Cabletron Systems EMM-E6 Ethernet manual Connecting a Twisted Pair Segment to an EPIM-T

CONNECTING TO THE NETWORK

3.9.1Connecting a Twisted Pair Segment to an EPIM-T

Before connecting a segment to the EPIM-T, check each end of the segment to determine wire cross-over. If the wires do not cross over, use the switch on the EPIM-T to internally cross over the RJ45 port. Refer to Figure 3-10 to properly set the EPIM-T cross-over switch.

NOTE

To establish link, you must have an odd number of cross-overs (preferably one) between 10BASE-T devices of the same type (i.e., from repeater to repeater or transceiver to transceiver).

Position X (crossed over)

1. RX+	5. NC
2. RX-	6. TX-
3. TX+	7. NC
4. NC	8. NC

Position =

(not crossed over)

1. TX+	5.	NC
2. TX-	6.	RX-
3. RX+	7. NC
4. NC	8. NC

Figure 3-10. EPIM-T Cross-over Switch

To connect an EPIM-T to a Twisted Pair Segment:

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 3-10.)

EMM-E6 User’s Guide 3-19