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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

6 L* f& A) t2 k( r$ ]6 W客户要求如下,如果哪家工厂可以做,请和我联系
* H6 q* o( G* F+ Q > The application that we have in mind is similar to others that we commonly
- G" Q. C! H( ^# M* Y( C, c > have. If we were to pay for FCC approval, we would want to use the modem
1 J% z" b" t8 b, c# L0 j > units in all similar applications under the same approval number.
& c/ Z' G' E6 k6 N> Therefore, we would like to be able to configure the units to a specific
/ {9 Z, \7 R- C* ?2 h5 ?* r > application. For the business that we do, this approach will yield more
( w$ P' s/ k( }! Y; y> sales based on the same product and approval. We are interested in the
& s% d4 Z7 D) A2 E X# N5 Q> following specifications:
G m' U0 Q0 \5 A ?0 u; |8 t>
4 E9 N% j$ r4 \6 Q > - 2 inputs at the Transmitter with three possibilities;
+ B' W1 v+ ^1 x, H> 2 analog
3 o. M5 b- L9 r0 k8 d6 V > 2 digital
8 u! ^8 P* _1 B( a2 U" ~* [ > 1 analog and 1 digital
' ]+ D- c" N! ]1 @+ U >
9 k. N7 Q+ V; s' e> - 2 outputs at the Receiver with three possibilities to match inputs
A' J/ ~) i2 H>
7 G% z) p/ n- G5 ~# a> - Ability to configure/define analog Transmitter input ranges through
1 a' ^; e6 u) y& M) x> simple programming method to correspond with full-range analog Receiver
9 j( J! |+ s/ v7 P2 S$ t! Y> outputs (0 - full voltage).
+ _- X, j4 q* O$ }5 j>
: R' d; |$ [; [* b, x6 H > - Ability to configure and set sample rates for the inputs.
( [$ x6 c" R N, N. H>
' Z5 E8 ~2 R4 w# @7 W! D5 p- [> - Digital output on Transmitter that turns on during the sampling period.
7 p u# j: j% F >
. D; w4 }2 E" U- C+ w1 z& d > - Ability to configure a power saving Sleep Mode in the Transmitter by
) [. J/ o( {& M8 f; b5 @ > both software control and input hardware control.
; f& m$ J% ~3 @2 i: n" h >
' Q: m8 X* K: `) R > In order to configure the units, we would need a way to make the
. v: T9 c! H9 R6 x* f> settings. This would preferably be from a computer terminal so that
8 j1 i5 S( j9 ?$ H5 _, D, m > configurations can be saved or easily duplicated for production volumes.
' f+ x; k& w7 o/ @! f; m, O) ^ > The units should be small and compact with shielding, and able to mount
- [9 M& P4 l, v5 @# m > to a printed circuit board with header connector.
& ^$ o& X, h+ r: T6 p% A: j& r>
6 h3 C' Q5 r5 Y& Q> At this time, we are interested in samples of a pair of modems that
: r5 Z: ^: D Q1 m r | > might be similar to this proposed system. We do not expect that you
* X) V' | C Y% t> provide all of these specifications at this time. I can describe our
( j( Y. j) \) s" O; ~ > immediate application needs in the next email if this project is of
1 L1 i0 p* O# N0 w1 @ > interest to you. Perhaps you can make the samples by those
- x ~* l; i) \2 l8 F E> specifications. This will allow us to test your radios before we move
2 J2 |' X0 o( s+ X2 y8 l( T1 C > forward. We are interested in your 900MHz radio to start.
: a L2 s3 U Y! X$ q4 U7 S/ m" i. q
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