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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

9 a9 T' U- h! W& u: S 客户要求如下,如果哪家工厂可以做,请和我联系
: n L7 `) ~3 K" x> The application that we have in mind is similar to others that we commonly
% |/ I) M- o3 R9 w! X; m' n; {7 C > have. If we were to pay for FCC approval, we would want to use the modem
1 U% D i+ _. v, ]> units in all similar applications under the same approval number.
$ U' {6 v8 Q2 Y) w$ d$ \( v4 a > Therefore, we would like to be able to configure the units to a specific
. M4 r I" ^; B. D: K; J9 E: E > application. For the business that we do, this approach will yield more
$ h3 [/ x% ~- i0 b2 Z2 U> sales based on the same product and approval. We are interested in the
! b5 T" I- a& m r! I > following specifications:
5 }! I2 ~% s" L: w" P( F>
9 v. h& o( T7 I2 _2 t7 t > - 2 inputs at the Transmitter with three possibilities;
4 a N: v% k# a+ L# ~ > 2 analog
( V- F# ~% R, s, B6 }0 E+ q( {4 t> 2 digital
; s. W6 |- B% ]8 U/ a9 r# r> 1 analog and 1 digital
- d' v) d1 |5 K) u" \ |; a6 H7 G. b >
3 Q$ s, ^1 s* O" \! L2 c( }% I > - 2 outputs at the Receiver with three possibilities to match inputs
V7 {& c: g3 n( ~# W) F: b>
. R) ?% y y$ m1 v > - Ability to configure/define analog Transmitter input ranges through
, r5 R9 h$ r, `* }* N > simple programming method to correspond with full-range analog Receiver
* C$ e( B: b2 S2 v7 k- e> outputs (0 - full voltage).
, F7 e: e/ [! D" [) w6 Y>
% t) s) R+ `9 \+ R0 j' I> - Ability to configure and set sample rates for the inputs.
9 X) x5 O5 @) j$ t >
% Z' {8 }4 [8 k2 n: D" F2 e" @, c> - Digital output on Transmitter that turns on during the sampling period.
6 Z8 z7 v! o* G( y( l>
0 O: R( ^: L7 v- j > - Ability to configure a power saving Sleep Mode in the Transmitter by
0 T7 w. P3 @6 S. I4 ^- Z* `* u > both software control and input hardware control.
' H) a- s6 b5 p5 Q>
% y8 F6 K0 a/ _ > In order to configure the units, we would need a way to make the
3 V! o) W" Z0 B- ? > settings. This would preferably be from a computer terminal so that
' Y+ l+ P/ T" r& h3 C> configurations can be saved or easily duplicated for production volumes.
* l* l- |7 u. J7 S> The units should be small and compact with shielding, and able to mount
# W* ^$ K: Y8 a! |# `4 p& h> to a printed circuit board with header connector.
, K* o% A X& o >
5 W7 r. l+ k! k > At this time, we are interested in samples of a pair of modems that
+ S% }9 u' \3 z! Q > might be similar to this proposed system. We do not expect that you
( Q4 P9 G+ u$ ?> provide all of these specifications at this time. I can describe our
6 a O" D [: V) p6 `+ T/ y> immediate application needs in the next email if this project is of
0 ?& @& y7 B) u9 [6 ~- c8 z6 J( J> interest to you. Perhaps you can make the samples by those
3 A C/ }& U9 c4 Y, o) i \1 F U > specifications. This will allow us to test your radios before we move
+ N3 r; s! R( s1 r, u$ } > forward. We are interested in your 900MHz radio to start.
) I( ]9 R# x" g* {' w5 X
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