Hitachi US7070447-001 User Manual

Page of 98
US7070447-001, Rev 01
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Chapter 4
Cabling
The HiSpeed switch models are similar in physical makeup of ports and LEDs. 
This section describes the following port types, LED configurations, and 
connections for all models.
10BASE-TX ports
10/100BASE-TX ports
100BASE-FX ports
Console connection
Reset button
Basic Connections 
For communications to take place between two devices, the transmitter of one 
device must connect to the receiver of the other device.  The connection must be 
achieved through a crossover function, which could be a crossover cable or a port 
that implements the crossover function internally.  All the 10/100BASE-TX ports 
are wired for MDI-X (media-dependent interface-crossover).  Use the proper 
cabling to connect to devices as follows:
To connect to a switch, hub, or bridge, use a crossover cable.
To connect to a workstation or file server, use a straight-thru cable.
Autonegotiation on the 10/100BASE-TX ports is set by polling the connected 
device.  The two devices will negotiate the speed, 10 Mbps or 100 Mbps, and 
select whichever is most optimal.