Cabletron Systems EMM-E6 Ethernet - Manual (Page 81)

CHAPTER 3: INSTALLATION
3-20 EMM-E6 User’s Guide
2. Check that the LNK LED for the port is on. If the LED is not on,
perform each of the following steps until it is:
a. Check that the 10BASE-T device at the other end of the twisted
pair segment is powered.
b. Verify that the RJ45 connectors on the twisted pair segment have
the proper pinouts (Figure 3-11).
c. Check the cable for continuity.
d. Check that the twisted pair connection meets dB loss and cable
specifications outlined in 10BASE-T Twisted Pair Network
Requirements (Chapter 2).
Figure 3-11. Cable Pinouts - EPIM-T RJ45 Port
If you still cannot establish link, contact Cabletron Technical Support.
TX+
TX–
RX+
RX– 2
1
3
6
10BASE-T Device
Port
TX+
TX– 2
1
3
6
RX+
RX–
RJ-45 to RJ-45
NOTE:
RX+/RX– and TX+/TX–
must share a common
color pair.
EPIM-T
Port
CH1Book Page 20 Wednesday, March 20, 1996 7:48 AM