n+ o# Y4 ~! W0 gStandard: $ Y3 r) x' K8 C- W8 n9 cIEC 60950-1:2000, 1st ed, ; |; [2 f5 F* B iSub clause:1 r5 }2 q) F* z& a. t
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Sheet No.8 w; p/ p( t T3 A; Y! R) _
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Subject:9 A+ e5 I0 |: @
Protection of users, w7 e% \; Q$ z+ U
Key words: ' J3 J# ]' o$ O# e/ R& k( l9 aAntenna, voltage surge test 3 y. C- B0 G! nDecision taken at the : ~9 Y. S4 F1 V40th meeting 2003 # A) J, u* Y Y6 fQuestion:: m) n* u( i5 n. X' q2 m9 I
For protection of users and service persons from transients and voltage surges, what are the appropriate ]5 x$ }+ P6 \$ r% \/ e
requirements between the following points for ITE connected to an external antenna: 3 `' `& U. o5 ~5 T(a) antenna connection and Primary circuits?) T. \1 Z8 e3 N7 R
(b) antenna connection and SELV circuits when the antenna cabling is coax?# Y# _3 E; Z+ B$ J. Q
(c) Antenna connection and SELV circuits when the antenna cabling is unshielded twisted pair# Y$ {# H% y- N# O9 v
(UTP)? . T3 @! n/ t3 L3 r! f/ z ^See attached diagram.3 u# {0 Z8 G- f0 B( s3 l; \
Decision: ' {& O; K6 _) mSince Clause 7 is in IEC 60950-1, but is not in IEC 60950 3rd Ed, all references are to IEC 60950-1 3 R: X' v6 a0 |3 D- P% lThe circuit connected to the antenna is classified in accordance with Sub-Clause 7.1 and subjected to the [ U) k& v# L, K. P/ c# k: Q) S
appropriate requirements per 7.1. Additionally,/ R0 A8 s4 u+ u! g; d
(a) Sub-clause 7.3.1 is applied between the external antenna connection (terminal) and Primary 3 X( e9 ]+ s4 _/ i5 m4 gcircuits. 1 v/ ^3 ~! \& g! r+ m" X7 `0 R' B(b) Sub-clause 7.2 is applied between the external antenna connection (terminal) and the SELV; ]+ X N% N, a8 Q6 @$ O1 a5 I
connector (RJ -45) when the antenna cabling is coax.! W. f4 ^8 _% X- L
(c) Sub-clause 7.2 is applied between the external antenna connection (terminal) and the SELV* M, q# B) N4 q
connector (RJ -45) when the antenna cabling is UTP.. e6 b# @: R4 c1 b: D/ z U
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[attach]77163[/attach] * v3 D2 p( @3 z8 Y0 ~
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