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Interface Card and Interface Module Manual
H3C MSR 20/30/50 Series Routers
Chapter 2 Smart Interface Cards
2-24
Note:
MDI stands for Media Dependent Interface of the Ethernet. Normally, the interfaces on
the network cards belong to this type. MDIX stands for Cross Media Dependent
Interface, which is usually adopted on HUBs or LAN Switches.
2.7.3 Interface LEDs
The following figure illustrates the SIC-4FSW/SIC-4FSW-PoE panel.
Figure 2-30
SIC-4FSW/SIC-4FSW-PoE panel
The following figure illustrates the DSIC-9FSW/DSIC-9FSW-PoE panel.
Figure 2-31
DSIC-9FSW/DSIC-9FSW-PoE panel
On the panel, each port corresponds with one green LED. The following table describes
the LEDs on the panel.
Table 2-15
LEDs on the panel
LED
Description
Steady ON
A link is present, but there is no data being transmitted or received.
OFF
No link is present.
Blinking
A link is present and there is data being transmitted and received
(ACT).
In addition, there is a POE LED on each board, which is provided for the corresponding
boards (SIC-4FSW-POE and DSIC-9FSW-POE) with the POE function.
2.7.4 Interface Cable
Normally, category-5 twisted pair cable is adopted to connect the 10BASE-T
/100BASE-TX Ethernet interface to the Ethernet, as shown in the following figure: