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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

/ k5 P- A" p6 X客户要求如下,如果哪家工厂可以做,请和我联系
& J8 B3 I+ C0 Q# z3 x: \ > The application that we have in mind is similar to others that we commonly
* O e! ?# x+ V g" j; e > have. If we were to pay for FCC approval, we would want to use the modem
+ c9 D5 A& A2 B; @1 r2 U> units in all similar applications under the same approval number.
% J1 h* k7 H0 g0 k8 h > Therefore, we would like to be able to configure the units to a specific
8 x2 p, T. y; Q+ S* R9 @4 J. m> application. For the business that we do, this approach will yield more
# s2 o# k' [* ?" u > sales based on the same product and approval. We are interested in the
; P" h: p8 v' @5 X* ~: x" }> following specifications:
2 Y+ K& d& c) w: ]7 |3 M) M>
( S" l8 j o7 A* Z, ~) W> - 2 inputs at the Transmitter with three possibilities;
1 L0 M8 t! K/ @( H3 d! v1 F> 2 analog
; g5 }) i# |2 N; G: n) J > 2 digital
+ C( O; b# M7 w C' w; x, l> 1 analog and 1 digital
3 o6 S. C9 B/ U5 F2 c1 _$ G5 }/ @& F >
3 ~7 s2 f6 `& r/ X9 N+ ?4 \: ^9 d> - 2 outputs at the Receiver with three possibilities to match inputs
3 {: m* F$ p1 m; F- w( ` >
5 M0 T9 ?% Q) \# W > - Ability to configure/define analog Transmitter input ranges through
0 F! O3 D: h6 c: ~/ {( s2 K> simple programming method to correspond with full-range analog Receiver
9 o( M- X0 O. X8 R7 { > outputs (0 - full voltage).
+ D, s& m" f" K/ x >
5 Y- X9 I" B) l ?+ {; T4 C0 G> - Ability to configure and set sample rates for the inputs.
; d& D# Q. C5 y( f# ~& [9 Z >
3 J3 d$ M1 r) Q4 o* A> - Digital output on Transmitter that turns on during the sampling period.
/ I! E( y! G4 f>
# m' a& u4 R% \% o! J3 Z > - Ability to configure a power saving Sleep Mode in the Transmitter by
+ F( z9 L- @+ z1 Z> both software control and input hardware control.
$ G. }6 k3 |8 U# {# C! v >
) I7 E7 }0 l8 g# d; T: |> In order to configure the units, we would need a way to make the
" V) G1 T; @9 O( o) m7 Q! x* X> settings. This would preferably be from a computer terminal so that
) d& \# }& S; T" A > configurations can be saved or easily duplicated for production volumes.
2 |' n, Z, i2 Q) X* j' u> The units should be small and compact with shielding, and able to mount
( }# z" |9 m2 ?* I8 x1 g2 C > to a printed circuit board with header connector.
: z, n' y K, h* s3 q >
5 O: X8 H# q% `! z7 W > At this time, we are interested in samples of a pair of modems that
2 R& D" i8 X5 \> might be similar to this proposed system. We do not expect that you
7 P: D# g( O) _9 M! R> provide all of these specifications at this time. I can describe our
2 f4 [9 g0 w7 M% J% Y% P0 i; ~9 D > immediate application needs in the next email if this project is of
/ y, y7 v2 ]5 P1 S. B> interest to you. Perhaps you can make the samples by those
T" N- V9 `6 k! a% K8 F4 i, _% y > specifications. This will allow us to test your radios before we move
; O8 y7 X% s( t( E( l > forward. We are interested in your 900MHz radio to start.
9 i( C7 h- [) `6 c7 R8 D" w+ @6 C
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