Enterasys Networks 2H252-25R manual Straight-Through Cable

Connecting to the Network

Figure 3-7 Schematic of Straight-Through and Crossover Cables

Straight-Through Cable

	TO				TO
SmartSwitch RJ45 Port			10BASE-T or 100BASE-TX
				Device Port
RX+	1				1	RX+
RX–	2				2	RX–
TX+	3				3	TX+
TX–	6				6	TX–
NOTE:			RJ45 to RJ45
RX+/RX– and TX+/TX–
must share a common
color pair.		Crossover Cable
	TO				TO
SmartSwitch RJ45 Port			10BASE-T or 100BASE-TX
				Device Port

RX+ 1

RX– 2

TX+ 3 TX– 6

RJ45 to RJ45

1RX+

2 RX–

3TX+

6 TX–

25041-08

4.Verify that a link exists by checking that the port RX LED is on (flashing amber, blinking green, or solid green). If the RX LED is off and the TX LED is not blinking amber, perform the following steps until it is on:

a.Verify that the device at the other end of the twisted pair segment is powered up.

b.Verify that the RJ45 connector on the twisted pair segment has the proper pinouts.

c.Check the cable for continuity.

d.Make sure that the twisted pair connection meets the db loss and cable specifications outlined in Section 2.3.

e.If a link is not established, contact Enterasys Networks. Refer to Section 1.2 for details.

5.Repeat steps 1 through 4 for each connection until all connections have been verified.

Installation 3-11