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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

4 q, q# L0 j/ \; ` D/ ?% n 客户要求如下,如果哪家工厂可以做,请和我联系
- R4 m# V" E9 x) }> The application that we have in mind is similar to others that we commonly
+ Q% r5 Y4 F) Y" s( m> have. If we were to pay for FCC approval, we would want to use the modem
D; W$ [; V3 K$ M; o1 V" f+ \ > units in all similar applications under the same approval number.
% V+ E# d) z! S5 x > Therefore, we would like to be able to configure the units to a specific
$ v& }8 Z( s8 c( ~+ D0 X* W& U > application. For the business that we do, this approach will yield more
/ r7 y U( F: r' G8 L2 U# ? > sales based on the same product and approval. We are interested in the
# `. L" J- }" l3 B% H > following specifications:
4 }: L/ M# R" r' Q>
, P& n5 ^6 G; j# @ g2 T> - 2 inputs at the Transmitter with three possibilities;
% {; {, B: W+ ]1 y& j > 2 analog
0 \: B C4 D0 G> 2 digital
% E" t: [+ R) w5 X6 T% v > 1 analog and 1 digital
6 L" K0 p) [ \" p3 B( f0 [. T>
8 ~; J+ X! z% R! W$ D- o. I8 M > - 2 outputs at the Receiver with three possibilities to match inputs
+ h$ Y* ?/ ]( N! y4 y# s>
/ y4 k, i9 [" i; p/ F3 H > - Ability to configure/define analog Transmitter input ranges through
( M5 i7 X: ?& Y- D) p6 i7 B% |8 y* d > simple programming method to correspond with full-range analog Receiver
1 l4 R8 q3 V; Q! u% `; Q" d1 ?& Z> outputs (0 - full voltage).
# Z0 o" ?. n) _4 y! \) Z6 ? >
) Y+ D% P# \" b) g4 |> - Ability to configure and set sample rates for the inputs.
' S) C7 U: z' W- Y >
% f& ?4 L$ T1 s> - Digital output on Transmitter that turns on during the sampling period.
6 W0 l- v p/ i& y>
+ O0 @, j- a6 c8 a > - Ability to configure a power saving Sleep Mode in the Transmitter by
- R9 J! r2 G( O, T- }+ C> both software control and input hardware control.
6 x$ G% M* S. K- ?" T# v8 t5 k >
; V7 i' r7 x1 d2 i+ Z$ h8 ~9 u" o1 r+ c/ P> In order to configure the units, we would need a way to make the
, l r0 x, ^3 ^( D' ^, m/ | W. o: R; E> settings. This would preferably be from a computer terminal so that
/ p5 d# r T! Y- @" y7 J > configurations can be saved or easily duplicated for production volumes.
- O' E+ P" @ u/ H# J> The units should be small and compact with shielding, and able to mount
3 z& y( O" L1 d U/ x> to a printed circuit board with header connector.
1 ~3 a3 J3 U9 ]2 ~) G >
6 w; y; K% k) v7 {> At this time, we are interested in samples of a pair of modems that
+ [" ?+ R3 d7 J8 T- K> might be similar to this proposed system. We do not expect that you
+ m# ]" \( P! C" Q; I1 A> provide all of these specifications at this time. I can describe our
( q" u' g, _4 [5 N> immediate application needs in the next email if this project is of
9 l) i- h' i6 Z% ?> interest to you. Perhaps you can make the samples by those
1 C" \! x7 E* a$ j# `2 a> specifications. This will allow us to test your radios before we move
+ x# ~9 S \) [4 i! d9 _: j, Y> forward. We are interested in your 900MHz radio to start.
9 g7 I' L8 Z) h% ?) j
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