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Table 1 lists the supported transceiver options.

Table 1.

Cisco SFP

Cisco SFP-10G-SR

Cisco SFP-10G-LR

Cisco SFP-H10GB-CU1M

Cisco SFP-H10GB-CU3M

Cisco SFP-H10GB-CU5M

Cisco GLC-T

Cisco GLC-SX-MM

Cisco GLC-LH-SM

Cisco SFP-GE-T

Cisco SFP-GE-S

Cisco-SFP-GE-L

Cisco DS-SFP-FC4G-SW

Cisco DS-SFP-FC4G-LW

The high bandwidth of 10 Gigabit Ethernet poses challenges to transmissions that are met by the transceiver and

cabling options supported by the Cisco Nexus 5000 Series.

The product family supports an innovative Twinax copper cabling solution that connects to standard SFP+

connectors for in-rack use, and optical cabling for longer cable runs (Table 2).

For in-rack or adjacent-rack cabling, the Cisco Nexus 5000 Series supports SFP+ direct-attach 10 Gigabit

●

Ethernet copper, an innovative solution that integrates transceivers with Twinax cables into an energy-

efficient, low-cost, and low-latency solution. SFP+ direct-attach 10 Gigabit Twinax copper cables use only 0.1

watt (W) of power per transceiver and introduce only approximately 0.25 microsecond of latency per link.

For longer cable runs, the Cisco Nexus 5000 Series supports multimode, short-reach optical SFP+

●

transceivers. These optical transceivers use approximately 1W per transceiver and have a latency of less

than 0.1 microsecond.

Both these options provide lower latency and higher energy efficiency than 10GBASE-T. This standard uses

transceivers that consume 4 to 8W per transceiver and contribute a latency of up to 2.5 microseconds per link,

making the 10GBASE-T standard a significant contributor to network-level power consumption.

Table 2.

Connector (Media)

SFP+ CU copper

SFP+ USR MMF and USR

(provided as comparison

point)

SFP+ SR MMF and SR

RJ45 10GBASE-T copper (not

supported; provided as

comparison point)

Cisco Nexus 5000 Series Transceiver Support Matrix

Description

10GBASE-SR SFP+ module (MMF)

10GBASE-LR SFP+ module (SMF)

10GBASE-CU SFP+ cable 1m (Twinax cable)

10GBASE-CU SFP+ cable 3m (Twinax cable)

10GBASE-CU SFP+ cable 5m (Twinax cable)

1000BASE-T SFP

GE SFP, LC connector SX transceiver (MMF)

GE SFP, LC connector LX/LH transceiver (SMF)

1000BASE-T SFP, extended temperature range

GE SFP, LC connector SX transceiver (MMF), extended temperature range and digital optical monitoring (DOM)

GE SFP, LC connector LX/LH transceiver (SMF), extended temperature range and DOM

4-Gbps Fibre Channel SW SFP, LC (for Fibre Channel expansion module ports)

4-Gbps Fibre Channel LW SFP, LC (for Fibre Channel expansion module ports)

The Cisco Nexus 5000 Series Supports SFP+ Direct-Attach 10 Gigabit Copper for In-Rack Cabling, and Optical

Solutions for Longer Connections

Cable

Twinax

MM OM3

MM OM2

MM OM3

Cat6a or 7

Distance

Power (Each Side)

~0.1W

100m

82m

300m

30m

~4W

100m

~6W

Transceiver Latency (Link)

Standard

~0.1 microseconds

SFF 8431

~0 microseconds

IEEE 802.3ae

~0 microseconds

IEEE 802.3ae

~1.5 microseconds

IEEE 802.3an

~2.5 microseconds

Data Sheet

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