3-8
z
For a 10/100 Mbps port provided by the RPU, connect it to a PC or another router using a
crossover cable or to a Hub or LAN switch using a straight-through cable.
Step 2: View the LINK LED of the Ethernet interface: ON means a link is present. OFF means no link is
present; check the line for the cause.
Ethernet Switching Interface
The MSR 20-21 Router is available with fixed 100Base-TX FE interface(s). The following table
describes Ethernet switching interface attributes:
Table 3-5
Attributes of the Ethernet switching interface
Attribute
Description
Connector
RJ-45
Interface
MDI/MDIX
Frame format
Ethernet_II
Ethernet_SNAP
Operating mode
10/100 Mbps auto-sensing
Full duplex/half duplex
MDI (media dependent interface is a typical type of Ethernet interface provided by network adapters.
MDIX is crossover media-dependent interface, which is commonly found on a Hub or LAN switch.
Ethernet cable
Ethernet interfaces usually use category 5 twisted pair cables, as shown in the following figure:
Figure 3-8
Ethernet cable
Ethernet cables fit into the following two categories:
z
Standard cable, also called straight-through cable, at both ends of which, wires are crimped in the
RJ-45 connectors in the same sequence. The cable connects different categories of devices, such
as a terminal device (PC for example) or router to a Hub or LAN switch. The cable accompanying
the router is straight-through cable.
