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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

) i2 G$ b3 x' s! |/ n 客户要求如下,如果哪家工厂可以做,请和我联系
9 |* I8 r B: ]6 v> The application that we have in mind is similar to others that we commonly
3 t. a& E: a8 V( m" n > have. If we were to pay for FCC approval, we would want to use the modem
, E" O6 W" x4 O7 x, R9 U/ h> units in all similar applications under the same approval number.
Q Q- K' m' ~5 b2 ?8 @ > Therefore, we would like to be able to configure the units to a specific
9 l* c& e/ I2 i, b! @: E > application. For the business that we do, this approach will yield more
k+ q- G# i$ U3 L9 ]> sales based on the same product and approval. We are interested in the
; h1 ] Z% `+ C+ w: P0 ^> following specifications:
, R9 @3 ]' c+ a A$ g>
2 X; c: g( E5 Y6 T > - 2 inputs at the Transmitter with three possibilities;
9 I. f0 C2 z+ ]1 Q4 ?/ X/ k> 2 analog
, Y9 F y/ u/ I! U> 2 digital
* k9 o. c, i+ o! v) A) _9 L& z# p$ w > 1 analog and 1 digital
9 x; v/ r5 G; o$ w! @ >
+ [# g+ r) \; @ > - 2 outputs at the Receiver with three possibilities to match inputs
$ }8 O& Q+ A2 T1 m; I( [ >
: v: K- L5 q; i1 W8 p7 x2 n > - Ability to configure/define analog Transmitter input ranges through
; F# g# q6 Z1 ^" L* Y > simple programming method to correspond with full-range analog Receiver
; r+ ]- ]0 {, A7 G> outputs (0 - full voltage).
3 A8 W9 R o% {( j" |( Y+ n>
6 h. ?& j4 G4 Z2 b5 M, W. e! A> - Ability to configure and set sample rates for the inputs.
6 E- K) F$ a; `4 B/ P5 k >
6 {) X- a. J) L, Z6 u+ v4 d> - Digital output on Transmitter that turns on during the sampling period.
2 ?* ^5 J0 n' {+ s0 w# y X. q >
8 q) r3 R0 w: A' o D5 n > - Ability to configure a power saving Sleep Mode in the Transmitter by
% \9 _, F9 O# F& N: M1 v' Z8 W> both software control and input hardware control.
* j* o. `# v' h2 I& q9 f- a# N9 D>
4 T8 n0 m% l5 Q" U/ Q7 h; b> In order to configure the units, we would need a way to make the
) G( N1 G& P3 q> settings. This would preferably be from a computer terminal so that
. A, J" `, R& m > configurations can be saved or easily duplicated for production volumes.
9 C( `: l7 q/ k- {8 o7 w: P$ o > The units should be small and compact with shielding, and able to mount
8 P3 [! s1 s( _4 I" z, ^; x* }> to a printed circuit board with header connector.
5 ?/ x+ s7 h; i; i9 \, C* I" ? >
6 R# _" U7 B* _3 T2 L > At this time, we are interested in samples of a pair of modems that
2 n" n2 }6 l' M6 i> might be similar to this proposed system. We do not expect that you
9 V4 O# q: ]1 _0 d> provide all of these specifications at this time. I can describe our
5 x' m# Z0 p" }' N > immediate application needs in the next email if this project is of
- i# h: t& G$ A. K, ?: A$ o; x* o > interest to you. Perhaps you can make the samples by those
2 R! D2 F+ D1 Q0 e* `! ~, T4 ~> specifications. This will allow us to test your radios before we move
% u* j4 H: D. K> forward. We are interested in your 900MHz radio to start.
/ h! @, l. _/ \* ]4 }6 b
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