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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

3 T9 c. q, s q X 客户要求如下,如果哪家工厂可以做,请和我联系
# }- y- x& o4 D% S) u& J > The application that we have in mind is similar to others that we commonly
" m9 l) Z$ n7 @$ z6 u# F, X3 l2 s' W> have. If we were to pay for FCC approval, we would want to use the modem
$ m$ L# z; R6 \5 {> units in all similar applications under the same approval number.
: C/ H- [, ~8 e: p2 y > Therefore, we would like to be able to configure the units to a specific
) z; y7 P- p# s& b$ t! w0 c> application. For the business that we do, this approach will yield more
2 q+ p3 G& m3 T0 I+ ^9 L> sales based on the same product and approval. We are interested in the
5 _: l3 ?4 L/ F; C! q/ u> following specifications:
" B# e( x% \0 l9 d) g( e>
1 u! F( U: S- m: [4 V9 Z8 j; B> - 2 inputs at the Transmitter with three possibilities;
( S D4 |, n0 X0 U9 U > 2 analog
" x# j/ Q0 H( W/ h2 H> 2 digital
% x4 g. ?) K) y! k > 1 analog and 1 digital
9 G3 r+ u6 f$ n6 U) o/ m! M8 t0 J >
8 d, N" {0 n, |> - 2 outputs at the Receiver with three possibilities to match inputs
( j" D- I, g7 m: O4 v2 `6 k+ q( O& H>
; z. ~* A8 ^; x7 V/ @ > - Ability to configure/define analog Transmitter input ranges through
2 U( B' L, C# [7 G, w! H: |> simple programming method to correspond with full-range analog Receiver
$ q. o8 b3 D; K > outputs (0 - full voltage).
+ I E! r N6 Q3 p8 \6 G& l9 R3 ~5 m2 B" [ >
2 s: U6 v" w* m# D) u5 n > - Ability to configure and set sample rates for the inputs.
; M. H! c+ }4 s1 ~1 A K9 } V >
* _; T4 H1 E; f. C* Y> - Digital output on Transmitter that turns on during the sampling period.
% G& a7 D" g$ i' W. f% N, j- E. h4 k, d>
( }: \8 r& i/ _; A% k+ N) u > - Ability to configure a power saving Sleep Mode in the Transmitter by
+ q# a1 M# i% Q" s& f4 U5 t( | > both software control and input hardware control.
, r" ^$ Z/ ]+ f5 Q g' E >
0 H: g+ E/ n- [6 U > In order to configure the units, we would need a way to make the
# K* j1 q( t8 G > settings. This would preferably be from a computer terminal so that
& r' p S r* V( M> configurations can be saved or easily duplicated for production volumes.
; o4 o5 U+ p$ k: P1 b7 o. q. g > The units should be small and compact with shielding, and able to mount
; s- n7 B, O! ?, z9 f- a > to a printed circuit board with header connector.
: r+ N! B6 f8 T) |5 X8 @" w v>
! U: H/ n7 @6 _4 n> At this time, we are interested in samples of a pair of modems that
Y0 B7 v# o: p& j1 e6 g3 b/ [> might be similar to this proposed system. We do not expect that you
1 a0 P( o# j7 r Q/ k" l7 J1 N > provide all of these specifications at this time. I can describe our
) k! T2 w6 g+ P" i> immediate application needs in the next email if this project is of
: i" ?$ j7 U V/ o5 \ > interest to you. Perhaps you can make the samples by those
4 T; D4 m7 b) \: m. x' x5 f> specifications. This will allow us to test your radios before we move
7 r3 A, j* S8 d! F! H> forward. We are interested in your 900MHz radio to start.
4 A5 |* d6 d, {8 R
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