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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

/ D6 ?1 B2 j0 F3 O) S* F 客户要求如下,如果哪家工厂可以做,请和我联系
6 U' }, F& Z2 H. f- J4 q> The application that we have in mind is similar to others that we commonly
" Y- _- Q: B; \ > have. If we were to pay for FCC approval, we would want to use the modem
7 L! t" s# Q+ p3 Z8 C> units in all similar applications under the same approval number.
1 D3 W% K. d: e0 g9 i> Therefore, we would like to be able to configure the units to a specific
1 ^4 i3 n9 h6 [/ j* b9 Q > application. For the business that we do, this approach will yield more
9 U8 o1 \- t, n! Y> sales based on the same product and approval. We are interested in the
8 i& M7 Q( n4 X7 ?* B; j > following specifications:
' u6 j" i5 u _! u9 e% V >
1 E6 i# I. Q* w2 ]> - 2 inputs at the Transmitter with three possibilities;
2 H3 `' |6 P- h7 Z+ I4 s# Q. {> 2 analog
4 f# _0 f: H3 g: L# G# x# I> 2 digital
4 [# M* ^! r2 F8 W> 1 analog and 1 digital
7 v! W% g, {" z% s% P >
- o b$ q! C. C% r' b > - 2 outputs at the Receiver with three possibilities to match inputs
5 y' |2 n! m- ^6 N, {" |6 { >
! `3 q& b: V& b/ i8 X$ M> - Ability to configure/define analog Transmitter input ranges through
( _/ H7 g9 i/ A2 t8 Z) _ > simple programming method to correspond with full-range analog Receiver
. Q% p9 a; s% {7 B> outputs (0 - full voltage).
2 K0 f% ?( z" E0 g. _>
; h( S2 p+ z- Y: f> - Ability to configure and set sample rates for the inputs.
~" r) M; K( e9 r' S) J- V- d>
) q; v4 I8 Q) `; k/ Z" T/ l> - Digital output on Transmitter that turns on during the sampling period.
. D6 i: q* h5 } s8 K! u >
& q9 d% L# Y/ Y9 A) q! O9 n& M+ k) O > - Ability to configure a power saving Sleep Mode in the Transmitter by
: ]6 g0 F8 a( F9 z> both software control and input hardware control.
( R5 w7 N |2 E) m, [>
: F1 d3 a2 s! D# {. A5 M> In order to configure the units, we would need a way to make the
$ G& ~8 \2 w: u5 K) j8 l8 K) J> settings. This would preferably be from a computer terminal so that
% A6 W$ f" g+ M$ F> configurations can be saved or easily duplicated for production volumes.
( f: ?0 ^4 E; m4 O' f0 h > The units should be small and compact with shielding, and able to mount
; Q. w+ y" U" }3 A! f5 @8 P > to a printed circuit board with header connector.
2 n4 g% h0 z* e/ D" R* l1 f- d# L >
' s$ v4 L3 P0 Z) d% N2 }' X; X5 f> At this time, we are interested in samples of a pair of modems that
_ s7 J" S8 N1 L$ b5 O > might be similar to this proposed system. We do not expect that you
6 l9 t8 d6 T% ^ > provide all of these specifications at this time. I can describe our
! ^: y3 A7 P4 X > immediate application needs in the next email if this project is of
; f$ O4 d/ N z+ b) ~2 { > interest to you. Perhaps you can make the samples by those
5 c0 \9 i8 M, ?& m. W, R7 M> specifications. This will allow us to test your radios before we move
9 n# T+ B% O, l' ?$ |' w> forward. We are interested in your 900MHz radio to start.
6 S* X9 r4 _ k
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