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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

3 i4 T( {3 w% w( I6 Y& I 客户要求如下,如果哪家工厂可以做,请和我联系
; b. W8 t* ?/ B> The application that we have in mind is similar to others that we commonly
5 }! k( W; @' m/ B7 _. ` > have. If we were to pay for FCC approval, we would want to use the modem
( W4 g H1 e: I8 z; o" L3 W> units in all similar applications under the same approval number.
* r- V7 S) k: v> Therefore, we would like to be able to configure the units to a specific
2 q/ J' ]) w2 [1 L( ?$ S7 H! {4 l' S> application. For the business that we do, this approach will yield more
! I# |( [, ~5 {, w9 {- @( O> sales based on the same product and approval. We are interested in the
2 d& {: H& Q$ K5 p A* j' P> following specifications:
6 b3 j; y q9 x: F! m, p6 y>
4 ?' B1 I" ?' ]) ], z, M> - 2 inputs at the Transmitter with three possibilities;
. o. g4 {. \$ L, |& N! j$ K> 2 analog
# ~, l7 q7 J* D+ V# w> 2 digital
$ o! i# W1 }9 x; Z9 ?. q > 1 analog and 1 digital
( J% r+ `+ ^0 R9 Y >
, z& m( T, M% n6 c9 P( S! _ > - 2 outputs at the Receiver with three possibilities to match inputs
1 W2 s2 w8 {+ N: ~# b$ [ >
: F% a* ?' r' f4 N5 z2 H) w. z# G> - Ability to configure/define analog Transmitter input ranges through
2 D- G$ o" b! t2 e# ~% [> simple programming method to correspond with full-range analog Receiver
5 n8 N+ T9 C+ K3 C3 ?> outputs (0 - full voltage).
6 ^( t9 L2 b( d >
1 P( N3 U* l0 Q/ N2 b6 P0 h% I> - Ability to configure and set sample rates for the inputs.
8 c; H( o% W5 [ o4 H1 D- N! m+ W0 V >
1 W5 J6 s2 A) R > - Digital output on Transmitter that turns on during the sampling period.
; r' I5 F' J+ H, C) W, h >
9 I: M! _! C0 o B > - Ability to configure a power saving Sleep Mode in the Transmitter by
/ l3 y8 m. {5 {, K1 `; O( { > both software control and input hardware control.
- @7 }2 O5 x0 b* M >
9 l, ?3 `& j2 v2 v. X/ ]) @> In order to configure the units, we would need a way to make the
1 w0 w, n! R. A4 ]# W* K7 \7 o > settings. This would preferably be from a computer terminal so that
" q! v8 Z ^4 O( B+ \& s> configurations can be saved or easily duplicated for production volumes.
8 N1 J4 |: L& f! z; q. g3 o1 H> The units should be small and compact with shielding, and able to mount
4 U) u5 J- |, X7 Q> to a printed circuit board with header connector.
4 C c6 q* i4 \7 ?$ H0 M0 j >
* a- N' R- a3 H" u( y> At this time, we are interested in samples of a pair of modems that
& }6 a( F2 y/ @ u# _- w ]> might be similar to this proposed system. We do not expect that you
% e6 T9 b7 N0 f> provide all of these specifications at this time. I can describe our
/ Z( Y6 g+ I5 L1 W6 ~% [, V> immediate application needs in the next email if this project is of
' c2 Z6 s7 G$ l- ~3 v2 H> interest to you. Perhaps you can make the samples by those
# [! N5 a# c: s > specifications. This will allow us to test your radios before we move
/ w3 u- R( _$ H% x$ O; }> forward. We are interested in your 900MHz radio to start.
7 C' e2 i0 ^2 [( J* ^
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