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引用第40楼barry于2007-07-26 09:20发表的 :
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ADAPTOR 适用于 Overvoltage category 2 ,
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" x# [# J0 M: nXDSL 不适用于电网的 Overvoltage category !!!
. R9 ]( @5 s* LA SECONDARY CIRCUIT derived from an AC MAINS SUPPLY will normally be Overvoltage Category I if
% d& H! B9 L/ vthe PRIMARY CIRCUIT is Overvoltage Category II. 5 g# N% _$ v9 L& T3 f
0 A/ T. d+ y4 e: V& pTransient overvoltage: : G7 L4 `% G6 L. H% X, A. v6 {& d
1 500 Vpeak if the circuit connected to the TELECOMMUNICATION NETWORK is a TNV-1 CIRCUIT i0 h- c$ H9 A2 z
or a TNV-3 CIRCUIT; and# p0 P+ F# Z$ U2 w b2 v! p
– 800 Vpeak if the circuit connected to the TELECOMMUNICATION NETWORK is an SELV CIRCUIT, D% z# I j) c _
or a TNV-2 CIRCUIT. |
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