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8.2 Functions
Functions of 1000BASE-T Port (Twisted-Pair Interface)
•
Auto-negotiation support for connecting to auto-negotiation devices
•
Supports both of half duplex and full duplex operations
•
Auto MDI/MDI-X crossover configuration and receiving polarity
correction for UTP connection
Pin Assignments
Pin
MDI
MDI-X
1
BI_DA+
BI_DB+
2
BI_DA-
BI_DB-
3
BI_DB+
BI_DA+
4
BI_DC-
BI_DD-
5
BI_DC+
BI_DD+
6
BI_DB-
BI_DA-
7
BI_DD+
BI_DC+
8
BI_DD-
BI_DC-
Functions of 1000BASE-X Fiber Port (Fiber Optic Interface)
•
Full data rate of 1000Mbps for full duplex operation
•
Configuration Jumper JP1 is used to enable or disable auto negotia-
tion function as follows:
NON-AUTO Disable auto negotiation function
(and forced full duplex)
AUTO
Enable auto negotiation function
Note:
1. For connecting to early 1000BASE-X devices which do not provide
auto negotiation capability, you might need to set the SW to NON-
AUTO position to prevent unexpected link failure occurrence.
2. In most of the cases, setting AUTO would make the link worked.
3. When installing two of these converters on both ends of a fiber
connection, set the switch to NON-AUTO (forced full duplex mode)
to achieve the best performance.