Enterasys SecureStack C3K122-24 Hardware Installation Manual page 48

Connecting to the Network
c.
d. Ensure that the twisted pair connection meets the dB loss and cable specifications outlined
4. If a link is not established, contact Enterasys Networks. Refer to "Getting Help" on page 1‐5
for details.
Repeat all steps above until all connections have been made.
Figure 2-15
1 RJ45 switch port
2 Other device port
Figure 2-16
1 RJ45 switch port
2 Other device port
2-24 Hardware Installation
Verify that the RJ45 connectors on the twisted pair segment have the proper pinouts and
check the cable for continuity. Typically, a crossover cable is used between hub devices. A
straight‐through cable is used to connect between switches or hub devices and an end
user (computer). Refer to Figure 2‐15 and Figure
Refer to Figure 2‐17 and Figure
in the Cabling Guide. Refer to "Related Documents" on page xvi for information on
obtaining this document.
Four-Wire Crossover Cable RJ45 Pinouts for 10/100BASE-TX
À
Ã
3 RJ45-to-RJ45 crossover cable
4 RX+/RX- and TX+/TX-connections. These must share a common color pair.
Four-Wire Straight-Through Cable RJ45 Pinouts for 10/100BASE-TX
À
Ã
3 RJ45-to-RJ45 straight-through cable
4 RX+/RX- and TX+/TX-connections. These must share a common color pair.
2‐16 for four‐wire RJ45 connections.
2‐18 for eight‐wire RJ45 connections.
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