H3C Technologies H3C MSR 50 - Manual (Page 112)

3-8
LED status Description
Steady yellow A 100 Mbps link is present, but no data is being transmitted and received.
Blinking yellow A 100 Mbps link is present and data is being transmitted and received (ACT).
Table 3-9 Description of the DMIM-24FSW/DMIM-24FSW-PoE fiber interface LEDs
LED status Description
OFF No link is present.
Steady green A link is present, but no data is being transmitted and received.
Blinking green A link is present and data is being transmitted and received (ACT).
Steady yellow Error prompt
In addition, there is a POE LED on each board, which is provided for the corresponding boards
(MIM-16FSW-PoE and DMIM-24FSW-PoE) with the PoE function.
z
The MIM-16FSW interface module is 1U in height, occupying two slots.
z
The two GE interfaces on the DMIM-24FSW-PoE do not support the PoE function.
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 3-8 Ethernet cable
Ethernet cables fall into two categories: straight-through cables and crossover cables:
z
Straight-through cable: The sequences of the twisted pairs crimped by RJ-45 connectors at both
ends are the same. It is used for the connection between a terminal device (e.g., PC and router)
and a Hub/LAN Switch. The cables delivered with the Router are straight-through cables.
z
Crossover cable: The sequences of the twisted pairs crimped by RJ-45 connectors at both ends
are different. It is used for the connection between terminal devices (e.g., PC and router). In
addition, it can be made by the user.
For the pinouts of straight-through Ethernet cable and crossover Ethernet cable, see Low-End and
Mid-Range Series Routers Cable Manual.