Allied-telesis AT-PBC18 Bedienungsanleitung PDF herunterladen (Seite 46)

Installing a Media Converter Module

Table 2 lists the pinouts of the RJ-45 ports for both MDI and MDI-X wiring

configurations.

Table 2 RJ-45 Pinout

Link Test/

MissingLink

The Link Test/MissingLink (LT/ML) button or switch, depending on your

module, allows you to perform a link test on the media converter ports

and to activate the MissingLink feature on the unit. Both features are

describe in the following section.

Link Test

The link test is a fast and easy way for you to test the connections

between the media converter ports and the end-nodes that are

connected to the ports. If a network problem occurs, you can perform a

link test to determine which port is experiencing a problem, and be able

to focus your troubleshooting efforts on the cable and end-node where

the problem resides.

A link test is performed when the LT/ML button or switch is in LT

position. For instructions on performing a link test, refer to

Troubleshooting on page 99.

Note

Performing a link test does not interfere with a media converter’s

ability to pass network traffic, except for the AT-PB1000 Series

modules.

MDI MDI-X

Pin Signal Pin Signal

1TD +1RD+

2TD-2RD-

3RD+3TD+

6RD-6TD-

4, 5, 7, 8 N/A 4, 5, 7, 8 N/A

1 2 ... 41 42 43 44 45 46 47 48 49 50 51 ... 119 120

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Allied-telesis AT-PBC18 Bedienungsanleitung Seite 46