Connecting to the Network

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 10BASE-T device at the other end of the twisted pair segment is ON and connected to the segment.

b.Verify that the RJ45 connectors on the twisted pair segment have the proper pinouts (Figure 3-3) and check the cable for continuity.

 

 

TO

 

SmartSwitch RJ45 Port

 

RX+

 

 

 

 

 

1

 

 

 

NOTE:

RX–

2

 

 

 

 

 

 

 

 

RX+/RX– and TX+/TX–

 

 

 

 

must share a common

TX+

3

 

 

 

color pair.

 

 

 

 

TX–

6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TO

10BASE-T Device Port

1 RX+

2 RX–

3 TX+

6 TX–

RJ45 to RJ45

LKG-10875-98F

Figure 3-3 Cable Pinouts - (RJ45) Crossover Cable

c.Check that the twisted pair connection meets the dB loss and cable specifications outlined in Chapter 2.

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

4.Repeat steps 1 through 3, above, until all connections have been made.

DLE22-MA, DLE32-MA, DLE23-MA and DLE33-MA User’s Guide 3-7

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Image 49
Cabletron Systems DLE22-MA, DLE33-MA, DLE32-MA, DLE23-MA manual Cable Pinouts RJ45 Crossover Cable