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Standard: # p- f! i+ {4 W$ j6 B/ w5 d( wIEC 60950-1:2000, 1st ed,! ^8 }" N ?5 u' ?& F
Sub clause: * e- i/ }. ?$ O' U4 G: i7 ) r n/ L4 D+ I0 z* B$ pSheet No.& k; c9 c2 k' M6 h7 t# W6 I
445 P5 |! A$ _" \+ p3 l3 OSubject: 5 @6 a' d1 P8 p! u+ rProtection of users' K, R5 l: `9 y1 M" `& L
Key words: 0 d9 t0 S# O" s0 uAntenna, voltage surge test + i9 V& s; t7 ?" [Decision taken at the 4 G! h% l; H( ?" e40th meeting 2003 ; X! g# a/ o" f/ `6 v' xQuestion:- l- i8 v/ S) ^$ h$ z* W
For protection of users and service persons from transients and voltage surges, what are the appropriate% z6 T" H* x' z
requirements between the following points for ITE connected to an external antenna:# c0 p9 P3 T! R/ H3 A4 r& P+ b
(a) antenna connection and Primary circuits? 2 {- ^3 M( p* u m% g(b) antenna connection and SELV circuits when the antenna cabling is coax?4 R. q! ^/ T/ I, I% O( [$ H, Z
(c) Antenna connection and SELV circuits when the antenna cabling is unshielded twisted pair 0 S3 e a: n1 `3 Z6 {! O(UTP)? 6 h+ R/ W1 a, F9 L; f3 pSee attached diagram.9 j- W+ I* W" I2 W# g7 Z: t
Decision: T; C7 ]/ x# J) S* S- C6 d8 L4 wSince Clause 7 is in IEC 60950-1, but is not in IEC 60950 3rd Ed, all references are to IEC 60950-1 N& E3 K5 z0 E aThe circuit connected to the antenna is classified in accordance with Sub-Clause 7.1 and subjected to the 6 v$ \5 F. y! ?3 k! K( aappropriate requirements per 7.1. Additionally, - G# S+ E/ T# P1 {( U+ g: c; k7 v) @(a) Sub-clause 7.3.1 is applied between the external antenna connection (terminal) and Primary( T" l4 [# {0 f/ s5 \
circuits.+ z& t0 c+ T* P2 w( ?0 T
(b) Sub-clause 7.2 is applied between the external antenna connection (terminal) and the SELV& i! {; S% s8 d9 n8 O
connector (RJ -45) when the antenna cabling is coax. 9 P/ I5 b, C! A7 t5 A7 n(c) Sub-clause 7.2 is applied between the external antenna connection (terminal) and the SELV 4 g3 r( g1 f4 `! |" l* d! Bconnector (RJ -45) when the antenna cabling is UTP.* ?" W: r" H, J! i& t1 h5 J: K
7 F6 l1 ^6 v* j# {[attach]77163[/attach]3 k$ K# w i1 z4 a# L3 X
DSH 445' C; x& R1 C( S6 G% `