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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

& }7 ]4 s( |; j% z3 W# G/ J 客户要求如下,如果哪家工厂可以做,请和我联系
# G% \1 x5 Z$ s- G> The application that we have in mind is similar to others that we commonly
) d/ W3 B1 ]7 e& ^7 S! C > have. If we were to pay for FCC approval, we would want to use the modem
5 _6 ~4 ]2 S- s# r1 [& | > units in all similar applications under the same approval number.
7 _) r" O$ `' w1 \# \4 E! ^ > Therefore, we would like to be able to configure the units to a specific
# ~6 y4 _3 V7 o" s& D! R> application. For the business that we do, this approach will yield more
: k# v" j9 a: c2 v. m" D8 Y > sales based on the same product and approval. We are interested in the
) j! O( y2 }4 ]> following specifications:
/ R3 k3 L4 I8 {% t>
; p' q9 ^1 E0 O3 M& }* z> - 2 inputs at the Transmitter with three possibilities;
# {. p* }% c3 E9 z > 2 analog
8 |, l# ^1 M2 U. y2 m8 b) { > 2 digital
" v1 t" l! d) x( G > 1 analog and 1 digital
e+ V+ B/ H$ i C, U >
- K. n" X1 M5 I1 _! q8 Y6 p2 G> - 2 outputs at the Receiver with three possibilities to match inputs
G. s8 g. }) U( {- Q4 r >
) z8 q& y% t( l7 B" B> - Ability to configure/define analog Transmitter input ranges through
5 a8 @5 F; Q$ j6 r7 P: o2 c1 V" D > simple programming method to correspond with full-range analog Receiver
, Q. {2 ^1 M$ |/ S, e* i* Z > outputs (0 - full voltage).
: W9 r" s6 y. B: B >
A- m2 _. s) N: K! L; `5 w2 ^+ l> - Ability to configure and set sample rates for the inputs.
& f9 j9 c$ t9 u, |" o* o5 v( I>
2 \0 |$ U5 ^" q: `2 k> - Digital output on Transmitter that turns on during the sampling period.
% |* I, S- e; u5 X>
# d/ A0 Z' ^9 m > - Ability to configure a power saving Sleep Mode in the Transmitter by
o3 n! b3 K I! B9 E! A > both software control and input hardware control.
0 {$ z3 S) A! s>
" w; g* w, m# s > In order to configure the units, we would need a way to make the
9 G! e: z z9 h& ^) Z> settings. This would preferably be from a computer terminal so that
1 b' J) ?$ H8 l) A, K> configurations can be saved or easily duplicated for production volumes.
' e' w. g* o$ H* _ > The units should be small and compact with shielding, and able to mount
" N$ E& Y0 [$ `9 _4 g) P# m" ~ > to a printed circuit board with header connector.
' |! S. z! m; S$ I" x>
% i- I- y" Q( P. O0 _> At this time, we are interested in samples of a pair of modems that
1 w7 ~: Q3 t' l6 `! i g > might be similar to this proposed system. We do not expect that you
. Y6 B0 X( X9 T+ ^ x) J+ ?> provide all of these specifications at this time. I can describe our
5 @5 s% M; L2 D: k) S) K7 M> immediate application needs in the next email if this project is of
2 `6 E! K3 \% G! P1 f> interest to you. Perhaps you can make the samples by those
! ~; ?2 h- j- I( X5 f. @> specifications. This will allow us to test your radios before we move
9 h9 |7 d! y$ D- k8 S5 E1 I > forward. We are interested in your 900MHz radio to start.
% n" U @3 ~+ A2 M- P2 B- X
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