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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

1 y' ~5 l& Z/ `8 V }* w 客户要求如下,如果哪家工厂可以做,请和我联系
9 P; U W1 S2 f0 M > The application that we have in mind is similar to others that we commonly
6 U/ T% ?8 n' F7 k! o> have. If we were to pay for FCC approval, we would want to use the modem
) c, n& {* t$ H5 F> units in all similar applications under the same approval number.
. z$ `& e7 G& W0 b0 i/ B> Therefore, we would like to be able to configure the units to a specific
* D2 D$ A& b: t: ` > application. For the business that we do, this approach will yield more
' P/ x+ _; }' ?4 A( S! [# }: \> sales based on the same product and approval. We are interested in the
, k* A3 x% ?4 f$ N+ K' v5 ^) h> following specifications:
# c a: B$ Y5 s3 y9 k0 i) N>
% E6 m @- f% ?1 ^ > - 2 inputs at the Transmitter with three possibilities;
' R7 W$ Z" {% ?% x- L0 A/ F Q> 2 analog
* X. D7 m% { w0 T) [3 _7 s > 2 digital
& E( L* a% s$ H, a N- W+ u8 F, U > 1 analog and 1 digital
0 p# n/ Z H, A! _& ` >
& C1 |4 J+ [' I> - 2 outputs at the Receiver with three possibilities to match inputs
2 N }1 ]& c, _>
. h2 J' e1 }, B# d* V > - Ability to configure/define analog Transmitter input ranges through
4 {. X( U5 m" F! s0 O0 N! ~# N, t" v> simple programming method to correspond with full-range analog Receiver
( p$ q, h P6 }> outputs (0 - full voltage).
6 V& ~+ @' A7 v6 g# b8 D>
, q' f/ o, B! E: ]6 g8 w> - Ability to configure and set sample rates for the inputs.
) Z! Y. ~- C8 O- g>
' B8 g L. x4 ~" i > - Digital output on Transmitter that turns on during the sampling period.
, |! ^+ s* A& l0 ^( { >
/ \2 R0 k! ?; ]; I/ E9 x% [ > - Ability to configure a power saving Sleep Mode in the Transmitter by
* I) {' K1 N5 s > both software control and input hardware control.
& R) @, J# n$ I4 G7 @ >
p+ h) B% G" d& T3 N > In order to configure the units, we would need a way to make the
* t% u3 o+ @7 _! S3 E> settings. This would preferably be from a computer terminal so that
# o9 Q7 {( `6 B, T> configurations can be saved or easily duplicated for production volumes.
: R2 B3 h, b& D- T > The units should be small and compact with shielding, and able to mount
6 D9 k% ^; s! P* l5 w > to a printed circuit board with header connector.
! n+ U$ Q4 [7 F0 E# V; {1 O>
. z4 N3 @+ W6 w> At this time, we are interested in samples of a pair of modems that
5 p* _) m$ k Y% c> might be similar to this proposed system. We do not expect that you
. b5 u9 U1 z8 F9 U" k% j& k > provide all of these specifications at this time. I can describe our
5 d2 K4 l( w, f4 v9 D5 G > immediate application needs in the next email if this project is of
1 L4 g. H5 c3 U [% h4 M > interest to you. Perhaps you can make the samples by those
V& Q* i/ Q# D- J2 |& I8 p > specifications. This will allow us to test your radios before we move
" }6 |3 K% f h& g) ?7 y8 Q > forward. We are interested in your 900MHz radio to start.
5 L4 V" S4 i: X8 u- B) H* }
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