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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

! a% U U% n+ f8 p( M8 z% f 客户要求如下,如果哪家工厂可以做,请和我联系
9 M* @) E4 ^4 G$ P# ? > The application that we have in mind is similar to others that we commonly
0 I [0 W+ s( o > have. If we were to pay for FCC approval, we would want to use the modem
8 M; @ R4 s* Q5 P > units in all similar applications under the same approval number.
; _" z) L3 p# [5 o7 ? > Therefore, we would like to be able to configure the units to a specific
/ W% W( |! s5 G6 g$ {> application. For the business that we do, this approach will yield more
2 {% x6 j9 `& S% |> sales based on the same product and approval. We are interested in the
" d; f! H8 q% e: u% f9 Y > following specifications:
( b- `5 J6 l& d# i >
6 P1 C1 T/ R) r > - 2 inputs at the Transmitter with three possibilities;
; G+ r. r3 w9 G+ d6 o6 p5 R > 2 analog
# v8 P' `1 ^0 x" t0 }- @/ {> 2 digital
4 h% c6 y- o9 N8 A, u> 1 analog and 1 digital
3 e' f7 V6 q9 ~# I& w/ n c >
5 K) Q3 b0 R6 B5 ^1 G2 _( j$ j > - 2 outputs at the Receiver with three possibilities to match inputs
8 i, x9 z. b/ l1 ?: s& T>
2 s8 {2 u$ h G8 ?: V+ V> - Ability to configure/define analog Transmitter input ranges through
7 [; y* c4 J0 ]" e > simple programming method to correspond with full-range analog Receiver
, U! n1 q- F. Z) ^/ u _5 T% P* P3 o > outputs (0 - full voltage).
, Z( x% g; S; y! _/ G >
# b2 G+ K# {' H: b0 Y" `$ s, {> - Ability to configure and set sample rates for the inputs.
5 ]6 w6 ?, y# q4 `>
, \! B3 ~/ f3 R > - Digital output on Transmitter that turns on during the sampling period.
7 u* F, ^. K- K7 [; C5 P>
0 Z" b1 z" Q% }8 h: w; c+ u3 z > - Ability to configure a power saving Sleep Mode in the Transmitter by
2 o6 R, k P- m( m6 b+ m$ M8 I > both software control and input hardware control.
+ `8 m$ K. _+ r& z; z, Z >
. _" Y7 L5 S) P P) g9 I> In order to configure the units, we would need a way to make the
: I8 P8 ^6 l8 O' j* b8 N' | > settings. This would preferably be from a computer terminal so that
7 p% V" d" }4 c& U# R: a' c6 L5 i> configurations can be saved or easily duplicated for production volumes.
) O8 h2 A7 z: S( R> The units should be small and compact with shielding, and able to mount
+ E9 B4 f4 t0 r3 n5 f+ u> to a printed circuit board with header connector.
7 ^+ i3 f( m9 ]>
0 A2 E+ C: W7 n, Y0 I' w> At this time, we are interested in samples of a pair of modems that
" h g0 X1 b( [9 |2 R. D > might be similar to this proposed system. We do not expect that you
$ I, i# D% y$ w$ o5 [( y> provide all of these specifications at this time. I can describe our
$ r& n1 s; Q$ J$ w- m1 D( @; k > immediate application needs in the next email if this project is of
) l! }- r2 B3 I$ S# f; h> interest to you. Perhaps you can make the samples by those
' i9 m9 P- h* Z- K1 k6 ?# S, _1 W > specifications. This will allow us to test your radios before we move
. @! R9 k( r& z+ O$ k> forward. We are interested in your 900MHz radio to start.
5 n+ t3 Y# ~4 A
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