Connecting A Utp Segment To An Epim-T - Cabletron Systems HubSTACK SEHI-34 User Manual

CONNECTING TO THE NETWORK
4. Check that the link LED on the 10BASE-T Ethernet device and the
applicable LNK LED on the SEHI are on. If the LEDs are not on,
perform each of the following steps until the LEDs are on:
a. Check that the 10BASE-T device and the SEHI have power.
b. Verify the cabling between the SEHI and the 10BASE-T device.
c. Check the cable for continuity.
If a link has not been established, contact Cabletron Systems
Technical Support.

4.1.3 Connecting a UTP Segment to an EPIM-T

Before connecting a segment to the EPIM-T, check each end of the
segment to determine if the wires have been crossed-over for the
proper connection. If the wires do not cross over, use the switch on the
EPIM-T to internally cross over the RJ45 port. Refer to Figure 4-3 to
properly set the EPIM-T cross-over switch.
Position X
(crossed over)
1. RX+
2. RX-
3. TX+
4. NC
Page 4-4
5. NC
6. TX-
7. NC
8. NC
Position =
(not crossed over)
1. TX+
2. TX-
3. RX+
4. NC
Figure 4-3. EPIM-T Cross-over Switch
5. NC
6. RX-
7. NC
8. NC