Cables and Connectors
Cable and Connector
RS-232 WAN Cable—Minimum Pin-Outs
WAN link end |
| Router end | EIA and Signal Name | ||||
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| 59 | BA | Send Data | |
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3 |
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| 1 | BB | Receive Data | |
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4 |
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| 57 | CA | Request to Send |
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5 |
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| 4 | CB | Clear to Send | |
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6 |
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| 46 | CC | Data Mode | |
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7 |
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| 9 | AB | Signal Ground | |
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| 47 |
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| 52 |
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8 |
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| 6 | CF | Receiver Ready | |
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12 |
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| 28 |
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13 |
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| 7 |
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14 |
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| 13 |
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15 |
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| 2 | DB | Send Timing |
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16 |
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| 49 |
| Reserved | |
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| 3 | DD | Receive Timing | |
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| 12 |
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20 |
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| 58 | CD | Terminal Ready | |
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| 29 |
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22 |
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| 48 |
| Reserved | |
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23 |
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| 55 |
| Reserved | |
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24 |
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| 56 | DA | Terminal Timing | |
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The maximum cable length is 15 meters (50 feet).