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Chapter 5: Connecting to the Network
5-2 SEH100TX User’s Guide
Figure 5-1 SEH Network Ports
3. Check that the applicable LNK LED for the port is on. If the LED is
off, perform each of the following steps until it is on:
a. Check that the 100BASE-TX device at the other end of the twisted
pair segment is powered up.
b. Verify that the RJ45 connector on the twisted pair segment has the
proper pinouts.
c. Check the cable for continuity.
d. Check that the twisted pair connection meets the cable
specifications outlined in Section 3.1.2.
If a link is not established, contact Cabletron Systems Technical Support.
Refer to Section 1.3 for details on getting help.
5.1.2 Connecting to an EPIM-100TX
The EPIM-100TX is often used to provide a connection between the SEH
and a bridge, router, or switch. Normally, in this configuration, a
“straight-through” cable is used and the EPIM crossover switch, shown in
Figure 5-2, is set to “not crossed over.”
EPIM 1
5X
4X
3X
2X
1X
16X
15X
14X
13X
12X
EPIM-100TX
LNK
1511_10
EPIM 2