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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

: X9 v: q( y& c7 Z: Q- R$ F客户要求如下,如果哪家工厂可以做,请和我联系
B% M- F: J- w8 n% d, l9 s> The application that we have in mind is similar to others that we commonly
! _5 z; q# ~" ]# `5 W! I) Q% D > have. If we were to pay for FCC approval, we would want to use the modem
4 T7 ]$ J# o: g/ u> units in all similar applications under the same approval number.
, h/ K5 Y6 b" n6 ?- Q3 l& U. j( _> Therefore, we would like to be able to configure the units to a specific
$ j0 A: }3 V4 _5 l+ }% | Q > application. For the business that we do, this approach will yield more
" c! Q) t6 W, S H* I( G > sales based on the same product and approval. We are interested in the
6 b4 h, ^/ @( M5 L- d0 [% g5 l5 f> following specifications:
3 s& ^# n+ Y7 `9 q >
) Y/ ~+ T8 ]/ }! ?+ x. F1 X: C* L9 c> - 2 inputs at the Transmitter with three possibilities;
2 S# [& J9 x. b1 k- f > 2 analog
" t$ d3 u9 x5 J, ]* V> 2 digital
* i" C4 I) H0 D3 k5 N9 H' A> 1 analog and 1 digital
9 r7 D" ^# X+ b( R>
( n# ?" d9 E: X9 p% J0 b > - 2 outputs at the Receiver with three possibilities to match inputs
5 q( w! X, H- X4 \% }; _( N >
- w8 z" \$ G, ~) Y> - Ability to configure/define analog Transmitter input ranges through
% g& f- P0 u+ D% G# {* J' |> simple programming method to correspond with full-range analog Receiver
- s' C6 A- r5 c- V# q6 Y5 U/ z1 E> outputs (0 - full voltage).
1 Q- l0 u2 s2 Y: g& s( C >
; i' C+ a3 _+ W> - Ability to configure and set sample rates for the inputs.
: v* {0 M, |+ w>
, b) \' ^ o. i" C* j6 b' I> - Digital output on Transmitter that turns on during the sampling period.
" Y! H) b9 B% W. x( e >
C& ?" N! `) @! M > - Ability to configure a power saving Sleep Mode in the Transmitter by
7 l& V% A4 @2 n! t+ f6 _8 e' a > both software control and input hardware control.
0 I/ _$ z0 ?+ o/ G! I+ S* P5 m >
' Y" c* j/ x. R+ ` > In order to configure the units, we would need a way to make the
- B2 K2 g, y& B/ h x > settings. This would preferably be from a computer terminal so that
2 }9 R# N& t& h2 V8 x. K7 s > configurations can be saved or easily duplicated for production volumes.
) j+ E% u) m4 c7 l > The units should be small and compact with shielding, and able to mount
9 b# l4 C1 X( {3 P) A# Y7 R& w> to a printed circuit board with header connector.
9 } F1 e( S9 ] >
: p5 h) ~" _' S, q6 v8 F3 |> At this time, we are interested in samples of a pair of modems that
4 J/ A/ O- Y; k7 U > might be similar to this proposed system. We do not expect that you
7 N! G3 p( F [, @ > provide all of these specifications at this time. I can describe our
A# } r+ a; w > immediate application needs in the next email if this project is of
5 D3 k" s8 p8 e > interest to you. Perhaps you can make the samples by those
2 k6 z; Q$ j+ c, j- N# I, f > specifications. This will allow us to test your radios before we move
0 ^( z- K/ R, ]9 w9 v> forward. We are interested in your 900MHz radio to start.
- c* M0 f2 L% Z. ~7 W0 w" ^! R7 c
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