Appendix D Connector Pinouts
Table D-A
IBM/AT Style EIA-232 Interface
Pin | Name | I/O | Description |
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1 | CD | N/C | Carrier Detect |
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2 | RD | O | Receive Data |
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3 | TD | I | Transmit Data |
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4 | DTR | N/C | Data Terminal Ready |
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5 | GND | N/A | Signal Ground |
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6 | DSR | N/C | Data Set Ready |
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7 | RTS | I | Request to Send |
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8 | CTS | O | Clear to Send |
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9 | RI | N/C | Ring Indicator |
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I = Input | O = Output | N/A = Not Applicable | N/C = Not Connected |
Table D-B
ISDN
Pin 4 | Ring |
Pin 5 | Tip |
Express L128/L128T User Manual | 143 |
