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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

; C$ S. A8 T' b% C 客户要求如下,如果哪家工厂可以做,请和我联系
8 f: X* N& W- p' s. \% P* b' S- n8 ^> The application that we have in mind is similar to others that we commonly
4 n' ^& K+ ^, ^4 B$ j> have. If we were to pay for FCC approval, we would want to use the modem
& [9 r5 h* S$ u0 U > units in all similar applications under the same approval number.
3 {' e. G) @5 C, {) O9 ^+ q> Therefore, we would like to be able to configure the units to a specific
( a! V2 S8 X; X: m" x* e > application. For the business that we do, this approach will yield more
+ \6 z7 K j ?) {4 J> sales based on the same product and approval. We are interested in the
0 Y- @% \" ?/ ?. q> following specifications:
, h! O5 S# \* X0 h>
6 l/ C$ m0 O* k H* ?9 n2 a > - 2 inputs at the Transmitter with three possibilities;
) e) {# b; E7 I( K/ C! g > 2 analog
6 g+ J; Y% y3 q a& Z& a/ q> 2 digital
2 q5 d) M1 q9 Z" c1 [, w; v) R > 1 analog and 1 digital
/ K7 m/ N0 U2 q. ]) x% e, L3 H>
4 Z, e) f) g* f> - 2 outputs at the Receiver with three possibilities to match inputs
. g6 N% q5 [3 ]1 j/ l# ~5 Q4 Y >
7 d8 l$ v9 }8 A7 s% U- I& ^> - Ability to configure/define analog Transmitter input ranges through
' W2 Q( V- J# J > simple programming method to correspond with full-range analog Receiver
" w& J2 v% i$ U1 }6 E> outputs (0 - full voltage).
. F6 R4 X( a' f) o) F( k >
' H6 z" i- N; y* F m& A > - Ability to configure and set sample rates for the inputs.
1 Z' ^4 I$ }' c5 I# H* r >
) l* I) g# S. d: g7 E+ ~: K> - Digital output on Transmitter that turns on during the sampling period.
6 ]2 M% a9 S5 h) r, \ >
5 B! }- N7 ^' t: b4 | > - Ability to configure a power saving Sleep Mode in the Transmitter by
+ r# f3 g; N; c7 O6 e& | > both software control and input hardware control.
* v, N/ K4 _* i4 K8 X>
' G6 P; S0 d9 m% p> In order to configure the units, we would need a way to make the
9 I8 Q* [# T( S6 X, E! T$ f1 }8 A> settings. This would preferably be from a computer terminal so that
( Z+ z8 }, E- p. a* k6 [ > configurations can be saved or easily duplicated for production volumes.
+ p1 J) i5 ^: Y8 S1 y0 ~- P# Y; f R> The units should be small and compact with shielding, and able to mount
# Y& H! c' ^3 r M4 q# ?5 m+ i > to a printed circuit board with header connector.
, H `' n r/ D9 B: F6 J>
$ w0 @6 J, A' K( Y' P> At this time, we are interested in samples of a pair of modems that
8 \9 c1 }: U$ l% u, n' d- I> might be similar to this proposed system. We do not expect that you
, n. g& C# i* g ]! g> provide all of these specifications at this time. I can describe our
# C( O9 j+ g$ w. ?) I> immediate application needs in the next email if this project is of
- U9 e8 H3 f) t; T: Y3 }& g > interest to you. Perhaps you can make the samples by those
6 P0 n* p9 Z( D4 i> specifications. This will allow us to test your radios before we move
2 _/ Z0 S* k; d. y9 K& t L) U- ^> forward. We are interested in your 900MHz radio to start.
3 x [, M" K; v* c
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