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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

- l# w9 f2 n. f' V) v! f0 m客户要求如下,如果哪家工厂可以做,请和我联系
& o" a( a( ~* n. c4 j/ Z# _& g> The application that we have in mind is similar to others that we commonly
3 R3 W) `9 |9 t& A! \2 H > have. If we were to pay for FCC approval, we would want to use the modem
' v' d' b" B; z) D$ v> units in all similar applications under the same approval number.
5 R$ p' o5 c: r" ~$ B; A > Therefore, we would like to be able to configure the units to a specific
" f# |' ^+ W5 g5 o' P+ o# l+ Z( @; `1 o > application. For the business that we do, this approach will yield more
7 Q3 H! s4 s7 d9 U* E > sales based on the same product and approval. We are interested in the
: t- p8 W( ] ^9 O6 P$ W/ E> following specifications:
' }/ [: e8 \2 b K% t' y >
! u# w1 `/ n" l* L, v$ ?: `> - 2 inputs at the Transmitter with three possibilities;
' i" Z% n/ s4 f7 u: n$ A> 2 analog
" H) ?' C$ Y% x0 ~0 t> 2 digital
2 ^. f+ m3 \* D9 ~& n5 L > 1 analog and 1 digital
. U. o! ~; g. v>
9 B( t& w9 x/ K > - 2 outputs at the Receiver with three possibilities to match inputs
1 j0 @: s- ]+ i# A>
7 c; x9 f) l K% g8 Z+ v8 H. Z* ]> - Ability to configure/define analog Transmitter input ranges through
/ B$ q* y) p% a) v1 {' V> simple programming method to correspond with full-range analog Receiver
0 n A' h) M) m' v> outputs (0 - full voltage).
9 k* z2 @) i2 y$ ?* A% m >
6 w5 }' H9 F5 A, d8 H# t> - Ability to configure and set sample rates for the inputs.
: S! a# ]' |; H/ \+ _3 c: c >
9 I1 N. e- @* @2 j% u > - Digital output on Transmitter that turns on during the sampling period.
6 |1 U: z' R+ D( E% l/ }3 S >
, y9 J! b) m5 q! Q2 c: Q8 f% }$ T0 C1 t > - Ability to configure a power saving Sleep Mode in the Transmitter by
6 O! S& C" r8 A; Y3 n> both software control and input hardware control.
: f2 V/ n, ^2 y# f% n( S) t" w>
6 ?% i+ a% n; C$ E5 F+ \! J > In order to configure the units, we would need a way to make the
6 }7 A; q. W* ?& y4 @( n, c+ l/ u' U > settings. This would preferably be from a computer terminal so that
- p/ q6 A2 [* Y" _$ t! |1 g > configurations can be saved or easily duplicated for production volumes.
9 o( r: D( ?& Y l# K" L& J > The units should be small and compact with shielding, and able to mount
; j- J$ k( _+ g8 }, X- s+ j> to a printed circuit board with header connector.
# R1 Y0 \: w( U) r6 b M- U6 F# r) a3 j >
- p: n1 ]: P5 u> At this time, we are interested in samples of a pair of modems that
$ f/ e; Z/ \, }0 G; e# H" r > might be similar to this proposed system. We do not expect that you
6 u% |7 j2 e+ X$ f5 l3 }> provide all of these specifications at this time. I can describe our
, T. \. A, Z# e> immediate application needs in the next email if this project is of
6 [5 \/ K; s9 g4 \3 Y, r" ` > interest to you. Perhaps you can make the samples by those
' k7 \. M5 U8 C# S5 U0 d > specifications. This will allow us to test your radios before we move
# p3 a y( [& v6 R > forward. We are interested in your 900MHz radio to start.
a* ~" N6 [; r% h$ Z* K" v
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