10Base-T (Rj-45) Module; 10Base-T (Rj-45) Configuration - 3Com CoreBuilder 2500 Getting Started Manual

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10BASE-T (RJ-45) Module

This section contains information on common
10BASE-T (RJ-45) configurations and how to cable
the 10BASE-T (RJ-45) media option.
Follow these guidelines when cabling 10BASE-T:
Use only copper, unshielded twisted-pair (UTP)
wire. Do not use flat, multiconductor cable (for
example, silver satin), which is often identified by
solid colors such as red, green, yellow, or black.
Use two twisted pairs for each link.
Use twisted-pair wire that is 22-26 AWG (0.5
millimeter) in diameter.
Use twisted-pair wire with an impedance
between 85 and 115 ohms.
Ensure that the twisted-pair link length from the
system to any potential workstation location is
100 meters (328 feet) or less.
10BASE-T (RJ-45) Configuration
A sample 10BASE-T (RJ-45) configuration is
illustrated in Figure 4-7. Your configuration may
have different quantities or types of devices than
pictured in this example.
Figure 4-7 shows an Ethernet module with
10BASE-T (RJ-45) connectors attached to a PC with
a 10BASE-T Network Interface Card (NIC) through
UTP wire. A server is attached to unshielded
twisted pair through a transceiver.
Error Active Error Active Error Active Error Active Error Active Error Active Error
Board
Error TX 1 RX TX 2 RX TX 3 RX TX 4 RX TX 5 RX TX 6 RX
Figure 4-7 Sample Ethernet Configuration Using the
10BASE-T (RJ-45) Module
PC with NIC
UTP cable
Active Error Active Port Status
TX 7 RX TX 8 RX
Server
Transceiver