" @; C% |4 M. h( ]Standard: IEC 60950 Ed. 2 Clause: 4.3.17 Sheet n. 290 7 o6 j; U! o2 i) j5 @Page 1(1) ! `7 b$ V. ?9 N- a( } _Subject: Miss-mating of connectors Key words: ( n; }1 E) K1 ]2 y- Modular + {1 m! ^; w9 ~) fconnector " q+ o, Z# ?! G0 a" Y% h* d0 Q# n# \- Miss-mating L$ c& Z6 R+ g& C0 v* H" sDecision n. 23/36 o, m* @) b \: @% N6 q, staken at 36th. ?& d/ q0 B' k6 G) Q% v
meeting/1999 ! X, o$ V* d! ~/ b: Y3 e( M" E. x: eQuestion:5 l. P$ P% c) I$ ~# Y
It is very common to use modular connectors (e.g. RJ-11, RJ-12, RJ-45), accessible to the& n! w" P9 } A ?, d- a
users, for a variety of transmission functions, both telecommunication and data.: z1 X1 n1 o1 z* T0 I( S/ O
Unfortunately, RJ-11 modular connectors easily mate with other configurations of modular 4 _& F+ b" x! _3 h9 A' s! Q% mconnectors: RJ-12, RJ-45. This sub-clause permits marking only for connectors accessible 3 r; o' R7 b% V% h3 Pto Service Personnel and, on the other hand, relying on configuration as a means of! r6 ^9 ]0 P( O( t) p' q4 ~
preventing miss-mating is unrealistic. 6 A) x. G' G- M x9 h" wHow shall these connectors be tested?. $ @$ p) t3 i9 F- \Decision:- ^# a% J7 d# z9 l
If there is a possibility of miss-mating of modular connectors (e.g. RJ-11, RJ-12 etc.) 6 `) p1 k* R/ J, C& F8 z+ X- U g) Raccessible for the user, tests have to be made to verify that the SELV limits remain.) G, d L+ V6 G- `! H6 _
If the voltage of the TNV-circuit is known this value is used, otherwise the test generator of : W3 }/ H; N, }6.2.1.3 (Figure 15A) is used for testing. (See also OSM-EE Decision 98/6) " b% O' o5 Z$ K& i* l5 j# I4 E. [) u
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DSH 290* G7 L6 B) @2 }