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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

" h7 {1 P! }' J; r6 l 客户要求如下,如果哪家工厂可以做,请和我联系
6 e9 J& L8 X; B% a! C! \& ?$ y> The application that we have in mind is similar to others that we commonly
{; q( b4 t9 i$ O> have. If we were to pay for FCC approval, we would want to use the modem
5 I. V% s# T0 b! p1 Q' x* z > units in all similar applications under the same approval number.
) E( T4 X2 U& Q! C, x- D& e> Therefore, we would like to be able to configure the units to a specific
4 L% ]& Y4 M# { > application. For the business that we do, this approach will yield more
2 e( j, z$ Q/ [9 b1 U' L& ?8 G > sales based on the same product and approval. We are interested in the
4 \, a+ F3 T$ v! G3 I > following specifications:
* n% D: M' t8 L: m- y>
8 U, x1 \, z! l- d5 `3 | > - 2 inputs at the Transmitter with three possibilities;
( X& ]- F" J* w' J% M > 2 analog
. Z) h( `3 s. a9 @5 I0 J> 2 digital
5 b4 ^9 @2 l% F, V> 1 analog and 1 digital
; t, Q! ?2 k* ^) P Y* p* z5 } >
" o1 M3 g+ z. x> - 2 outputs at the Receiver with three possibilities to match inputs
2 B5 a7 y, Q% T4 c >
. [9 C4 u' x& d8 m R6 Y> - Ability to configure/define analog Transmitter input ranges through
" o; ?2 x# F& M1 R M5 P > simple programming method to correspond with full-range analog Receiver
9 d3 m9 r) |& M/ ]$ B; d> outputs (0 - full voltage).
- }* r* k) z. q8 P4 _0 H >
( h6 O0 b- r3 h0 u) ?0 x) ] > - Ability to configure and set sample rates for the inputs.
! B# t ]% O0 c3 w >
! ]/ n& Q$ S6 C> - Digital output on Transmitter that turns on during the sampling period.
) c* h0 X$ @) w0 M >
! I: Y4 e9 A; V ^/ ? > - Ability to configure a power saving Sleep Mode in the Transmitter by
' h" E% g+ r" p7 G3 L3 @* H- I > both software control and input hardware control.
: s$ t; r5 r$ l6 i: r& H>
" ?- m& F* V3 r2 \( i> In order to configure the units, we would need a way to make the
1 l9 U0 ~* x# p1 i* Q5 o) s. Y> settings. This would preferably be from a computer terminal so that
8 l9 U0 o. o8 g8 w > configurations can be saved or easily duplicated for production volumes.
( F f( P# A( `4 B) ] > The units should be small and compact with shielding, and able to mount
9 Z/ z c, P9 n& Y( r> to a printed circuit board with header connector.
@/ L1 b9 Q8 Q>
8 v0 K: O/ v7 c# X > At this time, we are interested in samples of a pair of modems that
' U) Y6 b) J& [" P, g9 j* {& d7 l# K> might be similar to this proposed system. We do not expect that you
3 i6 b% T: o$ C: [$ [0 d> provide all of these specifications at this time. I can describe our
% V& p4 a5 G9 t4 o5 b4 P+ g > immediate application needs in the next email if this project is of
$ m+ @3 l0 w: C> interest to you. Perhaps you can make the samples by those
4 W% N9 X, H4 X/ F$ n> specifications. This will allow us to test your radios before we move
' K6 X: b+ [( g6 y' _* W& l > forward. We are interested in your 900MHz radio to start.
6 D2 `; @ _8 h5 X7 M9 D1 R7 L4 ?
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