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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

. r& O" N; G7 @8 e 客户要求如下,如果哪家工厂可以做,请和我联系
. K" i& A1 n2 Z ?6 X" o> The application that we have in mind is similar to others that we commonly
+ X* ]* I6 i0 \% a* T5 d> have. If we were to pay for FCC approval, we would want to use the modem
$ j$ \" M8 u3 W5 a w > units in all similar applications under the same approval number.
) V8 N0 G/ ]* q; h- }& b> Therefore, we would like to be able to configure the units to a specific
6 c- }% N4 O2 M( c! S P> application. For the business that we do, this approach will yield more
, O8 d/ C t1 i) ]2 s/ M; ?> sales based on the same product and approval. We are interested in the
+ P" O( a5 P8 B! p v" l> following specifications:
4 W; k: F( i! b7 h>
1 J# V" o/ K2 @/ p" S8 ^6 l$ g> - 2 inputs at the Transmitter with three possibilities;
8 o( c+ h7 G! o/ k( C9 S0 Y* }> 2 analog
! a) D8 |- w# o3 l# H > 2 digital
0 @7 f8 N/ H/ D+ r6 a" D) M > 1 analog and 1 digital
% b5 c" }2 L6 M1 n( O3 Z% X >
! I& K* d* r/ D> - 2 outputs at the Receiver with three possibilities to match inputs
. _) V4 w+ d) y) s# P- a>
4 t! {. M. t! a. D+ @, w: G > - Ability to configure/define analog Transmitter input ranges through
4 C! ~, P0 I$ x > simple programming method to correspond with full-range analog Receiver
! u$ c$ |, N1 l> outputs (0 - full voltage).
6 F1 ~% Y1 N9 L. `4 q" b# Z; k+ ` >
& E2 d3 p( O! @2 M# h' C > - Ability to configure and set sample rates for the inputs.
0 @) M% Y* s2 `$ W>
; D/ W6 M/ D& V> - Digital output on Transmitter that turns on during the sampling period.
9 A3 Q7 _& i. f+ ^>
2 L. N% z& y: R0 s# e$ u8 f> - Ability to configure a power saving Sleep Mode in the Transmitter by
( A* E& ] I9 {$ V) s6 E > both software control and input hardware control.
. j; F, Y! Z- ~! c$ g>
8 @/ P" }* W$ f8 J" e> In order to configure the units, we would need a way to make the
: r; G6 V0 K9 a: E1 v! m+ y > settings. This would preferably be from a computer terminal so that
9 m% |9 i6 }! @ J > configurations can be saved or easily duplicated for production volumes.
J+ [4 x& M0 ^) e0 s > The units should be small and compact with shielding, and able to mount
& O5 D: I9 C4 | > to a printed circuit board with header connector.
/ \7 Y6 ?$ r! y: \7 E4 e* P% Z >
/ g7 H }6 ~1 X4 |> At this time, we are interested in samples of a pair of modems that
4 A' U5 Y& c* Q& T: A> might be similar to this proposed system. We do not expect that you
/ C# u5 p S) y/ p) }! X> provide all of these specifications at this time. I can describe our
: O# t; N& I5 u( F> immediate application needs in the next email if this project is of
# b+ w, O' O1 @% e( s- I3 O > interest to you. Perhaps you can make the samples by those
4 n# b# P7 n7 r, s- I* W > specifications. This will allow us to test your radios before we move
6 m, I0 h" y5 F8 s5 Z, i > forward. We are interested in your 900MHz radio to start.
" b! ]3 O% v5 P& M7 @) c# {( |7 h
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