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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

) W# B, t) y8 y" q+ m5 ]! x客户要求如下,如果哪家工厂可以做,请和我联系
+ Q3 N+ E. g5 w1 q9 N" n4 t0 p6 T> The application that we have in mind is similar to others that we commonly
w- o( Z. |$ Q > have. If we were to pay for FCC approval, we would want to use the modem
6 M1 m& J1 ]( Y% D0 q > units in all similar applications under the same approval number.
* t! B9 N/ U# Y, O> Therefore, we would like to be able to configure the units to a specific
5 u$ \8 S3 c+ u i- e > application. For the business that we do, this approach will yield more
7 I. }) n, v: k > sales based on the same product and approval. We are interested in the
3 d3 k/ V1 o7 I6 ]7 V7 Z > following specifications:
! Y) |! C, O1 P, r o >
6 e+ d' m: c8 ~- } > - 2 inputs at the Transmitter with three possibilities;
( `* b; p' G) p( b, y > 2 analog
& S4 b* |3 P( B, Y> 2 digital
: ]& H2 _* i1 r- k8 K0 C- G > 1 analog and 1 digital
6 i. O5 K1 ^" H' [>
/ B+ f* G5 O) }3 ^; G O0 K> - 2 outputs at the Receiver with three possibilities to match inputs
0 J' S0 R3 R, w7 F3 \$ c6 G3 H >
* N$ c6 m( l5 B1 s> - Ability to configure/define analog Transmitter input ranges through
2 q& t. l2 T. F8 P) l7 \+ _+ f> simple programming method to correspond with full-range analog Receiver
: _' q: _2 b S > outputs (0 - full voltage).
# N8 x4 A9 R# V V) b >
0 F6 Z; K8 y; @$ L2 ~$ a> - Ability to configure and set sample rates for the inputs.
& V( o( ~, c+ u4 b>
6 b; @5 N: g; H+ X |9 J > - Digital output on Transmitter that turns on during the sampling period.
! T0 [& c) o0 \" d5 `/ F>
4 F0 O0 u7 F9 @! _ > - Ability to configure a power saving Sleep Mode in the Transmitter by
6 t5 V/ h' J% e2 X; }6 Q > both software control and input hardware control.
& w% p$ }9 Y6 U |' E5 G6 a >
5 W/ z$ [( o: v> In order to configure the units, we would need a way to make the
! I" v" `- A1 ?8 B& ^& \ _( x3 u: R> settings. This would preferably be from a computer terminal so that
& h7 d3 y5 r6 @1 J& j. x N > configurations can be saved or easily duplicated for production volumes.
; B6 j; ]# ]: j+ D' d3 y# g > The units should be small and compact with shielding, and able to mount
$ \: b: [) W: z/ G9 H> to a printed circuit board with header connector.
6 K% H3 N7 L2 V7 u. D& v5 X >
2 x- Q9 e8 o3 \ > At this time, we are interested in samples of a pair of modems that
$ e B8 Z' |* Q9 B' I/ [# L> might be similar to this proposed system. We do not expect that you
, |4 n9 ^2 C2 q9 q9 B$ q' Y: t > provide all of these specifications at this time. I can describe our
. @5 p. W8 F9 ` h: R, I4 S+ x1 X > immediate application needs in the next email if this project is of
9 l3 J7 m. k4 t* K9 j" ]0 j > interest to you. Perhaps you can make the samples by those
: I- J( q- J" S- E > specifications. This will allow us to test your radios before we move
7 e( L# j6 I# ?, t7 r% j> forward. We are interested in your 900MHz radio to start.
7 N/ D2 j4 K" t1 T
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