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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

& Z9 r# z* a& v9 O& r) ?客户要求如下,如果哪家工厂可以做,请和我联系
) M; [+ p" b$ M. e! E- d7 v> The application that we have in mind is similar to others that we commonly
/ ?2 s; y8 T- ~% v> have. If we were to pay for FCC approval, we would want to use the modem
. ?7 A$ g. P$ \8 D! \8 o* R> units in all similar applications under the same approval number.
% N; b. a5 M8 R> Therefore, we would like to be able to configure the units to a specific
, r3 [+ `: {7 A" M > application. For the business that we do, this approach will yield more
5 @, L& Y% H$ i: J# K% y9 m0 A> sales based on the same product and approval. We are interested in the
& ~8 Q! a6 a. q. } > following specifications:
2 k1 @9 |- _) o$ u6 m3 R( }/ G >
' X" C( {/ ^+ C > - 2 inputs at the Transmitter with three possibilities;
: r% |! ]* S$ y+ j u* f > 2 analog
: ~' Z+ C3 F" e- a0 I > 2 digital
% b/ F3 K4 ` _% n0 H b) T1 k) u> 1 analog and 1 digital
5 _- W# B5 V2 v% b) e- f >
r3 X; T! G6 ^( }* r > - 2 outputs at the Receiver with three possibilities to match inputs
" F/ ]' }( E3 m+ P7 O2 d>
7 E$ l; s# s1 J) |. o> - Ability to configure/define analog Transmitter input ranges through
. X% }9 k i6 }5 k) T> simple programming method to correspond with full-range analog Receiver
1 S: L7 W* z% W2 n > outputs (0 - full voltage).
) C" F" U( j# V$ v9 p& M5 Y0 K" @>
; P5 _) i* @' u) {> - Ability to configure and set sample rates for the inputs.
4 v4 G7 ~1 l+ }. ]& j >
) C# d, M9 W8 q6 p3 o" g8 G U> - Digital output on Transmitter that turns on during the sampling period.
( ?% C l U4 Y! g8 o >
- X; W: C4 a M. S- Y! h7 Q h3 r> - Ability to configure a power saving Sleep Mode in the Transmitter by
7 h% P$ Z+ A" w+ `+ U8 S, M> both software control and input hardware control.
R, m7 a; s! v/ h>
3 U! F! E) K1 ^$ U; v% m> In order to configure the units, we would need a way to make the
1 B( Z4 J: `. Y1 X> settings. This would preferably be from a computer terminal so that
: B* d: q9 u" S, O> configurations can be saved or easily duplicated for production volumes.
% ~. L( n) y# O& o > The units should be small and compact with shielding, and able to mount
8 p9 [$ n+ Y* r, ^ > to a printed circuit board with header connector.
2 O+ v* ~; _1 j>
+ K7 d: V$ s: S r" o > At this time, we are interested in samples of a pair of modems that
% n0 t. U; U9 { > might be similar to this proposed system. We do not expect that you
. }) L! M- H6 O4 d4 a$ C > provide all of these specifications at this time. I can describe our
. E4 `* G! I8 h3 t# f > immediate application needs in the next email if this project is of
8 a1 }& d+ g7 A> interest to you. Perhaps you can make the samples by those
: y6 U9 h9 T. D) v( N5 L1 M- z > specifications. This will allow us to test your radios before we move
) ]4 \; z% i. q( W, ~4 N> forward. We are interested in your 900MHz radio to start.
& `- v6 L' `; Q; R& e T& ^
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