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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

! t+ U4 M' i1 }5 j6 a 客户要求如下,如果哪家工厂可以做,请和我联系
5 ]4 D; ^8 y! m, K# | > The application that we have in mind is similar to others that we commonly
4 F# N& n0 E8 P> have. If we were to pay for FCC approval, we would want to use the modem
6 D8 H5 `, [ r" t7 F6 T i> units in all similar applications under the same approval number.
6 T0 y- N9 q' ^" s8 k> Therefore, we would like to be able to configure the units to a specific
& |# }: f& \% d > application. For the business that we do, this approach will yield more
- v7 j- W: j: ^- j2 H+ r/ x > sales based on the same product and approval. We are interested in the
+ X& a3 ^8 K) p& J* H' J& l5 c > following specifications:
5 p, p3 k9 k2 \% @' f7 e >
% A0 n' C* M$ N > - 2 inputs at the Transmitter with three possibilities;
2 a+ M2 Z( j; X* J4 G( u > 2 analog
! b0 i0 l1 ?; [1 _! t( r J+ ]+ Q* V3 X > 2 digital
/ L, M& h- N4 S# j* c > 1 analog and 1 digital
/ P2 Y) {6 B; ^& J# u6 E3 l8 O, C >
* S/ W [/ q% k > - 2 outputs at the Receiver with three possibilities to match inputs
5 s* |$ P1 K1 m; y& X6 h9 U. c >
' L9 W2 V- ]# C: r7 p e* [ > - Ability to configure/define analog Transmitter input ranges through
/ t6 @% W+ T! V4 q- R> simple programming method to correspond with full-range analog Receiver
- ?0 ]/ q3 W6 B0 E> outputs (0 - full voltage).
. h% ?" b6 n# O' U >
$ Z- ?7 A$ m& }% Q! a* Q> - Ability to configure and set sample rates for the inputs.
2 G* b/ {# x$ F- O2 F>
$ X. E; d- o. t) ]& | > - Digital output on Transmitter that turns on during the sampling period.
4 Q5 k R0 ]; u>
0 L4 e( U* O( u Z+ E) t5 v) `, W> - Ability to configure a power saving Sleep Mode in the Transmitter by
b* r# a5 G0 x > both software control and input hardware control.
% n' B# ?. l J >
' h7 L6 c/ ~5 j > In order to configure the units, we would need a way to make the
' b2 g, z' K% Q; j> settings. This would preferably be from a computer terminal so that
4 r) K* ^2 n( s8 D8 B > configurations can be saved or easily duplicated for production volumes.
8 ~+ R1 U, c' ~$ C9 J8 N > The units should be small and compact with shielding, and able to mount
9 {' f4 M8 v! |2 x# K/ h > to a printed circuit board with header connector.
1 N3 j6 a6 A6 t6 I4 o; M9 }+ {1 m, V) X>
' Z0 E E* H7 N _% i) U> At this time, we are interested in samples of a pair of modems that
, i0 r2 W5 f1 ]7 q; ^> might be similar to this proposed system. We do not expect that you
2 J( W8 A( J6 Z d2 e > provide all of these specifications at this time. I can describe our
! J) M* q! T( y> immediate application needs in the next email if this project is of
. [ p2 W, N0 @$ @. _0 q: R- p" @" G > interest to you. Perhaps you can make the samples by those
. `* A; w# r' n) }% v > specifications. This will allow us to test your radios before we move
7 o# u6 I5 ~8 u+ e0 |3 [# A/ Q> forward. We are interested in your 900MHz radio to start.
& R) p/ d% k8 m4 q9 Y/ O
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