Appendix B: Connector Pinouts
Appendix B. Connector Pinouts
B.1 DB9 M Connector
Figure B-1. DB9 M connector.
Table B-1. DB9 M connector pinout.
DB9 M Pin | Direction | |
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1 | Input | DCD |
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2 | Input | RXD |
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3 | Output | TXD |
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4 | Output | DTR |
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5 | — | GND |
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6 | Input | DSR |
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7 | Output | RTS |
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8 | Input | CTS |
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9 | Input | RI |
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B.2 Terminal Block
Figure B-2. Terminal block connector.
Table B-2. Terminal block connector pinout.
Terminal | Direction | |||
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A | RTS | Output | TDA | Data A |
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B | TD | Output | TDB (+) | Data B (+) |
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C | CTS | Input | RDA | — |
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D | RD | Input | RDB (+) | — |
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E | GND | — | GND | GND |
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