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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' V3 i5 V K9 a, D" ?& O/ z客户要求如下,如果哪家工厂可以做,请和我联系
$ C% _# m! a$ r8 A1 x> The application that we have in mind is similar to others that we commonly
2 [. I5 ?$ q& ~& f/ w; e> have. If we were to pay for FCC approval, we would want to use the modem
9 e/ h% l- u2 t* r4 v> units in all similar applications under the same approval number.
& m' m! e/ A. J& r& f! C w > Therefore, we would like to be able to configure the units to a specific
2 n) P2 N/ N7 |/ T9 D > application. For the business that we do, this approach will yield more
% S3 t9 r, R: W. _1 p> sales based on the same product and approval. We are interested in the
. ?- X7 n* n/ M9 S% T> following specifications:
5 {' b' X; ^" \& @( u* b& U>
+ ?4 o$ V4 w- f4 s$ I > - 2 inputs at the Transmitter with three possibilities;
" g# ~7 n8 {9 Y. X8 V/ x> 2 analog
4 o X8 x q# u, V3 b > 2 digital
# O; o! B6 v8 T0 q( j > 1 analog and 1 digital
! G" d& w/ ?2 T1 v' [- {>
3 G! u9 b$ n' I> - 2 outputs at the Receiver with three possibilities to match inputs
K* P9 R9 \/ Y- U) ]& I8 M>
# p- C$ K4 s' y) R+ k' ~. D; d1 j> - Ability to configure/define analog Transmitter input ranges through
9 {3 }% K, K9 i# h > simple programming method to correspond with full-range analog Receiver
/ c" z, c' P% x4 t> outputs (0 - full voltage).
0 t( P" k1 m4 T1 _6 k) @& | >
+ B$ N7 ]# s* _> - Ability to configure and set sample rates for the inputs.
# A5 r* D6 a- u- o# y! S >
7 y8 U2 Q2 u4 F% Z0 i5 H > - Digital output on Transmitter that turns on during the sampling period.
! |9 u0 G+ E2 T& {/ J >
/ W9 C+ i) U+ \( R8 h> - Ability to configure a power saving Sleep Mode in the Transmitter by
% P/ s% M4 Q/ {2 Q+ y2 c> both software control and input hardware control.
, b, b0 U3 u) B& Y) k+ {$ P >
3 G }* F, ^! ]' C! K j% ?> In order to configure the units, we would need a way to make the
6 E0 `0 h3 M, u: A% m > settings. This would preferably be from a computer terminal so that
' z8 L; J) H% ?$ {> configurations can be saved or easily duplicated for production volumes.
% y0 D+ @/ p- j> The units should be small and compact with shielding, and able to mount
# R; U* [& b6 I" K& f/ {> to a printed circuit board with header connector.
. {3 n- d" f8 F+ C! w+ H>
$ [7 u6 Z) D4 p! S* J8 f: X7 Y > At this time, we are interested in samples of a pair of modems that
, K+ [$ k5 h. H' m* Z2 E* r3 N > might be similar to this proposed system. We do not expect that you
( L, W; ^. v9 E> provide all of these specifications at this time. I can describe our
, y8 f- g+ U. O- X! Z( x" X > immediate application needs in the next email if this project is of
, u2 ~# {' o8 ~7 r2 b' P* @4 n6 H6 C: h > interest to you. Perhaps you can make the samples by those
1 J' F6 V& d% g6 s+ S2 e> specifications. This will allow us to test your radios before we move
5 l, `& p: ?* ? `$ U: P> forward. We are interested in your 900MHz radio to start.
% b- U7 Z0 P2 n/ n9 y- h
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