Console Pinouts
The connector shown here and pinouts described here correspond to the connector labeled “Console” on the back of the P1705 & P1730.
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| 13 | 1 |
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| DB25 Female DCE |
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| 25 | 14 |
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Contact | CCITT | IEEE | Circuit |
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| Direction | |
Number | Circuit | Circuit | Name |
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| To | From |
| Number | Desig. |
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| DCE | DCE |
1 | 101 | AA | Protective Ground |
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| NA | |
2 | 103 | BA | Transmitted Data |
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| X |
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3 | 104 | BB | Received Data |
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| X |
5 | 106 | CB | Clear to Send |
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| X |
6 | 107 | CC | Data Set Ready |
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| X |
7 | 102 | AB | Signal Ground |
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| NA | |
8 | 109 | CF | Received Line Signal Detector (CD) |
| X | ||
20 | 108.2 | CD | Data Terminal Ready |
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| X |
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22 | 125 | CE | Ring Indicator |
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| X |
Figure D-3 Console Pinouts
The connecting cable must be a shielded cable.
When connecting the router console directly to a modem, a null modem cable must be used because both the router console and the modem are DCE devices. A null modem cable with pinouts according to the following figure must be used.
router Contact Number | Modem Contact Number |
8 | 20 |
3 | 2 |
2 | 3 |
20 | 8 |
7 | 7 |
4 | 5 |
5 | 4 |
22 | 22 |