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[寻求合作]音频传输模块,做出口

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安防幼儿园学生

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发表于 2007-5-27 20:29:37 | 显示全部楼层 |阅读模式

$ w) k% L' I1 b, W5 b( R 客户要求如下,如果哪家工厂可以做,请和我联系
9 A ]3 x5 F" X6 [$ q6 K > The application that we have in mind is similar to others that we commonly
3 Z* N7 j6 ]3 ^% ~) c > have. If we were to pay for FCC approval, we would want to use the modem
6 k( ?% q3 j. {+ i0 J. w/ S; ?9 O' U. C > units in all similar applications under the same approval number.
- D7 q# ^7 V# [( l8 y> Therefore, we would like to be able to configure the units to a specific
8 o L+ ] ?2 y" ?# y" n3 m6 P> application. For the business that we do, this approach will yield more
9 E$ E+ k6 U8 r) H& J# u > sales based on the same product and approval. We are interested in the
( N1 @& x: m# [6 `) d2 u> following specifications:
- s' ~ n8 D( z c8 ^" s >
, a, Z/ Q7 i# I; ^, U > - 2 inputs at the Transmitter with three possibilities;
) E/ f( t1 L8 l9 Y> 2 analog
6 a5 @% G$ f. W5 ~7 n > 2 digital
/ @) j# ]0 h; D0 r3 \ > 1 analog and 1 digital
7 X$ E- A: d! d" d>
" a* o5 o. ?! K9 { > - 2 outputs at the Receiver with three possibilities to match inputs
. I+ s' V7 Y6 t2 x3 y>
) g! i# }+ \$ ~6 s: e; k> - Ability to configure/define analog Transmitter input ranges through
+ J; v8 ?5 D" F4 o* B- K, ^> simple programming method to correspond with full-range analog Receiver
) m9 k% ], E# ~0 h5 z, _ > outputs (0 - full voltage).
3 ^6 v( c% O! Z- E) u >
( I% R: D0 j0 G* I7 P > - Ability to configure and set sample rates for the inputs.
& P: n% |! {# ^>
5 X( I9 z: a% g& y+ R> - Digital output on Transmitter that turns on during the sampling period.
5 a: W; E, ~- e, i y7 Y >
, H# n: P+ F8 o6 j: g > - Ability to configure a power saving Sleep Mode in the Transmitter by
' L2 \" P! L8 n. ?" Q" a. x" C> both software control and input hardware control.
- {4 [% V3 B: G# y7 {% { >
% u: A5 B0 Q# ]0 l5 C x8 R > In order to configure the units, we would need a way to make the
0 ^( @1 m+ M* _ p6 C> settings. This would preferably be from a computer terminal so that
& Z: @! ^) G1 z1 X/ i* f> configurations can be saved or easily duplicated for production volumes.
4 h$ P6 y8 m0 ]> The units should be small and compact with shielding, and able to mount
- ~/ i8 d& d4 ?9 s( Y/ r( x3 C > to a printed circuit board with header connector.
1 k a" U( k+ L: _3 W+ N>
1 h( U/ Q: Q3 |2 J- |> At this time, we are interested in samples of a pair of modems that
5 i) v$ j& s2 _: L7 y> might be similar to this proposed system. We do not expect that you
% t: U3 S* T& \# w> provide all of these specifications at this time. I can describe our
* W9 K; w$ o! |) {> immediate application needs in the next email if this project is of
1 Z; ~$ Y% u) C5 h9 s* I @, C > interest to you. Perhaps you can make the samples by those
/ j8 S" q" p& ?& G > specifications. This will allow us to test your radios before we move
- p5 e6 q' B5 t; { ]> forward. We are interested in your 900MHz radio to start.
+ S' i# k0 c) W- t) c
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