How to Make a T1 Cross Over Cable
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Making a T1 (T-1) Cross Over Cable is required in order to connect a PBX to another PBX, fax server or other CPE device. The information below demonstrates how to make a T1 Cross Over Cable.
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Pin out view facing the cable end. |
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To make a T1 crossover cable you will need an RJ45 crimping tool and at least one RJ45 end.
Although shielded T1 cable is the ideal, you will find that using a Category 5 (CAT5) patch cable will work just fine with out any issues.
The data pins are 1, 2, 4, and 5. The third pin is ground which is frequently unused.
Pins 6,7 & 8 are unused.
| Cable End 1 | Other End of Cable |
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PIN |
Connects to PIN |
| 1 | 4 |
| 2 | 5 |
| 4 | 1 |
| 5 | 2 |
See Also....
| Cable Making Tools and Parts |
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More Information
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