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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, Y' t. W1 e3 e& S: f2 l4 O客户要求如下,如果哪家工厂可以做,请和我联系
! t4 H8 `2 ]5 T" c" a+ R! t% Z > The application that we have in mind is similar to others that we commonly
( M$ p5 N3 S, b5 T2 m: L3 Y > have. If we were to pay for FCC approval, we would want to use the modem
8 S4 A' ~/ A3 q, B> units in all similar applications under the same approval number.
5 y1 N8 n/ f3 |9 e; x' ^$ _ W > Therefore, we would like to be able to configure the units to a specific
) ^9 f' j8 @" w. I7 q6 @ > application. For the business that we do, this approach will yield more
4 h9 u( s y9 j P> sales based on the same product and approval. We are interested in the
8 }: t3 g4 U5 f> following specifications:
9 e" C+ H. x3 ]5 ~6 s>
+ H. ~/ x. z, {# H& W0 Q6 o& ? > - 2 inputs at the Transmitter with three possibilities;
. @4 ~/ e! p- L! c! d > 2 analog
7 q9 l! e" f! e$ S$ i > 2 digital
* C' m! e- D" d8 S6 p+ E> 1 analog and 1 digital
8 ~: Y3 L4 Q- X( z5 b! a >
. }2 s' e& g$ K> - 2 outputs at the Receiver with three possibilities to match inputs
3 t" F6 Q3 T# @* e5 \- j>
+ K+ g X1 O# b* c5 T! n; o! P> - Ability to configure/define analog Transmitter input ranges through
' f* U% n+ K1 [, J) E > simple programming method to correspond with full-range analog Receiver
6 N2 ^! F. n( k> outputs (0 - full voltage).
4 l" t/ r5 G( u/ a: Q( `>
% |3 R" t6 a: |% ?" H> - Ability to configure and set sample rates for the inputs.
+ u" X" Y8 X- n1 b. c3 x8 v>
% e9 \* X' o& y6 L3 [& Y: X4 p> - Digital output on Transmitter that turns on during the sampling period.
0 T: j& V# p, ?$ v c >
, z( v6 L5 M( S > - Ability to configure a power saving Sleep Mode in the Transmitter by
4 e8 ?; o5 }0 q; x> both software control and input hardware control.
: i8 K! f2 k9 X+ M& h! S>
: X! C! E4 ~# X0 @+ _* f > In order to configure the units, we would need a way to make the
; t; V/ o t' W > settings. This would preferably be from a computer terminal so that
% n7 v1 g4 A8 K5 z" w3 K > configurations can be saved or easily duplicated for production volumes.
8 u+ L1 L. o# ^. I6 c* J! \ > The units should be small and compact with shielding, and able to mount
4 Q- }: ?# g! |* i1 w > to a printed circuit board with header connector.
7 b# W5 M& a6 q>
7 c& s3 Y6 U6 X; C > At this time, we are interested in samples of a pair of modems that
4 E: k G/ a& U8 o6 K2 e# | f> might be similar to this proposed system. We do not expect that you
# D9 `4 w* W, S, C6 L: z > provide all of these specifications at this time. I can describe our
9 ~; ~) {. M9 h% v/ g6 }> immediate application needs in the next email if this project is of
; G- A* I) H. A% B7 s4 M( Z @% f> interest to you. Perhaps you can make the samples by those
+ U& C. N: T U6 h( E5 M/ i: N# b > specifications. This will allow us to test your radios before we move
. y1 A/ a5 ~% D2 v* B6 H: q. ?) q> forward. We are interested in your 900MHz radio to start.
; m6 U% Z& k8 h0 r% Z6 ?
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