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NOTE:
• As a best practice, use H3C QSFP+ transceiver modules, QSFP+ cables, or QSFP+ to SFP+ cables for the
QSFP+ ports on the switch. The H3C QSFP+ transceiver modules, QSFP+ cables, and QSFP+ to SFP+
cables available for the QSFP+ ports are subject to change over time. For the most recent list of QSFP+
transceiver modules, QSFP+ cables, and QSFP+ to SFP+ cables available for the QSFP+ ports, contact
H3C Support or marketing staff.
• You can use a QSFP-40G-SR4-MM850 or QSFP-40G-CSR4-MM850 transceiver module to connect a
QSFP+ port to four SFP+ ports. The QSFP+ transceiver module and SFP+ transceiver modules to be
connected must be the same in specifications, including central wavelength and fiber type.
For more information about H3C QSFP+ transceiver modules, QSFP+ cables, and QSFP+ to SFP+ cables,
see H3C Transceiver Modules User Guide.
Combo interface
The S5560-30F-EI and S5560-34C-EI switches each provide eight combo interfaces. A combo interface
contains an SFP port and a 10/100/1000BASE-T autosensing Ethernet port. Only one of these two ports
can operate at a time.
LEDs
System status LED
The system status LED shows the operating state of the switch.
Table 29 System status LED description
LED mark Status Description
SYS
Steady green The switch is operating correctly.
Flashing green (1 Hz) The switch is performing power-on self test (POST).
Steady red The switch has failed the POST or is faulty.
Flashing yellow (1 Hz) Some ports have failed to pass POST or are faulty.
Off The switch is powered off.
Power module status LED
The S5560-30C-EI, S5560-34C-EI, S5560-54C-EI, S5560-30F-EI, S5560-30C-PWR-EI, and
S5560-54C-PWR-EI switches provide two power module slots at the rear. For each power module, these
switches provide a power module status LED on the front panel.
Table 30 Power module status LED description
LED mark Status Description
PWR1 Steady green
A power module is installed in power module slot 1, and the
power module is outputting power correctly.
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