| 4-pin RJ-11 |
4-pin RJ-11 Plug |
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| Used for voice/data applications: telephone (single-line), extended-distance perpherials. The RJ-11 connector has 6-position, 4-conductor arranged in a single row. | |||
| 6-pin RJ-12 |
6-pin RJ-12 Plug |
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| Used for voice/data applications: telephone(two-line), networking, extended-distance perpherials. The RJ-12 connector has 6-position, 6-conductor arranged in a single row. | |||
| 8-Pin RJ45 |
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| Used for voice/data applications: pbx, networking, dumb terminal, point-of-sale. The RJ-45 connector has 8-position, 8-conductor arranged in a single row. | |||
| 10-pin RJ-45 | ![]() 10-pin RJ-45 Plug |
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| Used for data applications: Digi. The 10-pin RJ-45 connector has 10-position, 10-conductor arranged in a single row. | |||
| 6-pin DEC/MMJ |
![]() 6-pin DEC/MMJ |
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| Used for voice/data applications: telephone, DEC systems. The DEC/MMJ connector is offset and has 6-position, 6-conductor arranged in a single row. | |||