Lenovo EN4091 88Y6043 Data Sheet
Product codes
88Y6043
IBM Flex System EN4091 10Gb Ethernet Pass-thru Module
3
Supported transceivers and cables
The following table lists the supported cables and transceivers.
Table 2. Supported transceivers and DAC cables
Part number
Feature code*
Description
SFP transceivers - 1 GbE
81Y1618
3268 / EB29
IBM SFP RJ-45 Transceiver (does not support 10/100 Mbps)
00FE333
A5DL / EB29
IBM SFP 1000Base-T (RJ-45) Transceiver (does not support 10/100 Mbps)
81Y1622
3269 / EB2A
IBM SFP SX Transceiver
90Y9424
A1PN / None
IBM SFP LX Transceiver
SFP+ transceivers - 10 GbE
46C3447
5053 / EB28
IBM SFP+ SR Transceiver
90Y9412
A1PM / ECB9
IBM SFP+ LR Transceiver
44W4408
4942 / 3382
10GbE 850 nm Fiber SFP+ Transceiver (SR)
SFP+ Direct-attach copper (DAC) cables - 10 GbE
81Y8295
A18M / EN01
1m 10GE Twinax Act Copper SFP+
81Y8296
A18N / EN02
3m 10GE Twinax Act Copper SFP+
81Y8297
A18P / EN03
5m 10GE Twinax Act Copper SFP+
95Y0323
A25A / None
1m IBM Active DAC SFP+ Cable
95Y0326
A25B / None
3m IBM Active DAC SFP+ Cable
95Y0329
A25C / None
5m IBM Active DAC SFP+ Cable
90Y9427**
A1PH / None
1m IBM Passive DAC SFP+
90Y9430**
A1PJ / None
3m IBM Passive DAC SFP+
90Y9433**
A1PK / ECB6
5m IBM Passive DAC SFP+
* The first feature code listed is for configurations ordered through System x sales channels. The second feature
code is for configurations ordered through the Power Systems sales channel.
** The EN4091 10Gb Pass-Thru supports Passive DAC cables as of firmware 2.0.2.0
With the flexibility of the IBM Flex System EN4091 10Gb Ethernet Pass-thru Module, clients can take
advantage of the technologies that they require for multiple environments:
For 1 GbE links, you can use SFP transceivers plus RJ-45 cables or LC-to-LC fiber cables,
depending on the transceiver.
For 10 GbE, you can use direct-attached copper (DAC, also known as Twinax) cables, which come in
For 10 GbE, you can use direct-attached copper (DAC, also known as Twinax) cables, which come in
lengths between 1 m and 5 m. These DAC cables are a cost-effective and low-power alternative to
transceivers, and are ideal for all 10 Gb Ethernet connectivity to the Top-of-the-Rack (TOR) switches.
For longer distances, you can use SFP+ transceivers (SR or LR) plus LC-to-LC fiber optic cables.