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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

( I6 }& g4 N7 x8 ^7 U 客户要求如下,如果哪家工厂可以做,请和我联系
# P& @6 \" r# C, |- Z( V, ?> The application that we have in mind is similar to others that we commonly
- n9 _6 `/ J9 L2 y( _ > have. If we were to pay for FCC approval, we would want to use the modem
2 y: b: I' r1 x8 d3 U, V# m > units in all similar applications under the same approval number.
0 Q7 `9 [1 i5 D. V( f8 Y i> Therefore, we would like to be able to configure the units to a specific
0 j8 T6 Y* i! ~# _, [# P> application. For the business that we do, this approach will yield more
+ q7 D/ k1 O' `' @; \ > sales based on the same product and approval. We are interested in the
- N: e3 E# }$ w! y2 j& n9 U > following specifications:
( m# c& l2 W6 G/ u >
' e, _" C, A5 b- J1 ?" J, U* H> - 2 inputs at the Transmitter with three possibilities;
2 p' N& P9 w$ D& y1 d5 | > 2 analog
7 W" q+ \% N% W. L > 2 digital
& }& g3 M# h R; ^. G" M. ?> 1 analog and 1 digital
- d0 F' A8 M: h: Y >
' |. a0 Z" M4 S# W > - 2 outputs at the Receiver with three possibilities to match inputs
1 S/ f5 R, S4 r3 B6 B>
3 u5 U6 a, Q1 B+ v > - Ability to configure/define analog Transmitter input ranges through
4 ~/ G/ w4 t. S > simple programming method to correspond with full-range analog Receiver
) n6 N" ^4 K9 w* O > outputs (0 - full voltage).
8 D' B6 d$ @, q# W1 ]6 \ >
$ m' }1 H& D3 n Y > - Ability to configure and set sample rates for the inputs.
$ [3 w5 A0 D( h4 | >
' f$ }: h; d0 |' E > - Digital output on Transmitter that turns on during the sampling period.
/ S+ o# r H# B, R, S( a. a >
8 e- f$ v% h6 ^, Y$ G& p8 C > - Ability to configure a power saving Sleep Mode in the Transmitter by
3 M6 K5 _/ O& @+ _9 H > both software control and input hardware control.
- {* H) b# Q& K$ x>
% E* \3 r6 h# w > In order to configure the units, we would need a way to make the
4 Q0 m7 H* i4 \% m. w0 G& s6 z > settings. This would preferably be from a computer terminal so that
2 T! Y; O, ]; M( P7 s" T > configurations can be saved or easily duplicated for production volumes.
. c1 e/ \7 O( |$ N' h> The units should be small and compact with shielding, and able to mount
7 F* W9 j. w8 [1 n3 ? > to a printed circuit board with header connector.
0 `% n; b6 {! l. N" V$ I. b* R/ Y>
. [2 M+ X) [3 d& p7 K> At this time, we are interested in samples of a pair of modems that
' d j( r* P) g2 \! ~/ o2 Y. o> might be similar to this proposed system. We do not expect that you
) ]# z# j9 c& }' K3 }4 B > provide all of these specifications at this time. I can describe our
5 F- u7 d$ Q0 J4 X, w; o> immediate application needs in the next email if this project is of
b- _8 g) h9 u" q5 U6 Q( P> interest to you. Perhaps you can make the samples by those
" b; }7 G7 ]- R2 ]; k( e > specifications. This will allow us to test your radios before we move
* u! P8 Q9 g1 O6 ~ G' O > forward. We are interested in your 900MHz radio to start.
2 P1 [" T8 w5 l/ Y
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