t7345s 发表于 2015-1-29 22:20:08

ETSI EG 201 400-1 V1.1.1 (1999-02)

EG 201 400-1 V1.1.1 (1999-02)
ETSI Guide
Hybrid Fiber Coax (HFC) access networks;
Part 1: Interworking with PSTN, N-ISDN,
Internet and digital mobile networks


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admin 发表于 2015-1-30 11:45:07

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