Connectors and LEDs
Figure 5 shows the front panel of the Flex System EN6131 40Gb Ethernet Switch.
Figure 5. Front panel of the Flex System EN6131 40Gb Ethernet Switch
The front panel contains the following components:
LEDs that display the status of the module and the network:
Green power LED indicates that the module passed the power-on self-test (POST) with no
critical faults and is operational.
Identify LED: This blue LED can be used to identify the module physically by illuminating it
through the management software.
The fault LED (switch error) indicates that the module failed the POST or detected an
operational fault.
Eighteen external QSFP+ ports for 10 Gbps, 20 Gbps, or 40 Gbps connections to the external
network devices.
An Ethernet physical link LED and an Ethernet Tx/Rx LED for each external port on the module.
One mini-USB RS-232 console port that provides an additional means to configure the switch
module. This mini-USB-style connector enables the connection of a special serial cable (the cable is
optional, and it is not included with the switch. See the "Part number information" section for
details).
Network cabling requirements
The network cables that can be used with the EN6131 40Gb Ethernet Switch are shown in Table 6.
Table 6. EN6131 40Gb Ethernet Switch network cabling requirements
Transceiver
Standard
Cable
Connector
40 Gb Ethernet
40GBASE-SR4
QSFP+ Transceiver
(49Y7884)
40GBASE-
SR4
Lenovo 10 m or 30 m MTP fiber optics cables (see Table 2);
support for up to 100 m with OM3 multimode fiber or up to 150
m with OM4 multimode fiber
MTP
Direct attach cable
40GBASE-
CR4
Lenovo QSFP+ to QSFP+ DAC cables up to 7 m (see Table 2)
QSFP+
Management ports
External 1 GbE
management port
1000BASE-
T
UTP Category 5, 5E, and 6 up to 100 meters
RJ-45
External RS-232
management port
RS-232
DB-9-to-mini-USB or RJ-45-to-mini-USB console cable (comes
with optional Management Serial Access Cable, 90Y9338)
Mini-USB
Warranty
Lenovo Flex System EN6131 40Gb Ethernet Switch
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