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Chapter 3: 10BASE-T LAN Requirements
3-4 CSX200 Installation Guide
3. Verify that a Link exists by checking that the receive port (RCV) LED is on (flashing green or
amber or on solid green). If the RCV LED is off, perform the following steps until it is on:
a. Check that the 10BASE-T device at the other end of the twisted pair segment is ON and
connected to the segment.
b. Verify that the RJ45 connectors on the twisted pair segment have the proper pinouts
(Figure 3-2) and check the cable for continuity.
Figure 3-2 Cable Pinouts - (RJ45) Crossover Cable
c. Check that the twisted pair connection meets the dB loss and cable specifications outlined
in 10BASE-T LAN Requirements.
If a link is not established, contact Cabletron Systems Technical Support. Refer to Getting
Help in Chapter 1, Introduction, for details.
4. Repeat step 2, above, until all connections have been made.
TX+
TX–
RX+
RX– 2
1
3
6
TO
10BASE-T Device Port
TX+
TX–
2
1
3
6
NOTE:
RX+/RX– and TX+/TX–
must share a common
color pair.
TO
CyberSWITCH RJ45 Port
2012_13
RJ45 to RJ45
RX+
RX–