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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

! r1 N4 C" C0 `( e* e9 N客户要求如下,如果哪家工厂可以做,请和我联系
: w+ {- I1 p# a3 H' o! p, Q7 T> The application that we have in mind is similar to others that we commonly
8 l0 B [! W+ \5 k7 Z > have. If we were to pay for FCC approval, we would want to use the modem
5 [% D; ]: W; b% k6 @! L > units in all similar applications under the same approval number.
, Z0 O3 ?2 ]3 T% {> Therefore, we would like to be able to configure the units to a specific
I8 _5 O1 m9 D" m6 ]$ v: u& k> application. For the business that we do, this approach will yield more
S% {- i( |$ S& c* w% i > sales based on the same product and approval. We are interested in the
) i) `/ x" `- w% ?4 x$ T6 V > following specifications:
* Z& h" j' k1 N2 y( Z" W5 K7 i>
% T3 J1 M" ?% n6 o! u> - 2 inputs at the Transmitter with three possibilities;
) a2 v' s6 y# {& | > 2 analog
) d/ e% b" f2 x> 2 digital
4 J9 [9 E _/ K7 s3 H q I5 l; t& K3 ^7 R> 1 analog and 1 digital
8 X/ ~! B t+ E' f >
4 m& v( t2 [! h> - 2 outputs at the Receiver with three possibilities to match inputs
( ]) _$ f" _6 ?, k8 H$ G >
1 h5 e/ ~6 C# a2 g. ?& [; X* k> - Ability to configure/define analog Transmitter input ranges through
* y+ d: x; q8 W( M C. i > simple programming method to correspond with full-range analog Receiver
- d4 \% [* G5 {+ \* J> outputs (0 - full voltage).
- X! B; _! C9 |/ ]8 z >
' P0 o" C$ N$ [$ m5 H > - Ability to configure and set sample rates for the inputs.
7 I* H* `5 I3 ~% `- k >
4 m" V- U7 C$ j& z* N- g& P> - Digital output on Transmitter that turns on during the sampling period.
, ^, X* S/ l! e' M* }2 ]! C >
. l; s7 y, ?$ ?; {: M9 f& O$ A > - Ability to configure a power saving Sleep Mode in the Transmitter by
) L' h0 f6 u* c; d8 x9 o > both software control and input hardware control.
, \: T' ^/ p% r7 N1 T% v c >
! X P. h. c% P, P: P, G > In order to configure the units, we would need a way to make the
3 f! N" a9 z( q/ a: \; U > settings. This would preferably be from a computer terminal so that
) I/ L) C$ |6 f2 ^> configurations can be saved or easily duplicated for production volumes.
/ f6 H/ b0 S# t1 {8 k& Q; `8 w > The units should be small and compact with shielding, and able to mount
7 M$ g+ Y% P# }3 w8 M& j> to a printed circuit board with header connector.
- g" r. `# U) W3 i4 Q3 V2 a>
5 ~) w% m( l' T6 ] > At this time, we are interested in samples of a pair of modems that
5 t" ], d+ M6 Z( g7 W) b4 }% N > might be similar to this proposed system. We do not expect that you
8 z0 ^7 H! z7 D! e1 y& Y5 c> provide all of these specifications at this time. I can describe our
/ L/ t$ \3 `, D6 ` > immediate application needs in the next email if this project is of
n, v5 W+ k- {6 Q/ _ > interest to you. Perhaps you can make the samples by those
9 X0 o5 X# e+ N# l7 P6 W > specifications. This will allow us to test your radios before we move
6 `& R! h. p& D5 N) a > forward. We are interested in your 900MHz radio to start.
4 r. S* D, I1 {) I3 v4 M5 k& {
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