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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

( a& f) ~. P* _) R0 @% b" k客户要求如下,如果哪家工厂可以做,请和我联系
8 X- W. D6 f6 e4 W" c > The application that we have in mind is similar to others that we commonly
: j, L0 F% ~9 Y/ C, W; Y > have. If we were to pay for FCC approval, we would want to use the modem
: D1 ~# h1 d3 F > units in all similar applications under the same approval number.
% n" H$ {, O$ E& i; k > Therefore, we would like to be able to configure the units to a specific
. k) w# ~. ?/ y# r> application. For the business that we do, this approach will yield more
: v' s5 S% @( j0 i! \> sales based on the same product and approval. We are interested in the
v* c t( R* l- q; J& K> following specifications:
' N: x, F+ c' p, @" y/ g8 ?# B>
! u* A' j. |; O: B% n1 l> - 2 inputs at the Transmitter with three possibilities;
1 }( H* q/ ]9 d1 j! C > 2 analog
4 w% V% e Q. K" y# a> 2 digital
6 ~8 W; Q% u( }0 p+ F > 1 analog and 1 digital
5 s) O- A0 r; t/ ]" b >
% e* f/ f6 `9 ` > - 2 outputs at the Receiver with three possibilities to match inputs
: c# M7 ~. J# `* q( g>
5 \6 Z' d7 P% q, ]5 U* w> - Ability to configure/define analog Transmitter input ranges through
: q3 F( ?4 G' j9 V; ^2 N3 ~> simple programming method to correspond with full-range analog Receiver
9 f: } R6 E: F> outputs (0 - full voltage).
8 o" M' X' m. n5 a8 f>
$ e4 T3 Z' I9 h% J. n- i > - Ability to configure and set sample rates for the inputs.
0 a3 k* m3 x1 J; d4 p2 r5 l>
( x3 L' T5 ^" A" f r/ ^/ ^ > - Digital output on Transmitter that turns on during the sampling period.
9 G" C8 b+ Y. m* G* { >
! i3 h5 ?1 u$ m5 I0 | > - Ability to configure a power saving Sleep Mode in the Transmitter by
/ a6 H% j9 E- J {. f2 m > both software control and input hardware control.
6 K+ T8 ?0 K. Y7 t- j" u) u >
6 w5 x; x0 b- P> In order to configure the units, we would need a way to make the
k! V! s$ ]. W* x n$ F$ x8 ^> settings. This would preferably be from a computer terminal so that
* C/ K; G* q9 {4 I> configurations can be saved or easily duplicated for production volumes.
7 n. G6 J& b# z$ v n( X5 b" Z! K> The units should be small and compact with shielding, and able to mount
; Y, u8 c. m) Z> to a printed circuit board with header connector.
. B# z% _/ D- h3 _4 Z >
$ g0 w! c; l1 R- ~ > At this time, we are interested in samples of a pair of modems that
) J- M" O0 y7 ? > might be similar to this proposed system. We do not expect that you
% ]# F+ _ \( q3 k2 c > provide all of these specifications at this time. I can describe our
0 x7 ?$ \6 p6 U# a> immediate application needs in the next email if this project is of
% M x, k% X, o/ c% @5 r8 G2 E > interest to you. Perhaps you can make the samples by those
( Z6 S8 l: }+ x2 |2 h > specifications. This will allow us to test your radios before we move
3 g( ]$ X& ~+ }" I2 a8 o> forward. We are interested in your 900MHz radio to start.
0 N6 S; n" ~, q1 W. E% L( N8 m& G
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