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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

2 d$ \* {, x0 B4 x; u- x3 | 客户要求如下,如果哪家工厂可以做,请和我联系
! E! j, a& S+ F> The application that we have in mind is similar to others that we commonly
) W$ Y7 L, G% t1 G# ^ o$ S/ z$ ^& J0 ]> have. If we were to pay for FCC approval, we would want to use the modem
8 R9 z; L: z9 S/ m' e* M, {( \) z > units in all similar applications under the same approval number.
( K o1 R X% _6 v$ D u> Therefore, we would like to be able to configure the units to a specific
8 L( P5 o1 [! a3 l > application. For the business that we do, this approach will yield more
6 ~ Z+ h* }: Y > sales based on the same product and approval. We are interested in the
* S1 M, g5 Q$ ~4 P) { > following specifications:
" e8 m+ k( L5 v$ [. u >
) K% V. p5 w9 x& p' ^8 I% K> - 2 inputs at the Transmitter with three possibilities;
6 i6 ?7 J% P5 t+ G> 2 analog
j; c1 C# v- t2 H3 a; y4 i& q* r# ]4 y> 2 digital
% m, [' {3 J) l > 1 analog and 1 digital
+ W: w; B8 W u) \ >
" j+ f4 \% G H7 c# ~0 T> - 2 outputs at the Receiver with three possibilities to match inputs
/ ^5 b) |- D4 x2 k! Z>
* D1 r& @3 x5 ` > - Ability to configure/define analog Transmitter input ranges through
N, S! k7 O' x* Y! B( U, c> simple programming method to correspond with full-range analog Receiver
0 _* ]1 y* O( x- r% o0 h; `* v) J> outputs (0 - full voltage).
, D1 d4 }6 P+ w. t, [. ? >
: q2 H2 \' f, e8 B, D > - Ability to configure and set sample rates for the inputs.
6 K0 @! w0 J2 o: j2 `0 ^$ K. a>
& h4 q. i* f5 _6 i> - Digital output on Transmitter that turns on during the sampling period.
% B& {- \! [# i3 G- o; b>
N8 ?0 X% `8 \- B> - Ability to configure a power saving Sleep Mode in the Transmitter by
) K/ k+ P3 E* W > both software control and input hardware control.
5 A" a) A) E* }5 z# Y>
" f, k+ L, Y5 O* O3 e* C) s k > In order to configure the units, we would need a way to make the
# d# M5 W: M, ]+ h5 @% ?> settings. This would preferably be from a computer terminal so that
" h/ G$ D) a- F6 g- K% K5 Z) g > configurations can be saved or easily duplicated for production volumes.
5 o9 a: J1 d$ A5 k6 f5 N> The units should be small and compact with shielding, and able to mount
; i3 L3 P- f# H$ r# D& m8 { > to a printed circuit board with header connector.
" |" E: E! C% i' e, x' E>
" E8 B8 f2 H" e5 }$ ^8 i; h1 W > At this time, we are interested in samples of a pair of modems that
1 W. g6 M3 H6 |7 V* m1 d > might be similar to this proposed system. We do not expect that you
4 C& g; e$ [4 c6 g0 c > provide all of these specifications at this time. I can describe our
& ^2 W0 B9 ~/ \# q > immediate application needs in the next email if this project is of
6 B0 }( T |/ j) _6 S0 e$ Y; h* d8 x > interest to you. Perhaps you can make the samples by those
$ ~# Q3 m3 {( {$ v5 _3 z& b > specifications. This will allow us to test your radios before we move
/ q% X3 L$ m7 u: k$ }* k > forward. We are interested in your 900MHz radio to start.
9 @0 s/ n. B' m# V
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