3com 3C16894 4-slot Chassis 用户手册
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Optical Fiber Cable Connectors
79
Tx = Send data Rx = Receive data BI = I-directional data.
RJ-45 MDI-X Port Pin-outs.
Optical Fiber Cable
Connectors
Connectors
Figure 47 illustrates the SC optical fiber cable connector.
Figure 47 SC Optical Fiber Connector
3
Rx+
Receive data
BIDB+
Send data to direction B
4
Reserved
-
BIDC+
Receive data from direction C
5
Reserved
-
BIDC-
Send data to direction C
6
Rx-
Receive data
BIDB-
Receive data from direction B
7
Reserved
-
BIDD+
Send data to direction D
8
Reserved
-
BIDD-
Receive data from direction D
Table 56 RJ-45 MDI-X Port Pinouts
Pinout
10BASE-T/100 BASE-TX
1000BASE-T
Signal
Function
Signal
Function
1
Rx+
Receive data
BIDB+
Send data to direction B
2
Rx-
Receive data
BIDB-
Receive data from direction B
3
Tx+
Send data
BIDA+
Send data to direction A
4
Reserved
-
BIDD+
Receive data from direction D
5
Reserved
-
BIDD-
Send data to direction D
6
Tx-
Send data
BIDA-
Receive data from direction A
7
Reserved
-
BIDC+
Send data to direction C
8
Reserved
-
BIDC-
Receive data from direction C
Table 55 RJ-45 MDI Port Pin-outs (continued)
Pinout
10BASE-T/100BASE-TX
1000BASE-T