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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

* {4 l# k; [7 i6 H' u客户要求如下,如果哪家工厂可以做,请和我联系
7 `! o/ K/ I" V > The application that we have in mind is similar to others that we commonly
8 j" I6 T- k I. o7 U! ` }> have. If we were to pay for FCC approval, we would want to use the modem
8 a: {( q$ j3 L4 { > units in all similar applications under the same approval number.
$ \; ]3 `- u5 g! H9 H5 V4 W7 J > Therefore, we would like to be able to configure the units to a specific
0 N& W! U$ c; N > application. For the business that we do, this approach will yield more
! f) h$ ^# x+ y x9 u7 J- T > sales based on the same product and approval. We are interested in the
: P6 ]( u1 l9 w8 S3 a > following specifications:
: y8 J1 z( N: r6 g: v- s& h; g >
! k `2 D# w1 B! P% h# a8 W> - 2 inputs at the Transmitter with three possibilities;
: W& w6 J& [' G8 S0 c% g > 2 analog
0 Q F5 H+ O7 ]2 b) }> 2 digital
$ R$ k% @( B6 f, s' b: h5 n> 1 analog and 1 digital
x6 g% r2 N# h7 G+ H>
3 l7 [0 S* Q2 `' Y V- p- m/ K' o& J > - 2 outputs at the Receiver with three possibilities to match inputs
, _# V0 m; p* Q& W3 U6 c2 v/ ~! |! T>
) t' y! j- P' ^8 `> - Ability to configure/define analog Transmitter input ranges through
( |/ T' d7 b: m8 Y> simple programming method to correspond with full-range analog Receiver
7 i! n S2 ^' i8 t > outputs (0 - full voltage).
: a# @/ x4 B( a- D- w4 H>
+ ^- u% F# v5 J3 l: k) X> - Ability to configure and set sample rates for the inputs.
8 N' x2 f0 a( D >
x8 X, N; R2 V: |( z( Y > - Digital output on Transmitter that turns on during the sampling period.
2 |% L( `' L+ X( l& ~& Z >
3 G4 G# Q H7 m0 i, A; M, |# B> - Ability to configure a power saving Sleep Mode in the Transmitter by
: v6 h& b4 o* }4 } > both software control and input hardware control.
& H6 M! b$ G4 ?6 H8 J5 e" H) w: s( h>
" m4 P7 R/ t% K, c) r> In order to configure the units, we would need a way to make the
& z, Y/ q; ]- ~8 w > settings. This would preferably be from a computer terminal so that
4 M* k0 w n S# h. W" S7 a) M > configurations can be saved or easily duplicated for production volumes.
8 L# |, W# h: m& i0 s( ? > The units should be small and compact with shielding, and able to mount
+ k+ \3 ?& k7 |% _- F- p > to a printed circuit board with header connector.
# v3 P5 a1 P8 u! \: Q5 L >
- c, A! [4 C1 S0 d6 y. h" W9 N2 | > At this time, we are interested in samples of a pair of modems that
: l! C/ w6 \) L Y9 `6 y! l& {> might be similar to this proposed system. We do not expect that you
8 d3 Z* j3 L2 s* o1 Q" C% t > provide all of these specifications at this time. I can describe our
5 B* ]$ T( ?* O6 ~4 F& q > immediate application needs in the next email if this project is of
0 T2 T+ B, ]$ T: o @. n > interest to you. Perhaps you can make the samples by those
1 l* O/ s) R! R > specifications. This will allow us to test your radios before we move
9 n3 s+ k7 y# ]; T ^ > forward. We are interested in your 900MHz radio to start.
* s, k0 l( q! D# @: I; D
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