t7345s 发表于 2014-12-27 21:49:23

ETSI EG 201 120 V1.1.1 (1998-01)

EG 201 120 V1.1.1 (1998-01)
ETSI Guide
Public Switched Telephone Network (PSTN);
Method of rating terminal equipment so that it can be
connected in series and/or in parallel to a
Network Termination Point (NTP)

admin 发表于 2014-12-28 15:29:45

谢谢您的分享，金币已奖励
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