Cabletron Systems CSX200 CyberSWITCH Installation Manual page 34

Chapter 3: 10BASE-T LAN Requirements
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.
NOTE:
RX+/RX– and TX+/TX–
must share a common
color pair.
c. Check that the twisted pair connection meets the dB loss and cable specifications outlined
in 10BASE-T LAN
If a link is not established, contact Cabletron Systems Technical Support. Refer to
Help in Chapter
4. Repeat step 2, above, until all connections have been made.
3-4
TO
CyberSWITCH RJ45 Port
RX+
1
RX– 2
TX+
3
TX–
6
Figure 3-2 Cable Pinouts - (RJ45) Crossover Cable
Requirements.
1, Introduction, for details.
TO
10BASE-T Device Port
1
2
3
6
RJ45 to RJ45
CSX200 Installation Guide
RX+
RX–
TX+
TX–
2012_13
Getting