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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

4 J5 R; U+ ^. T5 P客户要求如下,如果哪家工厂可以做,请和我联系
- v' l: B" E+ `5 v> The application that we have in mind is similar to others that we commonly
+ w; F/ E7 Q% L/ U3 X> have. If we were to pay for FCC approval, we would want to use the modem
( Y0 }8 b( t' F7 ]& e6 |8 ]> units in all similar applications under the same approval number.
( |& b4 d- }& ?+ |% h7 |# a > Therefore, we would like to be able to configure the units to a specific
& y% P6 i0 |/ A: ?" S > application. For the business that we do, this approach will yield more
7 L. ~% S6 L4 R: \% a > sales based on the same product and approval. We are interested in the
$ ?+ y: I* R4 j8 M! H > following specifications:
5 v I- C+ g7 Q# p8 a >
3 V: c' F$ r; f/ _ h2 m > - 2 inputs at the Transmitter with three possibilities;
# N' L# ]% v( C8 S+ q: r> 2 analog
0 }' z7 x8 [! w1 p g+ h6 Z9 S* v% N> 2 digital
* Y& ^1 q" s# j4 a# |+ x > 1 analog and 1 digital
4 B! D# k4 J# z# ?, w1 z2 b >
5 a/ @% {- t5 l2 A7 n> - 2 outputs at the Receiver with three possibilities to match inputs
# \3 C2 b$ P# n1 f>
9 v0 y2 h$ p5 u( C5 n> - Ability to configure/define analog Transmitter input ranges through
" ?. T6 u+ n+ `6 n9 m7 c> simple programming method to correspond with full-range analog Receiver
1 Y" p0 V% h, q- D4 ^$ s0 L> outputs (0 - full voltage).
/ @) N+ L4 M# u/ h6 ~+ R>
3 U# k& D% P. C9 A! q> - Ability to configure and set sample rates for the inputs.
- Y, f% q) g0 x z >
# u' |5 p, T) Y/ v7 T# [7 x> - Digital output on Transmitter that turns on during the sampling period.
[: w' @% a- G8 G6 y, s >
|+ {: w* |: w7 f* _- g' |# v > - Ability to configure a power saving Sleep Mode in the Transmitter by
5 o& X2 `( n4 z; W) B > both software control and input hardware control.
0 P0 N1 ?) s ~, f5 C7 s* Y" G, A2 s>
' t8 E" Q7 c @% v: [6 T> In order to configure the units, we would need a way to make the
/ W% U- Y: k; k2 }& T' s& ~ > settings. This would preferably be from a computer terminal so that
/ z6 a. f2 n! ]* X > configurations can be saved or easily duplicated for production volumes.
$ j: ~0 m% O9 t5 r% U: I- X8 i- i> The units should be small and compact with shielding, and able to mount
s7 R% R8 A) ^; ~( F > to a printed circuit board with header connector.
9 K" g7 {3 n+ q& p>
' p6 r6 I& P$ U9 x% W) v0 q0 P8 Q, J> At this time, we are interested in samples of a pair of modems that
" p/ M" ?% A, t! A > might be similar to this proposed system. We do not expect that you
5 C4 ?7 ?8 z+ m5 L$ u! E > provide all of these specifications at this time. I can describe our
* N" T! Y* @+ I; Z9 W. f > immediate application needs in the next email if this project is of
4 v+ k9 Y! v, S2 B> interest to you. Perhaps you can make the samples by those
0 h9 V4 ^" S& M. g> specifications. This will allow us to test your radios before we move
- X7 d% L/ ^+ D3 X( }6 R. f> forward. We are interested in your 900MHz radio to start.
8 e/ D! n9 [: s& A5 m; i- Z2 W
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