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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

* c( ^& ?8 v9 I1 [ 客户要求如下,如果哪家工厂可以做,请和我联系
8 j( ~! c4 o' k% B> The application that we have in mind is similar to others that we commonly
; M) q2 z5 ?0 d8 I# Y( Z > have. If we were to pay for FCC approval, we would want to use the modem
' Q6 H/ P7 F9 k> units in all similar applications under the same approval number.
2 ~; w3 E% W- z+ m. K* b> Therefore, we would like to be able to configure the units to a specific
% |+ s' _8 g$ Y& f @+ x& | > application. For the business that we do, this approach will yield more
1 Q# F4 d2 K8 N, X- i) B" }$ G> sales based on the same product and approval. We are interested in the
3 L3 l) d6 W7 N- |4 x# U+ c > following specifications:
$ o2 R4 X; Y7 i+ m2 _5 A; M! S >
l& E: @* X5 ^6 |> - 2 inputs at the Transmitter with three possibilities;
$ B7 Z; V) d. ]7 s& P5 F Y* _ > 2 analog
2 J( F3 Y/ {- E* a; ]> 2 digital
' O& m( V3 p( Q a x: }; p > 1 analog and 1 digital
) I: {' ^/ _4 H- n >
5 M5 ?' v1 a6 M- y- \& v > - 2 outputs at the Receiver with three possibilities to match inputs
4 d! F: `+ Q& W>
6 m7 S/ G' f: ]: g q$ ]% Q > - Ability to configure/define analog Transmitter input ranges through
! { D8 i6 G& @+ }" g' O0 Q8 U> simple programming method to correspond with full-range analog Receiver
6 F/ ]( ?' {. P* X! V( y' b> outputs (0 - full voltage).
. {# `8 {, P( M$ P( L1 i) Z >
9 u2 z, A! h \2 u0 N, R, @& W' Y > - Ability to configure and set sample rates for the inputs.
! w1 D; z1 B3 B0 J) k& P8 [$ f8 B>
/ M; n. r: k! t5 }, X! F7 X> - Digital output on Transmitter that turns on during the sampling period.
" X* _( O% n0 q& ?>
/ _# x$ m3 k+ h, @, F8 z; G! j! a/ E) V> - Ability to configure a power saving Sleep Mode in the Transmitter by
, `* | j+ ?( F. ^0 s( B" B" }& U> both software control and input hardware control.
/ t; {$ |' ?3 F5 F8 D >
6 r& e5 r/ H0 u3 |5 `/ X2 S> In order to configure the units, we would need a way to make the
4 w+ L% q& W$ R+ g> settings. This would preferably be from a computer terminal so that
- W1 r1 k) n8 u- }> configurations can be saved or easily duplicated for production volumes.
o) i9 b9 |9 _, R> The units should be small and compact with shielding, and able to mount
. n; k. G3 k) U> to a printed circuit board with header connector.
1 |; _/ H; d4 I' m; D. d, _/ k8 z>
2 I# ?. r5 [3 C: r" {8 G> At this time, we are interested in samples of a pair of modems that
# x: C, N' Z7 x+ ^: E' L8 n1 v > might be similar to this proposed system. We do not expect that you
% \6 g" k9 i+ ]4 j> provide all of these specifications at this time. I can describe our
9 Q; [5 b4 ?( E+ Z; Y" R > immediate application needs in the next email if this project is of
9 C8 ?' j {* S* g+ ?4 r& B5 q> interest to you. Perhaps you can make the samples by those
$ \1 ^$ P4 b% ]7 F, }& \ > specifications. This will allow us to test your radios before we move
( H- j; b9 K) Q8 y& n> forward. We are interested in your 900MHz radio to start.
4 i7 K# ~) y7 a
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