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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

- R5 S! S. W8 l8 J6 X; t3 H( ? 客户要求如下,如果哪家工厂可以做,请和我联系
( V+ z1 n- Z, {, W( u > The application that we have in mind is similar to others that we commonly
0 ^' b+ j5 s" q, F6 e" F0 e > have. If we were to pay for FCC approval, we would want to use the modem
9 z2 N% G+ K: C > units in all similar applications under the same approval number.
! n! C4 k. {) {$ u" v> Therefore, we would like to be able to configure the units to a specific
0 Y4 H0 o) b( i' F% [> application. For the business that we do, this approach will yield more
1 t1 q5 c3 E$ Q/ G$ ?* J > sales based on the same product and approval. We are interested in the
2 B& R3 j+ l E" {$ q9 U' s > following specifications:
: A- n& T' I( ^* O>
2 t% i; C- M! R. ]5 w0 B g, [; L> - 2 inputs at the Transmitter with three possibilities;
4 U0 j4 ~, x9 j7 Q > 2 analog
7 `0 {4 V% D7 R( l- w* j9 h, M> 2 digital
# Q* b* O/ B6 y! b0 [$ L. m > 1 analog and 1 digital
4 u' j) F7 k7 o) ]>
5 z' V; K( u6 k; [1 c% ^ > - 2 outputs at the Receiver with three possibilities to match inputs
" E7 Q. ~3 t: @. v. J >
( z" o, B2 G) q+ w" Q > - Ability to configure/define analog Transmitter input ranges through
' G; s3 t; Y( `0 c4 u7 {) F > simple programming method to correspond with full-range analog Receiver
6 Q# H/ z/ ?* e: ]. I > outputs (0 - full voltage).
7 c% Z/ f- g0 @, v+ I2 @4 @& o/ N >
. x1 H. n5 A, Q6 H( ^ > - Ability to configure and set sample rates for the inputs.
7 P( z. X' Q6 }3 ^ >
/ { N3 @& C# ?7 B8 k> - Digital output on Transmitter that turns on during the sampling period.
8 s7 X7 w% r+ h; v' ^5 ?2 n. C>
6 k! |2 a) ?( B7 P2 e5 r > - Ability to configure a power saving Sleep Mode in the Transmitter by
$ @1 `1 {5 v4 \7 J > both software control and input hardware control.
/ M+ R: m# J8 @$ g7 [, J >
3 I D9 ]9 B' R$ }5 ^5 R> In order to configure the units, we would need a way to make the
1 o* h2 ^" |1 u; S9 q4 b# w2 B > settings. This would preferably be from a computer terminal so that
. r5 J' V# J6 M- p3 o0 w> configurations can be saved or easily duplicated for production volumes.
; k0 a) J. D( t7 I7 i > The units should be small and compact with shielding, and able to mount
2 C1 P) @/ @9 `5 y8 a) z' w> to a printed circuit board with header connector.
+ \7 k: C3 u) B9 E >
' O' i4 P# B! v; n > At this time, we are interested in samples of a pair of modems that
4 s% f* v8 z. U. M4 `% s# | > might be similar to this proposed system. We do not expect that you
9 V) e+ t: M+ H( U+ t1 N, W$ ^ > provide all of these specifications at this time. I can describe our
! x+ i! T+ `1 m> immediate application needs in the next email if this project is of
% Y' {# {1 _9 m* G6 _1 Z> interest to you. Perhaps you can make the samples by those
' ^- N# j( d3 D, {: E; M > specifications. This will allow us to test your radios before we move
6 S/ ?+ p; f) ]# F0 c > forward. We are interested in your 900MHz radio to start.
: ? `- {- Q/ J
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