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. LAN-c WAN c .
. 2 LAN- . 5. . 6. , ROUTER . SWITCH . 7.
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14. 15. (STP-shielded twisted pair) 16. UTP (ScTP) 17. , (UTP-Unshielded TP) 18. (connectors) 19. UTP- RJ-Registered Jack T1-T4 R1-R4 8 ... 1 20. (jack) (patch panel) 21. LAN CARD 22. , , 23. T568-A 24. T568-B 25. EIA/TIA 568 A, B 26. 27.
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