Connecting to the Network
2E42-27/2E42-27R/2E43-27/2E43-27R User’s Guide
3-11
b.
Verify that the RJ45 connectors on the twisted pair segment have
the proper pinouts (
Figure 3-7
) and check the cable for continuity.
Figure 3-7
Cable Pinouts - (RJ45) Crossover Cable
c.
Check that the twisted pair connection meets the dB loss and cable
specifications outlined in
Chapter 2
.
If a link is not established, contact the Cabletron Systems Global Call
Center. Refer to
Section 1.6
for details.
4.
Repeat steps 1 through 3 above, until all connections have been made.
3.4.1.2
2E43-27 or 2E43-27R Cable Connections
When facing the front panel of a 2E43-27 or 2E43-27R, the left RJ21 is
the connector for 10BASE-T ports 1 through 12. The right RJ21 is for the
10BASE-T ports 13 through 24 connections. All 24 ports have internal
crossovers.
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
SmartSwitch RJ45 Port
1574-30
RJ45 to RJ45
RX+
RX–
Summary of Contents for SmartSwitch 6E123-50
Page 2: ......
Page 8: ...Notice vi 2E42 27 2E42 27R 2E43 27 2E43 27R User s Guide ...
Page 24: ...Chapter 1 Introduction 1 12 2E42 27 2E42 27R 2E43 27 2E43 27R User s Guide ...
Page 44: ...Chapter 3 Installation 3 18 2E42 27 2E42 27R 2E43 27 2E43 27R User s Guide ...
Page 52: ...Chapter 4 Troubleshooting 4 8 2E42 27 2E42 27R 2E43 27 2E43 27R User s Guide ...
Page 144: ...Appendix A Specifications A 4 2E42 27 2E42 27R 2E43 27 2E43 27R User s Guide ...
Page 164: ...Index Index 6 2E42 27 2E42 27R 2E43 27 2E43 27R User s Guide ...
