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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

* O* e4 F# O0 h# T. w2 s4 g6 J 客户要求如下,如果哪家工厂可以做,请和我联系
' i' J. j) T7 c7 N5 L > The application that we have in mind is similar to others that we commonly
' s2 t$ S2 ^. \2 A+ b+ P > have. If we were to pay for FCC approval, we would want to use the modem
) T$ B( n% h0 b y5 K# [ > units in all similar applications under the same approval number.
+ x' s9 N( m0 p, S- C+ |- R. k$ r > Therefore, we would like to be able to configure the units to a specific
8 O% x) \+ P9 H" W, m/ N" {> application. For the business that we do, this approach will yield more
! X% P* R, H- `8 O E > sales based on the same product and approval. We are interested in the
}3 L6 c- g; D0 U > following specifications:
( k* t0 Y& t, {" i>
1 e9 K& g/ _5 ~3 K# ? > - 2 inputs at the Transmitter with three possibilities;
$ y# o( S9 h5 s# ] > 2 analog
* W g: i* m5 O+ g z > 2 digital
. O, U7 \! Y) d5 m> 1 analog and 1 digital
5 s1 ?7 K8 P8 e( s$ F( j >
3 {% P- @: X! ^2 r7 g+ i! J" E/ U+ w9 z > - 2 outputs at the Receiver with three possibilities to match inputs
% |; W5 Y/ M/ w% V6 x: ] >
; u1 `1 h" v/ m, L > - Ability to configure/define analog Transmitter input ranges through
3 k7 u* N! M+ M d5 \& e- Q4 \* M > simple programming method to correspond with full-range analog Receiver
0 J2 ]) p! V/ F; I2 `: |( @8 l > outputs (0 - full voltage).
6 B! D' a1 G8 D7 k4 z>
. o, X: {; q$ Q" X1 Q > - Ability to configure and set sample rates for the inputs.
6 w' l: r4 ]# \5 w>
|0 t' s. J! ]( q. W: D& E+ H > - Digital output on Transmitter that turns on during the sampling period.
6 {7 p* W8 O& X>
( x( @. s0 H2 @. V. V) E# b, f> - Ability to configure a power saving Sleep Mode in the Transmitter by
# q; t0 v+ |' O" ^, C > both software control and input hardware control.
% R7 U. E: ] l# E2 Y" O. p3 |>
& `1 n' I8 M ~- J1 g$ h > In order to configure the units, we would need a way to make the
% n( O( }8 e$ X. S1 U, }( e( H> settings. This would preferably be from a computer terminal so that
9 i- e# R7 O" S: U+ x, q> configurations can be saved or easily duplicated for production volumes.
+ B( m3 t5 C( W4 N> The units should be small and compact with shielding, and able to mount
% E8 A# D3 x6 d% f1 R! Q- D6 J > to a printed circuit board with header connector.
% k; d( A( ]: m2 G2 z5 M>
& ]6 Z) Y5 N# e+ g$ { > At this time, we are interested in samples of a pair of modems that
( V! P* G0 X: F/ p1 }8 O3 ^> might be similar to this proposed system. We do not expect that you
- q# E% i0 g% r5 T! z9 n( k8 F# S& ~> provide all of these specifications at this time. I can describe our
# _% q7 N+ U6 p5 i+ u > immediate application needs in the next email if this project is of
; V+ h; Y; I, K) Q( s > interest to you. Perhaps you can make the samples by those
7 E- e7 g- z! K> specifications. This will allow us to test your radios before we move
6 G9 ~- o: i5 G4 @9 D> forward. We are interested in your 900MHz radio to start.
% g& k: W! D, X$ Q) b
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