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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

c- p* m$ q& r0 D- G# P8 S 客户要求如下,如果哪家工厂可以做,请和我联系
* j: e( v0 }' G* x& T, e/ I> The application that we have in mind is similar to others that we commonly
+ f- n, M! G& S6 ~+ J! Y* a > have. If we were to pay for FCC approval, we would want to use the modem
5 C. o: K4 S, [4 p> units in all similar applications under the same approval number.
( R: `+ y9 y2 ~, f" Z v U) r > Therefore, we would like to be able to configure the units to a specific
& w; _; W* D$ B% u> application. For the business that we do, this approach will yield more
- f: o2 P- ^( ^0 d3 x( P; }) a > sales based on the same product and approval. We are interested in the
8 U" b* a% t3 K7 d( B7 r5 j> following specifications:
" K3 D$ e$ X$ E8 C1 ?& ? |>
) E* w3 i- P' d. R' f6 y > - 2 inputs at the Transmitter with three possibilities;
0 z0 k7 M: F0 k- z K: F* s8 _( L6 r > 2 analog
0 F# b, e# J' L6 G0 o/ |> 2 digital
; D, L$ Q; Y1 E. J {$ Y, r/ C> 1 analog and 1 digital
+ K$ R8 ^& j: y( B. P% H, q >
9 s' m* N" D @6 s0 ]* c > - 2 outputs at the Receiver with three possibilities to match inputs
6 I# q' [+ r& X% A |" C: ?( f>
% r5 q3 l4 p3 f: t, o8 H> - Ability to configure/define analog Transmitter input ranges through
1 y7 Q3 Q* f U* D% W! [+ u2 z> simple programming method to correspond with full-range analog Receiver
% f9 R$ u" f. T" e4 M1 n4 G. }. E! ?> outputs (0 - full voltage).
9 Q9 j# W( U! \, I, |1 Y>
# L/ D0 w$ t9 n# X* m- m > - Ability to configure and set sample rates for the inputs.
" S% O; {. H7 s9 p6 |- } >
! a- t3 {6 A I o K* Z) F > - Digital output on Transmitter that turns on during the sampling period.
! V& L$ O; l$ _$ P: k1 m' \>
8 I+ k2 i3 n9 x# C5 j > - Ability to configure a power saving Sleep Mode in the Transmitter by
) I# z' U N y& S% \0 Y> both software control and input hardware control.
5 K! U2 K) Z9 q>
& T5 h7 }5 g/ g5 m3 o > In order to configure the units, we would need a way to make the
! Z7 n$ V9 t5 ]+ {$ _ > settings. This would preferably be from a computer terminal so that
5 c F B& A& g' U9 N> configurations can be saved or easily duplicated for production volumes.
+ `& u6 r4 p0 W) ~8 D. G& ~ > The units should be small and compact with shielding, and able to mount
6 E) `4 B X( f9 v, {1 i0 C$ N > to a printed circuit board with header connector.
d% i2 x8 G6 l! q9 J; `* W8 N>
6 A9 B1 e4 H* ~5 h > At this time, we are interested in samples of a pair of modems that
* r( ` }& g- X4 u > might be similar to this proposed system. We do not expect that you
( Z- c O- m# `6 j6 P > provide all of these specifications at this time. I can describe our
5 e. s8 c& H, U% G9 F8 v> immediate application needs in the next email if this project is of
. |8 H" }5 q; V" u' |# | > interest to you. Perhaps you can make the samples by those
- D9 G0 g. \0 P" {% E2 k2 z- u' f> specifications. This will allow us to test your radios before we move
; P1 ~8 @: w7 p3 c+ E$ {6 S > forward. We are interested in your 900MHz radio to start.
0 k! \$ r! ?! c; s9 t
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