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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

7 R9 N9 y X j- I 客户要求如下,如果哪家工厂可以做,请和我联系
, n' T: Q- }2 ?: V4 C, h > The application that we have in mind is similar to others that we commonly
9 P& e. \# N1 ?/ ^( w2 j8 S > have. If we were to pay for FCC approval, we would want to use the modem
8 t6 v2 T: a+ f* ^' @& E> units in all similar applications under the same approval number.
! c. Q& O' u4 H+ W+ S > Therefore, we would like to be able to configure the units to a specific
8 O$ `4 ~0 G2 s+ Q0 p> application. For the business that we do, this approach will yield more
& g) [4 \! C- S* D: z# I$ Y> sales based on the same product and approval. We are interested in the
3 A9 ~7 Z7 b0 \> following specifications:
3 `+ y, L0 ]7 |: V1 W7 |" t: _6 @ >
3 ]6 c6 y+ x7 D9 G > - 2 inputs at the Transmitter with three possibilities;
; A+ c; L' `! B7 W% @, _$ F. D> 2 analog
& m) I& S& d: C( |, |> 2 digital
/ g& a8 u: |9 F5 y+ V > 1 analog and 1 digital
, x1 a0 q6 t* }5 k( M: y4 X >
+ r$ G1 i- k P" U7 n5 \ ~> - 2 outputs at the Receiver with three possibilities to match inputs
9 X( h. A5 j+ l7 c5 B" B: F>
- K* F: N8 G* R& M Q8 \# }& o, I. e > - Ability to configure/define analog Transmitter input ranges through
5 h4 r% m- J1 E% c> simple programming method to correspond with full-range analog Receiver
4 x( Z' f+ {8 H > outputs (0 - full voltage).
' U7 F) n8 ~% Q: P >
( r9 L6 H2 ?7 _> - Ability to configure and set sample rates for the inputs.
3 s1 M; i4 b$ A6 e' e X7 @+ A>
1 i, J1 p5 N8 ] > - Digital output on Transmitter that turns on during the sampling period.
" C0 f. A6 t9 Z( d# o>
# _2 e: l- j1 G0 L h> - Ability to configure a power saving Sleep Mode in the Transmitter by
) m9 F# f$ X! ~) ^" P( f> both software control and input hardware control.
; i. T# v7 I) W! S5 s) U/ J>
& C B" h% \% U# I: {& ?> In order to configure the units, we would need a way to make the
4 c0 @- H4 a F% I > settings. This would preferably be from a computer terminal so that
- X3 o+ v% C7 S# V > configurations can be saved or easily duplicated for production volumes.
6 S! H$ q/ k0 v9 U6 g, L! ^1 f > The units should be small and compact with shielding, and able to mount
! P, q1 X' E- p) Z% \> to a printed circuit board with header connector.
: t7 ]3 @& H- k& T& G) S >
$ x. X4 F/ E- ]. ~* O > At this time, we are interested in samples of a pair of modems that
8 Q( _; d% S+ o! a6 K2 p- _ > might be similar to this proposed system. We do not expect that you
) h! j/ f( `! o> provide all of these specifications at this time. I can describe our
% r+ ~. N; k; L7 { > immediate application needs in the next email if this project is of
: ^# T" n" F2 a1 c" Z' m, P > interest to you. Perhaps you can make the samples by those
& ?! e" \( y% u4 r8 \3 U$ l > specifications. This will allow us to test your radios before we move
& k8 A& z9 P# Y6 @ I) A+ r1 ]5 O r> forward. We are interested in your 900MHz radio to start.
" k9 w# ?& P# r" I9 d
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