Cabletron Systems DLE22-MA, DLE33-MA, DLE32-MA, DLE23-MA manual DELTX-UI Crossover Switch

Connecting to the Network

Position =

(not crossed over)

1. TX+ 5. NC

2. TX- 6. RX-

3.RX+ 7. NC

4.NC 8. NC

= x

10

100

DELTX-UI

Position X (crossed over)

1.RX+ 5. NC

2.RX- 6. TX-

3.TX+ 7. NC

4.NC 8. NC

LKG-10872-98F

Figure 3-6 DELTX-UI Crossover Switch

Connect an DELTX-UI to a twisted pair segment as follows:

1.Ensure that the device connected to the other end of the segment is powered ON.

2.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 shown in Figure 3-6.

3.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, perform the following steps until it is on:

a.Verify that the 100BASE-TX 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 dB loss and cable specifications outlined in Section 2.3.

e.Confirm that the crossover switch is in the correct position.

If a link is not established, contact your DIGITAL representative.

DLE22-MA, DLE32-MA, DLE23-MA and DLE33-MA User’s Guide 3-11