3Com 7754 Installation Manual page 79

Optical Fiber Cable
Connectors
Table 55 RJ-45 MDI Port Pin-outs (continued)
Pinout 10BASE-T/100BASE-TX
3 Rx+ Receive data
4 Reserved -
5 Reserved -
6 Rx- Receive data
7 Reserved -
8 Reserved -
Tx = Send data Rx = Receive data BI = I-directional data.
Table 56 lists
RJ-45 MDI-X Port Pin-outs.
Table 56 RJ-45 MDI-X Port Pinouts
Pinout 10BASE-T/100 BASE-TX
Signal Function
1 Rx+ Receive data
2 Rx- Receive data
3 Tx+ Send data
4 Reserved -
5 Reserved -
6 Tx- Send data
7 Reserved -
8 Reserved -
Figure 47 illustrates the SC optical fiber cable connector.
Figure 47 SC Optical Fiber Connector
Optical Fiber Cable Connectors
1000BASE-T
BIDB+ Send data to direction B
BIDC+ Receive data from direction C
BIDC- Send data to direction C
BIDB- Receive data from direction B
BIDD+ Send data to direction D
BIDD- Receive data from direction D
1000BASE-T
Signal Function
BIDB+ Send data to direction B
BIDB- Receive data from direction B
BIDA+ Send data to direction A
BIDD+ Receive data from direction D
BIDD- Send data to direction D
BIDA- Receive data from direction A
BIDC+ Send data to direction C
BIDC- Receive data from direction C
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