H3C Technologies H3C MSR 50 - Manual (Page 30)

2-10
The following table describes the electrical interface LEDs on the left of the SIC-1GEC panel.
Table 2-9 LEDs for the electrical interface on the left of the SIC-1GEC panel
LED Description
LINK
z
ON means carrier signal is received;
z
OFF means no carrier signal is received;
z
Green: Data is being received and transmitted at a speed of 1000 Mbps.
z Yellow: Data is being received and transmitted at a speed of 100/10 Mbps.
ACT
z OFF: No data is being received and transmitted;
z
Blinking: Data is being received and transmitted.
Table 2-10 LEDs for the fiber interface on the right of the SIC-1GEC panel
LED Description
LINK
z
ON means carrier signal is received;
z
OFF means no carrier signal is received;
z
Green: Data is being received and transmitted at a speed of 1000 Mbps;
z Yellow: Fault.
ACT
z OFF: No data is being received and transmitted;
z
Blinking: Data is being received and transmitted.
Interface cable
Typically, a 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 2-9 Ethernet cable
Ethernet cables fall into two categories: straight-through cables and crossover cables:
z
Straight-through cable: The wire sequences of the twisted pair cable crimped in the RJ-45
connectors at both ends are completely the same. It is used to connect terminal devices (such as
PCs, routers) to Hubs or LAN Switches.
z
Crossover cable: The wire sequences of twisted pair cable crimped in the RJ-45 connectors at both
ends are different. It can be used to connect two terminal devices (such as PCs and Routers).
For the pinouts, identification and making methods of these two kinds of network cables, see Low-End
and Mid-Range Series Routers Cable Manual .
Connecting the interface cable
1) Connect Ethernet fiber interface cable
When connecting optical fiber: