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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

* S- {: R F# Y$ F9 G9 l- i$ x客户要求如下,如果哪家工厂可以做,请和我联系
5 c) W# H$ L3 H' Z1 m5 B > The application that we have in mind is similar to others that we commonly
; p6 ^, j; n- c2 s; U% ] > have. If we were to pay for FCC approval, we would want to use the modem
) w7 O9 z5 Z( X! V2 N! z J> units in all similar applications under the same approval number.
1 x- X; r A0 ]: u > Therefore, we would like to be able to configure the units to a specific
- [7 j' U& J+ |! x/ T0 |> application. For the business that we do, this approach will yield more
9 G# q8 X: m1 C2 x! Y3 C> sales based on the same product and approval. We are interested in the
/ i, ]9 U0 Y7 d, h& Z3 K6 t; K" t! u > following specifications:
( J# m0 A( S# p8 r( j+ y& W; v4 Q >
; }" U! i2 e1 M > - 2 inputs at the Transmitter with three possibilities;
5 d3 x/ W1 D; W: B9 [9 M' @% k% n> 2 analog
1 n' V( v9 F3 ~9 L' H, `8 C9 J > 2 digital
, e8 E: W8 R& G > 1 analog and 1 digital
$ z: o& k4 r& h6 n0 O. x>
+ b( ]7 O/ w. X3 U9 Y > - 2 outputs at the Receiver with three possibilities to match inputs
; M! c/ R% m0 W& V3 ^>
1 C- p' j) N5 U( A > - Ability to configure/define analog Transmitter input ranges through
( M: `! h+ M1 y% e > simple programming method to correspond with full-range analog Receiver
& {% k; C- v4 G> outputs (0 - full voltage).
/ |5 _9 f8 }4 y! \ K >
/ P H9 x; ]8 j) W& \# G> - Ability to configure and set sample rates for the inputs.
7 G/ v6 L) M: V: U# g6 i>
, `& a4 {; E( Y( [> - Digital output on Transmitter that turns on during the sampling period.
1 M4 u3 K3 f) a- W: e, i >
1 v7 f) C: N* f j1 ?: v> - Ability to configure a power saving Sleep Mode in the Transmitter by
4 S( |- i- G& C" {4 ]0 M& B# z4 p& a > both software control and input hardware control.
5 | Y7 `0 S i y2 M0 k* D>
! B y/ B) H/ a) `, T0 G/ p> In order to configure the units, we would need a way to make the
1 {! [# T0 j2 @3 B* ^9 D9 Q( M# t> settings. This would preferably be from a computer terminal so that
" s, b9 E) h* L& z* ^/ E> configurations can be saved or easily duplicated for production volumes.
3 t& U, S# D( \& ~) a6 S& h> The units should be small and compact with shielding, and able to mount
. ]5 S% O" W, A" v( ^9 k> to a printed circuit board with header connector.
. F+ Q: _8 ~4 j) b >
5 ]! K6 C3 Q( p9 I" b' O0 U > At this time, we are interested in samples of a pair of modems that
: A, C8 W# H( C > might be similar to this proposed system. We do not expect that you
' t, V! Y/ |3 y% b9 p/ z> provide all of these specifications at this time. I can describe our
: ] ]/ A6 ^5 a0 s& J B> immediate application needs in the next email if this project is of
& b- Z% `9 c( [% D) Y7 e, K > interest to you. Perhaps you can make the samples by those
: n1 p# Q9 A0 S- r > specifications. This will allow us to test your radios before we move
6 X ^! N U& Y" W6 e4 R > forward. We are interested in your 900MHz radio to start.
' t+ [3 [4 x) ~+ _. L
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