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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' h8 ~; Q/ W2 n1 w5 F 客户要求如下,如果哪家工厂可以做,请和我联系
7 n4 ~) G0 ~. x) ?# M> The application that we have in mind is similar to others that we commonly
+ s& _# b3 i! S* j > have. If we were to pay for FCC approval, we would want to use the modem
, S+ F+ c3 j" I# ~4 A/ @ > units in all similar applications under the same approval number.
+ B: p% \' w: W> Therefore, we would like to be able to configure the units to a specific
/ N+ U: a8 ^( l' e9 W4 {" ?> application. For the business that we do, this approach will yield more
% V1 R$ P& a( V9 b2 G. @> sales based on the same product and approval. We are interested in the
; b" ^, m# G1 U/ f! |. [> following specifications:
1 g: i4 J" ]! p" V, Y6 P! Y2 W/ L>
; p4 u. H- z }> - 2 inputs at the Transmitter with three possibilities;
; t* R2 e2 B/ R+ p > 2 analog
3 Y- T$ R- Q& U7 R > 2 digital
9 q. O" @& w/ c( d. q: A- t1 y > 1 analog and 1 digital
# A" r( {2 j/ b3 T) k8 T/ R>
3 L0 ~8 c. F0 g/ J4 \ > - 2 outputs at the Receiver with three possibilities to match inputs
2 d+ s$ }0 O9 o3 Y( A>
& O0 J2 Y7 {) l: r0 y> - Ability to configure/define analog Transmitter input ranges through
! @+ I% r- \' S" W3 a7 J, V> simple programming method to correspond with full-range analog Receiver
# z% c+ w: f' I( | > outputs (0 - full voltage).
% R& Q- @5 ^! r' o>
7 ^5 k1 o7 `0 V' i > - Ability to configure and set sample rates for the inputs.
( {( A% H& L* ?/ ^>
, N0 c$ K3 m- d2 S. b" O" {> - Digital output on Transmitter that turns on during the sampling period.
# z$ a8 @( Q, T1 t" [2 I>
9 k- _- K' G) H> - Ability to configure a power saving Sleep Mode in the Transmitter by
, G7 b6 Y) b* O) e( S9 W C> both software control and input hardware control.
8 L; w1 F |8 U# A6 | >
5 W0 U5 o6 K/ w7 }& \ O$ h> In order to configure the units, we would need a way to make the
2 [5 D! v9 u; _6 e% F > settings. This would preferably be from a computer terminal so that
6 G8 }- g6 b8 P, c" s1 u> configurations can be saved or easily duplicated for production volumes.
6 V9 M: T8 Z; \, F& ^8 W. T, A; @> The units should be small and compact with shielding, and able to mount
- m- x$ f! W" W/ p- o: I> to a printed circuit board with header connector.
& w- |: x: `+ }$ y >
; H8 m- p$ |/ |8 M > At this time, we are interested in samples of a pair of modems that
2 P) g# N; s( \* Z" L > might be similar to this proposed system. We do not expect that you
- Q* r# c9 o( Y V* b6 T> provide all of these specifications at this time. I can describe our
* w% w- M4 _# o, j: c* w > immediate application needs in the next email if this project is of
9 G8 y" w& P0 J) E( ]! [" c > interest to you. Perhaps you can make the samples by those
6 N, r# V, C; n T6 P > specifications. This will allow us to test your radios before we move
3 U0 d/ L% e' Q/ }9 K> forward. We are interested in your 900MHz radio to start.
( ?5 S' k+ {, Y+ D- T) L$ H( ^, M
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