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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

" r; A$ B* I; A, h* N 客户要求如下,如果哪家工厂可以做,请和我联系
! C, K; U; c' M9 V6 G > The application that we have in mind is similar to others that we commonly
3 K% e& a0 Y- a& D- }> have. If we were to pay for FCC approval, we would want to use the modem
! N, T6 F+ K- L/ g. j9 D1 d# R F> units in all similar applications under the same approval number.
; @* @2 r3 M1 f( Q> Therefore, we would like to be able to configure the units to a specific
9 V$ [; Z1 N+ \0 C) X: _% ? > application. For the business that we do, this approach will yield more
$ ?: Y T; g2 x> sales based on the same product and approval. We are interested in the
3 A- @3 o# ~% B2 D9 |5 E$ ]7 g4 B > following specifications:
" j9 T5 q4 Y e: y% T' {>
5 I1 e' e7 Y5 I6 G' x> - 2 inputs at the Transmitter with three possibilities;
) `$ [: ^- k" P# K) T. r6 J# ]( U> 2 analog
( ^! d; l; B) I: i# e: c$ }> 2 digital
( ^ B; U+ f0 I& b2 w> 1 analog and 1 digital
2 [& a% ]0 D$ k k Q >
. J- F5 b4 B( O6 T> - 2 outputs at the Receiver with three possibilities to match inputs
) n3 E& J4 V7 u* |. m>
( j# `+ B; h- p5 w5 v. H > - Ability to configure/define analog Transmitter input ranges through
. k( E# V8 }, W> simple programming method to correspond with full-range analog Receiver
8 n, M" a( g, [! Y5 Y X( ? > outputs (0 - full voltage).
7 I5 J6 W7 x2 o/ R6 V! ~) Z >
# j3 ~& O2 P6 z; w* n# o8 @# y > - Ability to configure and set sample rates for the inputs.
7 o2 ~: T) K) ]6 x>
; l' e1 n' O" P; y% r T5 L. I > - Digital output on Transmitter that turns on during the sampling period.
) o+ {. \& T0 c* ]& ]>
+ ?7 t% ^! n& Z8 d" r2 K- s > - Ability to configure a power saving Sleep Mode in the Transmitter by
% ?$ s) u/ G& ?& }8 S U> both software control and input hardware control.
; w0 v/ q# S- ] T& j% K >
' p' B' \: k4 y$ v> In order to configure the units, we would need a way to make the
* U' S$ A: ^& O) v> settings. This would preferably be from a computer terminal so that
3 e1 T0 o. x5 U Y > configurations can be saved or easily duplicated for production volumes.
: r7 b; n/ L, l* }* J2 P> The units should be small and compact with shielding, and able to mount
: p0 l4 p2 O9 \> to a printed circuit board with header connector.
! \( p' d; O8 M7 l' ?>
' T7 W6 I; z& \. X1 [- u > At this time, we are interested in samples of a pair of modems that
8 H0 K% i4 Y1 v+ D+ G3 U3 E> might be similar to this proposed system. We do not expect that you
5 o8 Q4 X4 ~2 Z& }) ?! k> provide all of these specifications at this time. I can describe our
* T# [, [6 Y5 ~& P. z8 {> immediate application needs in the next email if this project is of
! }" |( \, c+ d> interest to you. Perhaps you can make the samples by those
0 k7 M% L7 b% R; e W7 c8 Z `6 M2 c7 v> specifications. This will allow us to test your radios before we move
8 u: p1 [" N4 Z$ t6 K> forward. We are interested in your 900MHz radio to start.
4 ^1 \7 k1 O- n4 v
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