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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+ M" K; j9 [ 客户要求如下,如果哪家工厂可以做,请和我联系
6 C; f+ n! g- j1 Z> The application that we have in mind is similar to others that we commonly
4 K+ r4 x% k1 J; n4 I> have. If we were to pay for FCC approval, we would want to use the modem
& r) g" i; c) U9 @> units in all similar applications under the same approval number.
) }1 c" C; P8 k( R& M/ z > Therefore, we would like to be able to configure the units to a specific
0 E. p+ a" a' ~0 J% h > application. For the business that we do, this approach will yield more
7 O# {9 c5 R4 z! n% s* G% H> sales based on the same product and approval. We are interested in the
8 Z! o! O) {4 \ z7 S4 u7 i > following specifications:
) k6 i9 `$ h/ ~0 h >
0 F, B* C/ f+ i) u: S> - 2 inputs at the Transmitter with three possibilities;
1 v$ b5 B6 d- {9 C) E& o$ l> 2 analog
0 }, |- Z$ x" F> 2 digital
0 ~+ o( P; B n$ F a> 1 analog and 1 digital
" K* L/ \6 d A. c >
$ e& A" ~' y- x1 ]+ d1 y> - 2 outputs at the Receiver with three possibilities to match inputs
) v- `; L9 C) B* D>
3 Q6 @" ?1 g- A2 Y$ G> - Ability to configure/define analog Transmitter input ranges through
% Z O M+ W8 M, C" p% H5 L > simple programming method to correspond with full-range analog Receiver
8 j. _9 u- i7 i6 p6 h$ `> outputs (0 - full voltage).
/ O" ?1 `0 |* ^* u$ |% s6 t$ ~>
5 e- I" D; {! F! [" s3 N- F% {4 h > - Ability to configure and set sample rates for the inputs.
9 u3 u4 L, T5 Z>
) z0 G0 p: p4 e5 a: y) S6 z% r > - Digital output on Transmitter that turns on during the sampling period.
8 D0 m4 e% u+ q8 g7 }+ S>
6 d, j; {+ g* @' t6 S2 ]> - Ability to configure a power saving Sleep Mode in the Transmitter by
7 F3 F% C! J6 P+ u2 K1 a) z > both software control and input hardware control.
d% u% C8 i# ^ u/ \/ l>
5 f0 R$ I/ U4 `% v R3 R> In order to configure the units, we would need a way to make the
5 `$ k, O1 }7 H5 P. X. T' m> settings. This would preferably be from a computer terminal so that
. v8 k! r, r' g+ z > configurations can be saved or easily duplicated for production volumes.
$ h+ a0 Y2 W9 g) @& R, @, u1 {> The units should be small and compact with shielding, and able to mount
, r$ F' p4 |# N2 Y9 x8 n `! `1 b > to a printed circuit board with header connector.
( `; ^$ a) W: u$ A >
, T! w$ Y* @( n2 Y > At this time, we are interested in samples of a pair of modems that
0 Z* I1 }& n2 P! n > might be similar to this proposed system. We do not expect that you
7 T' C) M. b7 r& |( C+ s> provide all of these specifications at this time. I can describe our
' ~8 w- I: M6 f& K+ v8 f+ Z, u > immediate application needs in the next email if this project is of
4 M3 I- y Y5 Y > interest to you. Perhaps you can make the samples by those
4 Z, w; n0 l* ? > specifications. This will allow us to test your radios before we move
1 L8 W" O7 p- m8 @ > forward. We are interested in your 900MHz radio to start.
' `4 Q F3 e" e
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