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22 CHAPTER 2: SMART INTERFACE CARDS
n
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.
Interface LEDs SIC-1FEA panel is shown in the following figure:
Figure 5 SIC-1FEA panel
The status description of the LEDs on SIC-1FEA panel is listed in the following
table:
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:
Figure 6 Ethernet cable
Ethernet cables fall into two categories: straight-through cables and crossover
cables, specifically,
Operating mode 10/100 Mbps autosensing
Full duplex/half duplex
Table 1 Interface attributes of SIC-1FEA
Attribute SIC-1FEA
Table 2 Description of the LEDs on SIC-1FEA panel
LED Description
LINK OFF means no link is present;
ON means a link is present.
ACT OFF means no data is being
transmitted or received;
Blinking means data is being received
or/and transmitted.