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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

8 \* i2 [! G- I) m- y$ p0 j0 R9 n客户要求如下,如果哪家工厂可以做,请和我联系
4 @7 ~' Y# S1 N# X5 D$ { > The application that we have in mind is similar to others that we commonly
! s& Z( k2 a! h4 T > have. If we were to pay for FCC approval, we would want to use the modem
( N- V/ C( d7 ? > units in all similar applications under the same approval number.
% x. T3 @! {0 o, n H> Therefore, we would like to be able to configure the units to a specific
: g* i$ s3 N ^. d4 Z> application. For the business that we do, this approach will yield more
+ a& }* l. C0 L3 n' P" B4 ? > sales based on the same product and approval. We are interested in the
" ] p U3 D1 g2 [! v > following specifications:
7 G8 b% g' u% d6 K9 G>
/ L3 r( l1 o0 g6 O9 K$ E J0 |5 I+ {& K > - 2 inputs at the Transmitter with three possibilities;
- E7 x: L! {; Z: F9 v- Q# G/ i> 2 analog
8 E. z4 p9 b6 u+ r% a> 2 digital
/ P5 x2 r. g; @2 r4 @# X7 ]% l' H> 1 analog and 1 digital
5 C- u# ^# n- v& C >
5 C9 K% F; _$ W, F) g5 L$ j> - 2 outputs at the Receiver with three possibilities to match inputs
! z4 {: o# b! Y$ c! B>
: b; ^' N- \7 w' T0 Z7 R> - Ability to configure/define analog Transmitter input ranges through
7 ]+ D. J. _1 L3 ^> simple programming method to correspond with full-range analog Receiver
2 K0 v& p9 l, L6 p > outputs (0 - full voltage).
3 J" M! a0 [) {2 B% S4 C7 l0 j >
3 N: U: c# U7 b. i3 X2 k8 A > - Ability to configure and set sample rates for the inputs.
2 g# P& h* b! r; O+ M8 j, Y4 D >
& Q- S& |8 H6 j" I2 ]+ b. k > - Digital output on Transmitter that turns on during the sampling period.
) k! [5 H; S9 G! V/ @4 z>
4 q" `8 A0 v. d& b > - Ability to configure a power saving Sleep Mode in the Transmitter by
* j l* O4 c+ b% ~> both software control and input hardware control.
9 K- t& l; t" h>
- R# o; `, T; h/ l+ z> In order to configure the units, we would need a way to make the
# {! Y+ j/ S7 x3 ^: q! P> settings. This would preferably be from a computer terminal so that
1 v0 K8 A J1 K& y7 _+ S' B- } > configurations can be saved or easily duplicated for production volumes.
: }' s2 m: s s$ M+ |* z> The units should be small and compact with shielding, and able to mount
! [5 D8 c* [$ h6 f1 ]> to a printed circuit board with header connector.
3 ]' d; p; Y: j- Y, l >
5 J' ~" ?1 @. Y' v > At this time, we are interested in samples of a pair of modems that
% v% D3 R7 O, u. H0 e5 j; B> might be similar to this proposed system. We do not expect that you
( Y2 u& l3 V7 a9 T; U! q > provide all of these specifications at this time. I can describe our
* ?. P: u6 g% |, |8 \ > immediate application needs in the next email if this project is of
/ Y9 W8 ]* w8 T* J2 d# ~> interest to you. Perhaps you can make the samples by those
, [2 a# w/ A* Y) r: P1 l* n > specifications. This will allow us to test your radios before we move
* }# K' U/ U2 d+ ~% O( T% \& k > forward. We are interested in your 900MHz radio to start.
/ H: a/ {8 C0 Q( ] H1 a* ^$ r
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