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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

& K% c* I# d3 J7 K/ _& b客户要求如下,如果哪家工厂可以做,请和我联系
; `5 U2 A8 @7 f8 e& e > The application that we have in mind is similar to others that we commonly
3 l! ^" W7 t& J, w1 N" V8 V> have. If we were to pay for FCC approval, we would want to use the modem
2 U7 }" G/ z; c& w: S$ [% j > units in all similar applications under the same approval number.
& O5 B0 _$ w- \0 D! |' K1 q, h> Therefore, we would like to be able to configure the units to a specific
2 L' _/ ?) q3 s& ~0 I1 ` > application. For the business that we do, this approach will yield more
) }) j: E" d) m2 M) o> sales based on the same product and approval. We are interested in the
4 e, }- N, F9 S > following specifications:
% K+ J1 ~, B4 |& a: J) ^; m9 C >
* h) f$ a; g3 g z `9 X> - 2 inputs at the Transmitter with three possibilities;
) X8 D2 d9 e) c) n4 G: ^3 D8 A> 2 analog
# `% O& j* t2 A0 e! \% V8 [; j> 2 digital
1 O) U% L: W4 @4 n3 K7 m2 Q/ `. @ > 1 analog and 1 digital
& E! c1 ]8 K, W4 i$ J5 `>
- l8 s) p% w% R; H > - 2 outputs at the Receiver with three possibilities to match inputs
. W4 s9 l5 j: q1 O: [. c* r>
6 z1 n# B# g: l > - Ability to configure/define analog Transmitter input ranges through
5 e. D* c; I9 [! P# \+ |. g! T* f$ N > simple programming method to correspond with full-range analog Receiver
7 I( X+ {$ q _6 p+ {0 D> outputs (0 - full voltage).
$ {: [& E0 \; P/ B2 I>
, `% t* c% G; y a# R' K! j> - Ability to configure and set sample rates for the inputs.
. I* r7 U! l. [% q0 o( K j>
/ T0 |4 p" x5 v0 j# H. j1 {> - Digital output on Transmitter that turns on during the sampling period.
" l( ^3 R! I' N" s8 D>
- w" W& F+ H7 ]" [( i- V! l/ \ > - Ability to configure a power saving Sleep Mode in the Transmitter by
: `! }; Z4 K. E7 a) L) X> both software control and input hardware control.
9 U( H% W& K* p5 P" ]3 Q >
( v1 m" U) }- u> In order to configure the units, we would need a way to make the
5 y' f( F2 z3 r4 }; a; g7 ?> settings. This would preferably be from a computer terminal so that
# s3 C/ K9 W$ h7 q5 d6 O) R5 n> configurations can be saved or easily duplicated for production volumes.
3 |' v, i4 J |& G0 q> The units should be small and compact with shielding, and able to mount
! r% {. D9 t+ D- N0 h > to a printed circuit board with header connector.
& |: }4 V+ ?3 d) F>
j9 }9 G" X; y6 p9 w* ~+ T. g> At this time, we are interested in samples of a pair of modems that
' w& t8 `4 Y' A+ d9 K> might be similar to this proposed system. We do not expect that you
@, ^) P' @2 h3 [& j > provide all of these specifications at this time. I can describe our
* w* A" P9 r4 |> immediate application needs in the next email if this project is of
% b8 Z& w# `7 x8 M4 z, n8 m4 G4 s > interest to you. Perhaps you can make the samples by those
4 _3 W) a! Y r9 V- M > specifications. This will allow us to test your radios before we move
% C; }3 g: c. A+ s! K# |> forward. We are interested in your 900MHz radio to start.
. m* `3 F5 g: r# ^" X5 ~' y
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