Cabletron Systems NBR-620, NBR-420, NBR-220 Connect an EPIM-T to a Twisted Pair Segment as follows

Chapter 3: Installation

Connect an EPIM-T to a Twisted Pair Segment as follows:

1.Connect the twisted pair segment to the module by inserting the RJ45 connector on the twisted pair segment into the RJ45 port on the module. See Figure 3-12.

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 3-13 shows the RJ45 pinouts.

NOTE:

RX+/RX– and TX+/TX– must share a common color pair.

	EPIM-T				TO
				10BASE-T Device
RJ45 Port					Port
RX+		1			1	RX+
RX–		2			2	RX–
TX+		3			3	TX+
TX–		6			6	TX–
			RJ-45 to RJ-45

1574-30

Figure 3-13 Cable Pinouts - EPIM-T RJ45 Port

c.Check the cable for continuity.

d.Check that the twisted pair connection meets dB loss and cable specifications outlined in Section C.1.1, 10BASE-T Twisted Pair Network.

If you still cannot establish a link, contact Cabletron Systems Technical Support.

Page 3-18 NBR-SERIES Installation Guide