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|  DSH 4451 |5 ~/ N5 o0 V5 @9 u/ t( Z
/ d4 D- I6 I& T: e3 a# ~0 l
| Protection of users1 Z0 z, U* U- x5 z
| 7
9 B6 b7 M; o( T7 u9 r: C8 L | 60950-1(ed.1)
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# {% E! v" L3 k3 gStandard:$ M( f5 e2 Z) k7 W
IEC 60950-1:2000, 1st ed,
. g% Z: D9 ^3 L2 T. N) b0 n" _# NSub clause:' o5 U p4 z8 x& S0 f
7* v: ~* ~$ u; ` b# y( x
Sheet No.- w( ?7 u& c; I& T" B+ @
445
) }0 U0 `( s9 X, L, K8 y1 z8 {Subject:
; Q; n/ n# f3 [2 P2 X! j$ `Protection of users0 j$ l, H, @9 i' i* d
Key words: I" {5 [( F1 B T6 H) _1 a$ _
Antenna, voltage surge test
1 O8 u& ^8 H5 T' g* vDecision taken at the& c. D" C& N( K" \; j# Y
40th meeting 2003' U" K/ ~4 G" s3 Z! a" Y
Question:
E; A$ G6 Q# y1 Z9 O( m* _For protection of users and service persons from transients and voltage surges, what are the appropriate
8 q3 T; [4 P& urequirements between the following points for ITE connected to an external antenna:. I& P2 h7 }. q) L. |0 H& Y3 ?
(a) antenna connection and Primary circuits?
/ ^. o* \* P/ m3 n) a(b) antenna connection and SELV circuits when the antenna cabling is coax?
2 ]. Y( }' q3 a' `* B0 m5 ?(c) Antenna connection and SELV circuits when the antenna cabling is unshielded twisted pair3 q$ {& @( {0 }6 e1 b0 c$ w
(UTP)?; S# i0 U! m6 u7 p6 s; m3 U% @
See attached diagram.
I: E& s1 V) u! Q5 d9 ]3 bDecision:
! \# u1 H1 Q4 |( W1 Q: ~Since Clause 7 is in IEC 60950-1, but is not in IEC 60950 3rd Ed, all references are to IEC 60950-1& k$ m+ M7 z3 H }
The circuit connected to the antenna is classified in accordance with Sub-Clause 7.1 and subjected to the" l; i/ B _+ \ f) w& P- E# s
appropriate requirements per 7.1. Additionally,
* K3 Y& l5 @- P7 z/ c(a) Sub-clause 7.3.1 is applied between the external antenna connection (terminal) and Primary: [$ x; }. n% C8 S E/ m ^
circuits.6 n) n: J$ Z" L* ^- i+ a9 C
(b) Sub-clause 7.2 is applied between the external antenna connection (terminal) and the SELV
$ R0 [' j) E" j& xconnector (RJ -45) when the antenna cabling is coax.
2 S3 ~6 S4 \3 T7 i1 `) @1 q8 T* ^1 Y(c) Sub-clause 7.2 is applied between the external antenna connection (terminal) and the SELV
! Y6 V8 y: U W0 @0 iconnector (RJ -45) when the antenna cabling is UTP.
! Y! y$ l! o& M# U+ K1 [$ T T( [
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