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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

& h0 k/ ]+ Y1 w) h. j2 i客户要求如下,如果哪家工厂可以做,请和我联系
! p" l* q( I$ N > The application that we have in mind is similar to others that we commonly
0 L' U/ J6 ]. K2 Q Q8 a9 [ > have. If we were to pay for FCC approval, we would want to use the modem
- a$ ^8 i7 P+ ]5 ^5 ~+ N> units in all similar applications under the same approval number.
6 _% t' F; A `( J) ^) O/ p > Therefore, we would like to be able to configure the units to a specific
3 M0 Z& R* Y/ f; ?8 @5 s; g0 Z > application. For the business that we do, this approach will yield more
6 k ^+ R& r! X% e> sales based on the same product and approval. We are interested in the
1 \8 b0 ~8 J# r> following specifications:
) r* r" a: i, v9 k. e- h D" `3 |+ S >
. g: J' ^$ M9 v > - 2 inputs at the Transmitter with three possibilities;
8 Z( Y/ r% b% ^; l > 2 analog
; D4 ]( V' r- x! C6 w: l+ Y> 2 digital
H* `% @' G' f > 1 analog and 1 digital
' k% O+ ?; i; M. {% _6 i+ E; ] >
9 p; Y' B; {. A3 y > - 2 outputs at the Receiver with three possibilities to match inputs
3 l+ o2 b6 |' M1 n >
7 d6 A9 d$ A5 Y > - Ability to configure/define analog Transmitter input ranges through
+ J$ e4 ]* X5 I; u > simple programming method to correspond with full-range analog Receiver
' U2 K- t6 t1 m0 O2 g > outputs (0 - full voltage).
' f* M$ {- ], W; m9 H >
/ L1 S. z# v) T+ j1 S2 R e > - Ability to configure and set sample rates for the inputs.
" c! E6 d! ` O: X- v! j' [' g>
* n8 g6 F- P) J$ T) x H. \ > - Digital output on Transmitter that turns on during the sampling period.
! A0 N$ c1 Z1 g) W$ h& Z( r>
" u- K- F. s7 h* q* \> - Ability to configure a power saving Sleep Mode in the Transmitter by
x: @3 e5 a9 M: F% s> both software control and input hardware control.
! s6 M! n" V0 F, } a& g>
/ T; Q! c W2 V: M' C P) P > In order to configure the units, we would need a way to make the
: Y( A- X* ^9 N# ^, h# w2 g2 f> settings. This would preferably be from a computer terminal so that
$ Y8 B0 O$ Q% T4 J: d* ]8 }7 b8 f/ ?> configurations can be saved or easily duplicated for production volumes.
" f* k. _, R8 S2 y+ b! D > The units should be small and compact with shielding, and able to mount
|3 F4 ^) r+ z, y8 P/ s> to a printed circuit board with header connector.
# \' J- Z" Z9 Q3 e' `1 y; |>
, M0 I T! D/ P! c/ f( U. T> At this time, we are interested in samples of a pair of modems that
/ S) K$ @+ J5 Y& d R. t, F7 h3 Q> might be similar to this proposed system. We do not expect that you
' y0 G' ?$ ]1 B/ d! h> provide all of these specifications at this time. I can describe our
( Q Q! y4 K w. k' i > immediate application needs in the next email if this project is of
' n8 f( @3 N4 i3 H > interest to you. Perhaps you can make the samples by those
5 O" W2 d1 H2 ?+ v. L, c7 u> specifications. This will allow us to test your radios before we move
`& K* h. T) ^% R8 s/ } > forward. We are interested in your 900MHz radio to start.
. {$ L5 C2 g* m& h
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