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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

$ y# p# P: d) g# Y- a( ]$ i1 R 客户要求如下,如果哪家工厂可以做,请和我联系
, k P, U h" W; W% g> The application that we have in mind is similar to others that we commonly
- `4 ]' I; d/ e2 _& m0 d+ G > have. If we were to pay for FCC approval, we would want to use the modem
2 j' B' g. W3 w- _5 R T* P7 w > units in all similar applications under the same approval number.
9 ]7 l; {; F5 q* R% x0 b4 D; C> Therefore, we would like to be able to configure the units to a specific
: M# f& z4 Z9 J7 c9 |/ a3 S8 r: d > application. For the business that we do, this approach will yield more
1 U5 `) Z6 C* ]> sales based on the same product and approval. We are interested in the
) I, n: q. g, f9 m2 W% [/ u> following specifications:
( X" N' Z3 T- B. a$ o0 k3 t6 P>
+ p3 W3 Z5 V9 L. N> - 2 inputs at the Transmitter with three possibilities;
! v5 L$ D7 T& G- |5 q9 Q > 2 analog
% u# R+ D* _4 Q7 x > 2 digital
- F/ q& V5 G" ]# l0 Z$ z! F > 1 analog and 1 digital
8 @! _. U, o8 n: j& z) J>
7 D% m, l5 m( M& o > - 2 outputs at the Receiver with three possibilities to match inputs
: w5 W! C3 z. T" G6 e# F>
( U, i% q0 N( \( O/ X> - Ability to configure/define analog Transmitter input ranges through
6 l" r W6 p4 Z* Z' j> simple programming method to correspond with full-range analog Receiver
t ^/ b6 O2 t7 |$ U. E > outputs (0 - full voltage).
; w' q1 T9 V1 {+ v4 E' w# a' g >
1 _& O7 K. L8 T > - Ability to configure and set sample rates for the inputs.
7 C- I9 o# D, R% g) c3 k >
% p6 U- b. y; z( q > - Digital output on Transmitter that turns on during the sampling period.
" V$ p) w% O, Q* @>
2 G1 c$ ]: k% U1 t5 y> - Ability to configure a power saving Sleep Mode in the Transmitter by
! m3 ]( v! e6 {; @) I" h k> both software control and input hardware control.
, `1 g3 m9 C# Q* \1 h >
* V7 ]; j; y$ e, Z0 l > In order to configure the units, we would need a way to make the
% J& a+ K1 M) I0 a: c+ W8 B$ ~ > settings. This would preferably be from a computer terminal so that
7 p7 ?, w% Z, @ > configurations can be saved or easily duplicated for production volumes.
/ B8 i! ^0 |" x8 K9 @0 q, T a/ F > The units should be small and compact with shielding, and able to mount
, L7 h7 p2 d9 X> to a printed circuit board with header connector.
( R+ ]0 P5 F K, [. l8 B>
9 n& M/ _$ U* i6 @+ |2 n > At this time, we are interested in samples of a pair of modems that
$ G8 o2 }: O T' K% B> might be similar to this proposed system. We do not expect that you
. ?3 J* k( O" P' P9 u > provide all of these specifications at this time. I can describe our
1 `# G0 J) O& ?4 p> immediate application needs in the next email if this project is of
: f s+ f, t. |' z/ w! Z9 O > interest to you. Perhaps you can make the samples by those
9 q; Q- D1 w) P, H > specifications. This will allow us to test your radios before we move
+ z$ c# f5 a" x, B( Q( L> forward. We are interested in your 900MHz radio to start.
! j% {/ u5 }1 T% \8 G9 s# x
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