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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 a! A# {) D3 U 客户要求如下,如果哪家工厂可以做,请和我联系
3 g' t, e" L( P% t+ e; L6 @ j. q > The application that we have in mind is similar to others that we commonly
2 _, n5 g7 |% e! k" ] > have. If we were to pay for FCC approval, we would want to use the modem
% T0 l0 ]- K9 }; S7 e+ u5 B > units in all similar applications under the same approval number.
! j; `# j( ] y7 Y> Therefore, we would like to be able to configure the units to a specific
& j% l& i! `! L& P2 b" H> application. For the business that we do, this approach will yield more
5 r/ Z9 k5 `# s( q2 c> sales based on the same product and approval. We are interested in the
- E% Y( C1 ?8 z& i! I G> following specifications:
8 S; x9 A- d2 }9 D>
9 `' j1 x: j B: X6 q' b; I> - 2 inputs at the Transmitter with three possibilities;
4 s9 M! X/ V! a7 L' m- e. P0 F# I > 2 analog
- V9 F/ [1 G$ c; Z> 2 digital
+ y! H3 j/ m: V0 t. u" F% m4 ? > 1 analog and 1 digital
l+ g; V7 h5 ?" S% K>
6 W4 o; x7 p: B8 R+ y2 Y( _( Y > - 2 outputs at the Receiver with three possibilities to match inputs
- ^# e* G/ [" i( ` >
+ J3 F5 j0 v0 a2 e > - Ability to configure/define analog Transmitter input ranges through
, R- `9 m. d% M% b7 f- m: Q6 _ > simple programming method to correspond with full-range analog Receiver
7 \( n. W8 r. N" k > outputs (0 - full voltage).
0 Z' l4 g3 x2 e >
, Y9 s$ o! h5 S, v: d8 X > - Ability to configure and set sample rates for the inputs.
; C/ K! B" f j: _>
; r) _. C4 r) O- f > - Digital output on Transmitter that turns on during the sampling period.
, J+ a: W" T6 } >
# J, @: E- X: S. V4 \& F3 c > - Ability to configure a power saving Sleep Mode in the Transmitter by
. @% U$ K$ C& F0 }- d) U> both software control and input hardware control.
8 K5 B0 d! K; F2 n6 O* g7 p>
; v5 D' P! p' E: o% |. K# \7 F; O> In order to configure the units, we would need a way to make the
3 `' A5 u b# e: Y9 r > settings. This would preferably be from a computer terminal so that
6 A; `- Q: l% {7 F% F% n> configurations can be saved or easily duplicated for production volumes.
! a0 ]2 @0 B$ e7 d, h% t > The units should be small and compact with shielding, and able to mount
. ]4 N) @$ O9 c/ u1 e W/ l* T# u> to a printed circuit board with header connector.
8 z! {9 k* l0 a& U) o# A. i& u >
% F- J" B4 i$ ^" \7 b> At this time, we are interested in samples of a pair of modems that
) i; G2 H' }5 c+ W i" p4 G) T> might be similar to this proposed system. We do not expect that you
7 Q0 S0 Z: R9 x. V> provide all of these specifications at this time. I can describe our
+ a; Z, D: d8 l U! q% _. z> immediate application needs in the next email if this project is of
- w7 M0 F% u% B > interest to you. Perhaps you can make the samples by those
, V; b' A) f q+ j3 B> specifications. This will allow us to test your radios before we move
& a6 x2 H) D1 B: J+ R> forward. We are interested in your 900MHz radio to start.
( ]( i: p; C7 _: o' h) r- ?, v
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