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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

8 L7 @8 l& A; W& C! _( y 客户要求如下,如果哪家工厂可以做,请和我联系
, w2 I4 r& k1 _! s. q6 u: X! m> The application that we have in mind is similar to others that we commonly
$ j& I$ D! y4 r) }- _, D& @: P> have. If we were to pay for FCC approval, we would want to use the modem
& |) X8 G4 t4 ] U/ j0 s3 s> units in all similar applications under the same approval number.
( f! y) d. ^+ ? > Therefore, we would like to be able to configure the units to a specific
1 U/ `) @1 \$ y2 Y4 N9 E# g> application. For the business that we do, this approach will yield more
2 n" E8 J& H6 B o- |1 R7 ~ > sales based on the same product and approval. We are interested in the
% y- f/ H$ S* ^. N > following specifications:
; B0 a1 {; i4 K8 O' Y* n+ f& D0 g>
, w0 q/ T$ D9 u$ f; E) V. M, U> - 2 inputs at the Transmitter with three possibilities;
' ?& f. _. W* Z \% _1 ]; H > 2 analog
3 r& T9 \$ B3 b, g( b > 2 digital
$ u2 S; P! N, i/ l. h > 1 analog and 1 digital
% g \0 b0 _. K0 {. y& @ f >
4 E L# J1 N7 |6 A2 e > - 2 outputs at the Receiver with three possibilities to match inputs
8 l7 h; Z& O5 K7 K# d, Z u) ^ >
7 W( w4 r4 n l> - Ability to configure/define analog Transmitter input ranges through
7 W: h# Q# y* w# y) ^8 O$ d> simple programming method to correspond with full-range analog Receiver
8 a# I) E9 J q& J; t > outputs (0 - full voltage).
. c+ E* m4 w4 g& n) R>
J4 M1 r$ h+ { m& H' w# N) V> - Ability to configure and set sample rates for the inputs.
* O9 g5 P0 F$ K( h: ~5 X' q >
0 F/ b: l/ t6 b; a2 a/ { > - Digital output on Transmitter that turns on during the sampling period.
' K% J( B+ B, n, {7 } >
2 w) B. n9 G; T7 ~4 I! Q' h5 ` > - Ability to configure a power saving Sleep Mode in the Transmitter by
( m3 T7 {6 V" n3 z' f4 g8 f' k > both software control and input hardware control.
" V% K8 b' e$ w5 c >
& Z' e! k' z* G C > In order to configure the units, we would need a way to make the
, T& I. o3 u+ l2 p2 U" \ > settings. This would preferably be from a computer terminal so that
0 k' j' S- B/ e! Q2 \ > configurations can be saved or easily duplicated for production volumes.
2 p; R$ o& s( c8 n3 u) r> The units should be small and compact with shielding, and able to mount
- i1 i$ d3 k- W* I! r6 \ > to a printed circuit board with header connector.
( f! Z; h- {) S' K0 f>
9 E! \8 Z' V. i# s > At this time, we are interested in samples of a pair of modems that
) i( W+ l8 @2 l: d/ [4 {$ [. @> might be similar to this proposed system. We do not expect that you
1 v- o* p1 j" G1 Z, Q& r> provide all of these specifications at this time. I can describe our
( B" ~6 P# j5 O > immediate application needs in the next email if this project is of
* I' v5 R) i- n, ]> interest to you. Perhaps you can make the samples by those
2 }+ Q4 Q0 i; U> specifications. This will allow us to test your radios before we move
. r6 V7 c9 v( I E v* P1 A( E> forward. We are interested in your 900MHz radio to start.
; r/ C. f. V8 p5 @2 r' t
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