- V4 c1 C0 ~) L$ D) U( vABS & }( s' [$ ~9 k: G% h, p9 f1 S$ ?% T- W2 z& y" w
9 i5 l: N i5 I5 t$ y
Broadcasting System c" V9 {# D0 c# d6 V
计算机网络层接线箱(分配线架)/ r/ @6 s4 T* M: j
IDF) [( \ i+ b% ^ W# o
) r. U+ F7 x d. N' g3 cIntermediate Distribution Frame0 @' }9 x) g$ R! o2 v+ G
计算机网络总接线箱(主配线架) {" B, H* G- t! c; gMDF- y. K# y5 T0 i
4 @; u$ h$ `- f- v: t
Main Distribution Frame $ J$ [! G( k( i# c% P移动通信中继箱4 ~2 @% \8 b8 _- k7 H
AMR ( w1 _* Z7 |! B( `( K" R+ o" ?0 ^8 x4 b( D. [% A
Mobile Relay: y; L2 c2 B( I7 \6 D2 `( D4 h
移动通信屏蔽箱6 s: k. e' h% I+ Z
AMS / ~1 S5 o5 w/ R; a. u6 t5 N, L/ e7 e
) v% O" _9 U0 x3 H I! @