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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

' _/ H7 ^& r" z: U( Z7 h' S% a客户要求如下,如果哪家工厂可以做,请和我联系
+ p7 v# f2 S4 `> The application that we have in mind is similar to others that we commonly
/ M" J: \$ N! o9 j7 d > have. If we were to pay for FCC approval, we would want to use the modem
+ r4 w" b4 n+ J$ @# j( W > units in all similar applications under the same approval number.
6 s: J. @1 B& H9 `0 U& l Y> Therefore, we would like to be able to configure the units to a specific
* _; t: Q! {1 `: t! L, P7 Z4 B > application. For the business that we do, this approach will yield more
1 S; L6 L9 w. `, t > sales based on the same product and approval. We are interested in the
4 o$ c ^8 X& p. [1 {> following specifications:
$ d& Z. A5 Q5 ^ >
+ j$ ]# H: c5 }) Z> - 2 inputs at the Transmitter with three possibilities;
- ^8 Q# k+ H5 F3 s> 2 analog
4 ` A5 \" N; [! @) y8 F > 2 digital
B0 _5 w: b7 k" G, Y9 p7 r > 1 analog and 1 digital
. a3 o" X" l7 ^& R>
2 h/ w( @& D. u9 V s; ] > - 2 outputs at the Receiver with three possibilities to match inputs
% P% x2 N6 N3 W( z# s >
( X0 z/ t' b9 D! h! @2 E> - Ability to configure/define analog Transmitter input ranges through
}7 j. F2 G9 B& L> simple programming method to correspond with full-range analog Receiver
8 O1 S+ u9 ?4 S; ]3 A5 x8 m$ ] > outputs (0 - full voltage).
7 {/ L# F* t0 A. c. x" o>
" e$ ~8 J8 ]" |* i6 b> - Ability to configure and set sample rates for the inputs.
/ n$ K- n3 D9 e3 a2 E>
0 [) B6 } w5 N' q! h. u7 g7 f> - Digital output on Transmitter that turns on during the sampling period.
8 [% V5 W7 |8 v- s9 R5 b >
- ]) F9 z5 M7 J6 B* w> - Ability to configure a power saving Sleep Mode in the Transmitter by
3 x8 I. M" M$ g/ _: s> both software control and input hardware control.
; v- d" r6 {6 o z9 s >
* c0 U' Q% e4 Q V ?8 c> In order to configure the units, we would need a way to make the
0 B4 Z. e" f& J% Z> settings. This would preferably be from a computer terminal so that
$ i; {+ q. b8 k9 ~: A4 W/ v > configurations can be saved or easily duplicated for production volumes.
0 b ^) I, n4 h: p A > The units should be small and compact with shielding, and able to mount
* y6 u$ p' {" Y* [- i' P > to a printed circuit board with header connector.
- B2 w! O q' K0 O" i. @5 r$ N4 t>
7 `: U5 T( o: a0 A. x> At this time, we are interested in samples of a pair of modems that
8 l }* |1 a! Y7 f* l2 m, u* o( v6 o> might be similar to this proposed system. We do not expect that you
5 a+ D- I+ p6 q6 q0 ~; P+ o > provide all of these specifications at this time. I can describe our
! W7 W+ A- V* \# y6 J r0 k> immediate application needs in the next email if this project is of
5 F- N# n% O A+ Z8 V( ?! ~> interest to you. Perhaps you can make the samples by those
& R; `+ T6 a; y$ v6 V8 a> specifications. This will allow us to test your radios before we move
# z+ v1 ?/ S( J- U: i( E5 Y> forward. We are interested in your 900MHz radio to start.
& s8 x2 Z* P: s( t3 [4 o
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