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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

7 T$ S' i) l( Z7 `7 R4 e客户要求如下,如果哪家工厂可以做,请和我联系
: }4 `) O: g' o: {0 {& B/ h> The application that we have in mind is similar to others that we commonly
5 o( \5 o7 r- |6 v6 C) L > have. If we were to pay for FCC approval, we would want to use the modem
4 _8 j0 w* H1 @( x> units in all similar applications under the same approval number.
( ^) P6 B+ h7 ]> Therefore, we would like to be able to configure the units to a specific
3 c: g) V0 Q! p4 Q > application. For the business that we do, this approach will yield more
6 q o# |( b8 N% p0 `0 n" _: ? > sales based on the same product and approval. We are interested in the
P& n' @& B5 }6 P> following specifications:
( p1 r( \6 W# t% z>
$ i/ P! n8 M: F) f7 U! @> - 2 inputs at the Transmitter with three possibilities;
6 V& S7 B( `$ s. }9 a6 Y$ v, r > 2 analog
* J6 q. [& o- M4 k6 P* s) z C> 2 digital
% Q8 l: `1 k2 z; a& q& b9 I2 b> 1 analog and 1 digital
* {- D; R5 x, [: ]8 A! f' i >
D6 }9 |9 V& k$ {- F" O6 r> - 2 outputs at the Receiver with three possibilities to match inputs
& t8 v$ Y4 J+ k+ H% V >
- _. P' |/ |! C# F9 t) M9 b > - Ability to configure/define analog Transmitter input ranges through
" Z: g$ `! E4 F6 J& S > simple programming method to correspond with full-range analog Receiver
$ _8 X$ M2 L8 Z; C4 J O > outputs (0 - full voltage).
! Q% u5 c5 c0 ~0 \/ X/ I' x>
& G& b/ B' D$ c3 X1 A> - Ability to configure and set sample rates for the inputs.
" ~% N4 z* A, o >
+ W' k8 ?# ?4 u# t5 l> - Digital output on Transmitter that turns on during the sampling period.
$ o, P/ F H( ?. O >
5 {# z: e- U: \) Z1 ^1 k1 ^> - Ability to configure a power saving Sleep Mode in the Transmitter by
& t9 K" ~, s6 ?" l7 `. P; Q* b* s% h > both software control and input hardware control.
4 ~3 Q) f# b2 X- F>
" g# [, I4 J9 h+ r3 ~& Z1 J> In order to configure the units, we would need a way to make the
+ X& O7 C6 Z: r8 t5 |' x. z* z > settings. This would preferably be from a computer terminal so that
: ^; [( c5 X" k> configurations can be saved or easily duplicated for production volumes.
3 L: A7 `" r2 Q. y% j& `" t> The units should be small and compact with shielding, and able to mount
& d. s/ _" A, l; ]; Y > to a printed circuit board with header connector.
8 K+ V' _8 y- X) k2 ~# w# V/ U2 E8 V >
1 S" N, J- ~) }" Y. ^" B > At this time, we are interested in samples of a pair of modems that
* d3 `+ ~2 a2 {& Z, w/ q > might be similar to this proposed system. We do not expect that you
0 Q( g' V* n# a, H> provide all of these specifications at this time. I can describe our
+ }( V2 K" Q0 D# J) m: Y > immediate application needs in the next email if this project is of
& y( B5 U2 q/ L% D$ P# H8 E9 K7 W > interest to you. Perhaps you can make the samples by those
% V# ?2 o+ L, t" u; M; L. V0 N > specifications. This will allow us to test your radios before we move
3 o& X9 Y; B, Y- Z2 D> forward. We are interested in your 900MHz radio to start.
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