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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

: V4 G$ z' V3 }8 A. l/ U客户要求如下,如果哪家工厂可以做,请和我联系
4 U) B6 }" E' H, k> The application that we have in mind is similar to others that we commonly
# ]6 F% \) k6 K7 w/ D; n' G% M- Q > have. If we were to pay for FCC approval, we would want to use the modem
1 A4 w1 Q( @) A/ y > units in all similar applications under the same approval number.
+ d: g' d% ?/ q/ p+ o. o > Therefore, we would like to be able to configure the units to a specific
- ]1 v( g v; ^* V* s > application. For the business that we do, this approach will yield more
$ E0 h- b3 }# p8 I I" | > sales based on the same product and approval. We are interested in the
8 r! r8 S# }% t/ q1 }> following specifications:
^7 g+ [" w% f$ ~4 E3 ~" K# N% b>
1 B) |; g" J4 ~7 W8 C > - 2 inputs at the Transmitter with three possibilities;
" x9 A- R, v/ Q/ T+ J, k' X6 d> 2 analog
5 F+ }# ?& v) s" N3 \2 ~+ Z > 2 digital
, V4 I. ?4 C& f/ s+ `3 ` n6 v B4 _ > 1 analog and 1 digital
+ h1 u" ?$ a% k, f>
9 ~& U; u7 _4 @# n* F. p8 r> - 2 outputs at the Receiver with three possibilities to match inputs
5 {; K+ G! @5 V/ M>
$ Q: y; x ~$ _. z0 z4 F> - Ability to configure/define analog Transmitter input ranges through
. Z' c* |- |* V, i( N+ Y7 x) n: `4 w8 q> simple programming method to correspond with full-range analog Receiver
' D5 O: W' ^" Q; W0 B6 ?> outputs (0 - full voltage).
9 w9 t7 X. R: ^( n>
$ ~( f, {" |8 ^. `* \' B > - Ability to configure and set sample rates for the inputs.
# R1 ^" ?; }& | >
/ ]& _+ {/ a' \> - Digital output on Transmitter that turns on during the sampling period.
/ v' _; y2 C8 T+ k! W5 j>
7 s. b4 J( ?! X7 V > - Ability to configure a power saving Sleep Mode in the Transmitter by
& J: k4 y6 v) }. {> both software control and input hardware control.
* L5 w/ I0 g9 r+ [$ l- G3 l4 w>
" b$ H9 g0 O$ y0 a> In order to configure the units, we would need a way to make the
4 p8 {: N) |/ j# T4 ^; _4 t9 _ > settings. This would preferably be from a computer terminal so that
4 H3 U5 l2 i0 |9 M; M > configurations can be saved or easily duplicated for production volumes.
0 D; W/ `* `/ I2 G4 c > The units should be small and compact with shielding, and able to mount
3 z+ y0 c/ J) Q* J. h& ]> to a printed circuit board with header connector.
" @& h# i# E! R% P k8 w >
3 P; E( n" @1 e3 C4 Q# |> At this time, we are interested in samples of a pair of modems that
* T+ @' ~7 e4 b& \* b7 y+ k" b> might be similar to this proposed system. We do not expect that you
* M7 W, G0 S+ S$ E* | > provide all of these specifications at this time. I can describe our
- H* B$ ^* b) [ > immediate application needs in the next email if this project is of
& J4 p$ p% ~4 w# i > interest to you. Perhaps you can make the samples by those
& v- U1 M* v P0 H! @/ _9 v) N> specifications. This will allow us to test your radios before we move
" J( k- q# X! F> forward. We are interested in your 900MHz radio to start.
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