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This appendix describes the FastHub 116C connectors.
Port 16 uses a standard ST connector. The arrangement of the pins is shown in Figure B-1.
Figure B-1 100Base FX Connector
Ports 1 through 15 use standard RJ-45 connectors. The arrangement of the pins is shown in Figure B-2 and the pinouts are shown in Table B-1.
Table B-1 100Base TX Connector Pinouts
| Pin | Function |
|---|---|
| 1 | RD+ |
| 2 | RD- |
| 3 | TD+ |
| 4 | NC |
| 5 | NC |
| 6 | TD- |
| 7 | NC |
| 8 | NC |
The shell for each connector is connected to the chassis ground. The 100Base TX ports have their transmit (TD) and receive (RD) pairs internally crossed (shown with an x) for attachment to an adapter using a straight-through cable. The straight-through and crossover cable schematics are shown in Figure B-3 and Figure B-4.
Figure B-3 Straight-Through Cable Schematic
Figure B-4 Crossover Cable Schematic
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