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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

$ _/ ]% E/ ]3 _" M% L. N 客户要求如下,如果哪家工厂可以做,请和我联系
1 u8 B/ F9 l* S/ V2 T2 A% N > The application that we have in mind is similar to others that we commonly
, [+ {. B, z7 Z > have. If we were to pay for FCC approval, we would want to use the modem
) A9 w' ]& o( ^& B0 t> units in all similar applications under the same approval number.
5 S& J: v9 s# x: |2 g> Therefore, we would like to be able to configure the units to a specific
" z: W7 V4 x8 s* m Y> application. For the business that we do, this approach will yield more
6 [, [+ b1 t0 V3 s) G$ G> sales based on the same product and approval. We are interested in the
" A8 R2 c& r2 T: u" M > following specifications:
1 d8 o2 y& i9 `, ] >
) w: B4 @/ A. E8 Z/ Y > - 2 inputs at the Transmitter with three possibilities;
; F; z7 i1 j8 _> 2 analog
/ d$ N# ~4 K( |& `# S/ t > 2 digital
. h7 o# {# D5 k) k8 U > 1 analog and 1 digital
" c/ X2 I4 \; M% H/ N>
4 D2 ~) w' e- O1 x7 z4 O > - 2 outputs at the Receiver with three possibilities to match inputs
+ _- |$ u8 l% G d>
: \% N; u5 ^" ]/ W' k > - Ability to configure/define analog Transmitter input ranges through
7 ]% {( j7 M2 A1 U. v0 M$ g( W> simple programming method to correspond with full-range analog Receiver
5 T% i2 k9 |) g i* ?4 n3 ?> outputs (0 - full voltage).
( ~+ ]' x& p, @5 X7 U% A>
7 n- M4 R, K4 Q& B: D> - Ability to configure and set sample rates for the inputs.
" E5 I( e: \" ^* |>
% w# x8 j( M8 w7 S7 J$ j9 M5 E+ f, Y > - Digital output on Transmitter that turns on during the sampling period.
& }( f Z( U% g) `) Z >
* z3 ^) X: Y$ [) i! e> - Ability to configure a power saving Sleep Mode in the Transmitter by
$ Z6 V) ^5 ?0 |6 T > both software control and input hardware control.
a' s) h: y! Y- n$ z% V- \>
* D0 F- j+ \5 x$ o) h9 @3 J& H- p7 S > In order to configure the units, we would need a way to make the
9 o- j$ l, A% b7 s0 ^2 m> settings. This would preferably be from a computer terminal so that
; J4 Q: P) c) V3 i0 K. Z> configurations can be saved or easily duplicated for production volumes.
. M! z% a" I3 d2 L& I- C > The units should be small and compact with shielding, and able to mount
9 M- Q% S2 ?; u8 o) a3 C6 N > to a printed circuit board with header connector.
0 i( q% r, N% \: D >
, b" c( C$ q0 [9 ?% t > At this time, we are interested in samples of a pair of modems that
1 d' C- D4 H: `* v- [/ N/ _+ g2 } > might be similar to this proposed system. We do not expect that you
9 s9 G m9 l' W% x8 s1 W1 W> provide all of these specifications at this time. I can describe our
* z( s& A- ]+ l* {9 B* ] > immediate application needs in the next email if this project is of
1 i& A; P( P5 L7 ^/ j9 Q! n7 S O > interest to you. Perhaps you can make the samples by those
8 C/ k- g% P" d& g! g! W9 H5 o> specifications. This will allow us to test your radios before we move
7 p" E" \! Y; ]0 Q > forward. We are interested in your 900MHz radio to start.
$ c' g& _$ q. Y7 m: Y
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