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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

) A6 w$ x# i9 H) {" v 客户要求如下,如果哪家工厂可以做,请和我联系
+ W5 T, \, k( v. D- _5 C* m > The application that we have in mind is similar to others that we commonly
+ U' f2 m) d* F; k2 I > have. If we were to pay for FCC approval, we would want to use the modem
; ]7 u$ [# \) n: h> units in all similar applications under the same approval number.
7 W' u8 W5 ?$ E- d# t3 Z* b > Therefore, we would like to be able to configure the units to a specific
$ I. v% [( Q8 |& n( a5 d0 m' E > application. For the business that we do, this approach will yield more
0 V3 Y1 t! y, C9 z$ r3 _ > sales based on the same product and approval. We are interested in the
* B* n: Z$ |% i, C. F2 _ > following specifications:
8 u; X4 C; y& }4 w5 a8 B9 w >
9 ?0 t: ]' G! t% m8 N; r> - 2 inputs at the Transmitter with three possibilities;
B5 V- k. p$ h> 2 analog
. u% Z: Q% v# ]. ^> 2 digital
% M/ w+ B' I# h2 c3 G > 1 analog and 1 digital
/ e( ~, V4 p% m. ?" u; E7 n& h >
. g0 C" p' c3 H0 L > - 2 outputs at the Receiver with three possibilities to match inputs
5 S+ Z5 m+ \; y' y" i; l- y>
, k+ @# y7 g+ \7 Z# v. B> - Ability to configure/define analog Transmitter input ranges through
8 N6 R& Q' ? J1 Z9 x( A; M > simple programming method to correspond with full-range analog Receiver
% K* w( z" l/ ?; u9 P* N( J> outputs (0 - full voltage).
9 v# D; B; \) s! w1 K2 k>
7 @ f1 i. O2 ?* x> - Ability to configure and set sample rates for the inputs.
; ^5 b- |/ x6 z( H! U' ~ >
) ` F# X7 y7 P+ _! j. d> - Digital output on Transmitter that turns on during the sampling period.
9 X9 R1 W$ F/ P* E0 u# u >
* E, @+ D5 A' L> - Ability to configure a power saving Sleep Mode in the Transmitter by
+ o, _) V/ z. E( u+ N# N> both software control and input hardware control.
* Q7 ?; B9 A( l6 a7 ]9 p >
& b& K$ E2 S- h> In order to configure the units, we would need a way to make the
2 L- @8 z% V' U- x8 @( B7 Y> settings. This would preferably be from a computer terminal so that
# _% \- D6 o m8 v, o; q* B% U> configurations can be saved or easily duplicated for production volumes.
( b! R: l0 i9 Z6 J( Y& q3 j$ V- `> The units should be small and compact with shielding, and able to mount
7 [5 j8 U0 ^" X > to a printed circuit board with header connector.
5 m7 s& N9 R/ s>
2 Z# e+ J8 X% {' i& [$ p$ I+ D> At this time, we are interested in samples of a pair of modems that
3 ] V2 U; \- Z" v1 s& d: T; X> might be similar to this proposed system. We do not expect that you
# n9 G. \8 \( N7 t8 f Q$ L ?> provide all of these specifications at this time. I can describe our
$ Q. |' s" g" D- `% i> immediate application needs in the next email if this project is of
0 l' A3 }, R* r1 _) Z, R" ~> interest to you. Perhaps you can make the samples by those
; f. O& [, I& d- b- F# \> specifications. This will allow us to test your radios before we move
& _8 n: B f3 \; G6 y( K > forward. We are interested in your 900MHz radio to start.
$ G+ T; D, e4 S! b. }+ d
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