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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

) J' y* o: K. U) o8 ] 客户要求如下,如果哪家工厂可以做,请和我联系
& r& [, e A1 M0 A3 T/ Y4 W* N0 v> The application that we have in mind is similar to others that we commonly
6 V% {, U) L) O" E; D- ~. K7 B> have. If we were to pay for FCC approval, we would want to use the modem
/ A0 `4 S% b5 D5 C* O( c% h1 ~> units in all similar applications under the same approval number.
2 e' e, E% ~; q* Q" } C* N/ z! @+ t > Therefore, we would like to be able to configure the units to a specific
' T* d2 P. O3 O: u5 }; G' [> application. For the business that we do, this approach will yield more
9 o! |* e1 X2 ^2 h: E/ H > sales based on the same product and approval. We are interested in the
% L& V; m, L- @- `, J> following specifications:
& k1 @2 _! S- u>
# H* ?, E7 o' G: E! ] > - 2 inputs at the Transmitter with three possibilities;
+ d$ h A b! L9 C7 X! ?" r > 2 analog
* a! v. `8 h: m+ Y> 2 digital
1 D: d2 {/ p# [- a% y. r& Z> 1 analog and 1 digital
* Y( x" @0 K% h; e# \>
$ k1 b8 C2 j0 W& U" @7 b> - 2 outputs at the Receiver with three possibilities to match inputs
0 h7 x3 X4 W4 U4 T>
& M0 f1 w* }3 K5 Z4 W> - Ability to configure/define analog Transmitter input ranges through
7 V) B% r- p: B" E2 y > simple programming method to correspond with full-range analog Receiver
( V: d. C' I4 i5 R3 F > outputs (0 - full voltage).
9 S: j+ _" ^6 ]9 T9 q >
: x2 y' ]3 o; Q# H1 B> - Ability to configure and set sample rates for the inputs.
, g; I) \( Y* v: q" @) O >
$ B; a6 H9 a" s> - Digital output on Transmitter that turns on during the sampling period.
& D4 _ ]/ l' u>
" ]8 O6 J/ n1 Y* O; d1 ] v> - Ability to configure a power saving Sleep Mode in the Transmitter by
\0 I& c3 w# D( l6 Y; H > both software control and input hardware control.
; Z9 o; {2 l7 n4 H2 D2 d- s>
! j/ @) q) Z% y* r > In order to configure the units, we would need a way to make the
& X* I8 [2 z+ R9 f4 t7 ?> settings. This would preferably be from a computer terminal so that
- _7 q! k# r/ d> configurations can be saved or easily duplicated for production volumes.
( k0 p1 k, v' v" j> The units should be small and compact with shielding, and able to mount
' A" m, p e y1 G4 B) n> to a printed circuit board with header connector.
2 l' Z' o' E1 t( t, L4 B >
: _$ w" T c3 t9 O& Q > At this time, we are interested in samples of a pair of modems that
, W/ V9 n- E5 P. ^. |3 _2 ^0 z' S > might be similar to this proposed system. We do not expect that you
9 b! |+ F& {$ ]: b* G: |3 C( n > provide all of these specifications at this time. I can describe our
5 C( j* j( O T5 C# x8 G" p > immediate application needs in the next email if this project is of
5 H! V. D, s! \6 @9 C* P; C5 Y2 S> interest to you. Perhaps you can make the samples by those
5 k0 ?! b% e4 [) m > specifications. This will allow us to test your radios before we move
9 D0 ^. v; v5 V> forward. We are interested in your 900MHz radio to start.
; ]' J6 a8 N7 A8 Y0 ` f
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