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Installing and Operating Passport ARN Routers
The connector pin assignment described in Table
Table C-15. Service Modem Port DB-9 Pin Assignments
Pin Assignment |
| Pin No. | Signal Name | Direction |
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| 1 | DCD (Data carrier detect) | From modem |
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| 2 | TXD (Transmit data) | To modem |
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Pin 1 |
| 3 | RXD (Receive data) | From modem |
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| 4 | DSR (Data set ready) | From modem |
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| 5 | GND | N/A |
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| 6 | DTR (Data terminal ready) | To modem |
| Pin 9 |
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| 7 | CTS (Clear to send) | From modem | |
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| 8 | RTS (Request to send) | To modem |
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| 9 | Not used | N/A |
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