Appendix B

Connector Pin Assignments

Each of the Four 8-pin MJ connectors for 10/100 Mb/sec are wired as shown in Figure 2:

1 2 3 4 5 6 7 8

Figure 2 8-Pin MJ Connector (Front)

With the connection pins assigned as shown in Table 5:

Pin Number

1

2

3

4

5

6

7

8

Signal Name

Transmit +

TX (+)

Transmit -

TX (-)

Receive +

RX (+)

No Connection

NC

No Connection

NC

Receive -

RX (-)

No Connection

NC

No Connection

NC

Table 5 8-Pin MJ Connector Pin Assignments

Connection from the ITI-5232 adapter to a network hub must be made as shown in Table 6:

 

 

 

 

Straight Through

 

 

 

 

 

 

Adapter Pin

 

 

 

Hub Pin

 

 

TX (+)

1

 

∩∪

1

 

RX (+)

TX (-)

2

 

∩∪

2

 

RX (-)

RX (+)

3

 

∩∪

3

 

TX (+)

 

4

 

 

4

 

 

 

5

 

 

5

 

 

RX (-)

6

 

∩∪

6

 

TX (-)

 

7

 

 

7

 

 

 

 

8

 

 

 

8

 

 

30