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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

* S# Y1 p$ z' P6 \& \5 {! {客户要求如下,如果哪家工厂可以做,请和我联系
# `0 w) \, |: P> The application that we have in mind is similar to others that we commonly
7 q2 @# X P: N, c" q2 Q+ r6 n5 a > have. If we were to pay for FCC approval, we would want to use the modem
8 q7 r/ _& K/ u" h. F > units in all similar applications under the same approval number.
" F. c# K2 f5 F. I. J% G0 x. g> Therefore, we would like to be able to configure the units to a specific
! b# O; N1 n& n2 Z; M> application. For the business that we do, this approach will yield more
- B+ ~# S/ @) ]2 k7 E8 [3 J9 p# X> sales based on the same product and approval. We are interested in the
5 H; {4 S8 G( P- b> following specifications:
6 s( \2 K. |* Q) K( z/ b >
. b( p; F2 L+ y- l6 L > - 2 inputs at the Transmitter with three possibilities;
1 U3 M$ d7 C+ A> 2 analog
# z B4 Y4 ~" w0 |$ E" p0 I > 2 digital
1 R" _. Z" s0 u- P7 R$ i> 1 analog and 1 digital
$ Q. E" j2 p) D Z* K& T >
+ q3 }9 C# Y% ] > - 2 outputs at the Receiver with three possibilities to match inputs
0 k8 H; r5 {7 j1 z6 i3 P) y' | >
% {: E8 G# _# A6 y. x6 {* e > - Ability to configure/define analog Transmitter input ranges through
; ~ m3 h! @/ _! @; V > simple programming method to correspond with full-range analog Receiver
8 d, t3 k% O: R' S% m! e9 n2 S5 y$ h > outputs (0 - full voltage).
! c+ V* g+ l5 B* ^4 j8 `5 ^>
+ ~1 M9 j. l% K) d> - Ability to configure and set sample rates for the inputs.
. E, o2 ?9 z, C) Y>
9 O; `( {" S. R+ B% _# x6 X. k: G > - Digital output on Transmitter that turns on during the sampling period.
, F. K" _! C' P3 r. D' | >
2 p2 I6 y5 L) a$ I8 D4 [ > - Ability to configure a power saving Sleep Mode in the Transmitter by
, K& U! S$ r9 T, j, v" w> both software control and input hardware control.
: p' z) \4 L+ V# S. ~ >
7 j8 w$ C L+ @. ?( l5 G > In order to configure the units, we would need a way to make the
0 o9 D) s& P4 A4 L/ \$ y3 z > settings. This would preferably be from a computer terminal so that
3 r) t1 @) c0 l! D/ r/ h$ N > configurations can be saved or easily duplicated for production volumes.
3 G f( b; Q5 k7 n4 `4 z > The units should be small and compact with shielding, and able to mount
- ]. e+ Y' V1 k$ ^* b2 |2 b> to a printed circuit board with header connector.
/ ?4 y, w$ Y% M>
6 v0 V% c3 M3 X: y > At this time, we are interested in samples of a pair of modems that
8 `) s# [# u7 J% K& [> might be similar to this proposed system. We do not expect that you
! K) e3 l. e$ j: M' Q% x1 [ > provide all of these specifications at this time. I can describe our
+ o9 {' _; O4 Q+ z7 k> immediate application needs in the next email if this project is of
5 I8 \+ Z; |; N8 d: _> interest to you. Perhaps you can make the samples by those
+ c' K" c+ t$ p > specifications. This will allow us to test your radios before we move
* K( E6 d1 p, g+ ?5 |" j1 o! f3 D > forward. We are interested in your 900MHz radio to start.
- j9 O; F" N1 e; a# Q1 B
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