakout cables.

For 40 GbE to 40 GbE connectivity, clients can use the affordable QSFP+ to QSFP+ DAC cables for distances

up to 7 meters. For distances up to 100 m, the 40GBASE-SR4 QSFP+ transceiver can be used with OM3

multimode fiber with MTP connectors or up to 150 m when using OM4 multimode fiber with MTP connectors.

For distances up to 10 km, the 40GBASE-LR QSFP+ transceiver can be used with single mode fiber with LC

connectors.

For 8 Gb or 4 Gb FC links (supported on Omni Ports only), you can use 8 Gb FC SFP+ SW optical transceivers

plus LC fiber optics cables for distances up to 150 m with 50 µ multi-mode fiber or up to 21 m with 62.5 µ

multi-mode fiber. For longer distances, the 8 Gb FC LW optical transceivers can support up to 10 km on

single-mode fiber with LC connectors. These transceivers can operate at 4 Gb or 8 Gb speeds.

Table 3 lists the supported cables and transceivers.

Table 3. Supported transceivers and direct-attach cables

RackSwitch G8264CS