Lenovo Flex System EN2092 Product Manual - Page 5
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Supported cables and transceivers
If the 10Gb Uplinks upgrade (49Y4298) is used or the client uses flexible port mapping to activate an
external SFP+ port, then either SFP+ transceivers or DAC cables are required to provide outside
connectivity. The following table lists supported SFP/SFP+ and DAC cable options.
Table 3. Supported SFP/SFP+ transceivers and DAC cables
Description
Serial console cables
Flex System Management Serial Access Cable Kit
SFP transceivers - 1 GbE
SFP RJ-45 Transceiver (does not support 10/100 Mbps)
SFP 1000Base-T (RJ-45) Transceiver (does not support 10/100 Mbps)
SFP SX Transceiver
SFP LX Transceiver
SFP+ transceivers - 10 GbE
SFP+ SR Transceiver
SFP+ LR Transceiver
SFP+ direct-attach cables - 10 GbE
1m Passive DAC SFP+ Cable
1.5m Passive DAC SFP+ Cable
2m Passive DAC SFP+ Cable
3m Passive DAC SFP+ Cable
5m Passive DAC SFP+ Cable
7m Passive DAC SFP+ Cable
With the flexibility of the EN2092 switch, clients can take advantage of the technologies that they require
for multiple environments:
For 1 GbE links, you can use RJ-45 UTP cables up to 100 m. Clients that need longer distances can
leverage the SFP/SFP+ external ports using a 1000BASE-SX transceiver which can drive distances
up to 220 meters 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 (supported on external SFP+ ports), you 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.
Flex System EN2092 1Gb Ethernet Scalable Switch
Part
Feature code
number
(x-config / e-config)
90Y9338
A2RR / None
81Y1618
3268 / EB29
00FE333
A5DL / EB29
81Y1622
3269 / EB2A
90Y9424
A1PN / ECB8
46C3447
5053 / EB28
90Y9412
A1PM / ECB9
90Y9427
A1PH / ECB4
00AY764
A51N / None
00AY765
A51P / None
90Y9430
A1PJ / ECB5
90Y9433
A1PK / ECB6
00D6151
A3RH / ECBH
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