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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

% r# F- _1 p2 h1 P7 ] 客户要求如下,如果哪家工厂可以做,请和我联系
: B+ ^% S! Q6 b > The application that we have in mind is similar to others that we commonly
$ g1 B& X. T, V2 i/ j > have. If we were to pay for FCC approval, we would want to use the modem
1 P- A N. c! H$ e0 z> units in all similar applications under the same approval number.
" }1 s5 R$ w3 d2 `) b% I4 x% ~' [ > Therefore, we would like to be able to configure the units to a specific
: r) _1 {6 ^; G4 p0 U3 P z > application. For the business that we do, this approach will yield more
1 i" \" `! X8 @2 G4 M> sales based on the same product and approval. We are interested in the
3 p/ f$ }- O, h2 Y) `% v5 i8 i$ E > following specifications:
, I2 t: c0 w; Z& u; W d5 Y>
1 m- v7 M9 T$ A: {- W7 \# t+ Y% f> - 2 inputs at the Transmitter with three possibilities;
9 {+ `' Z3 g6 m6 M$ ~9 z' n* W0 }> 2 analog
P. j/ n T2 `$ B. L" [5 W8 A0 z3 F9 c3 ?, Y> 2 digital
8 L( i- }! d+ P, `1 U! l > 1 analog and 1 digital
( P0 o# h. B) i' |1 g >
% A5 u! @1 m/ e8 n6 M* ]0 F > - 2 outputs at the Receiver with three possibilities to match inputs
% z) _' C5 p) b" `+ g) w >
d% r1 N: }1 `/ u* o M> - Ability to configure/define analog Transmitter input ranges through
6 T2 G. c+ l7 q> simple programming method to correspond with full-range analog Receiver
9 Y4 {1 O" E4 w; i> outputs (0 - full voltage).
, {. s! @2 B4 ] >
2 K. k0 l! K8 @) y- h) \> - Ability to configure and set sample rates for the inputs.
; N- w' H9 {6 C/ G6 U>
/ w) m4 H4 Z( @2 u8 E5 @ > - Digital output on Transmitter that turns on during the sampling period.
* @! y" ]5 o0 P>
7 P4 {6 B' B! [! E' X/ s> - Ability to configure a power saving Sleep Mode in the Transmitter by
/ h2 m$ E5 F% Z$ O> both software control and input hardware control.
, {* ~* `( Z$ K >
2 U+ Y4 ]+ y8 }0 `; f/ f, x> In order to configure the units, we would need a way to make the
+ r- `3 ?$ ], J4 N L9 M7 S% M. ] > settings. This would preferably be from a computer terminal so that
" q _/ R4 ^: u! ] A6 ^ > configurations can be saved or easily duplicated for production volumes.
2 J" Q! |$ T5 ]4 K# A> The units should be small and compact with shielding, and able to mount
$ x4 h, Z# H5 v% I, [$ r4 B/ P g > to a printed circuit board with header connector.
3 ?& R" K- y0 a: j: f2 {# u >
/ u5 N" L# B o- z. J+ } > At this time, we are interested in samples of a pair of modems that
: T/ |7 B: G" } G> might be similar to this proposed system. We do not expect that you
/ h: d" D7 j- e8 Q7 X > provide all of these specifications at this time. I can describe our
& s% o& c# V/ F8 a8 O > immediate application needs in the next email if this project is of
" X# w, z2 J- [* F2 ^> interest to you. Perhaps you can make the samples by those
: W3 _) {, S6 F6 m> specifications. This will allow us to test your radios before we move
# z; C0 a" b/ |; ?' n; T, U> forward. We are interested in your 900MHz radio to start.
" P+ Y+ i9 X# B9 H. E0 n
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