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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

. ?6 g) u; H4 C: A( T- f客户要求如下,如果哪家工厂可以做,请和我联系
' Q# @- h" \; P5 F9 g' g > The application that we have in mind is similar to others that we commonly
' I* J: X$ m J2 L+ b- S& g > have. If we were to pay for FCC approval, we would want to use the modem
4 H+ T/ a* R, |* l4 x7 D: T5 V > units in all similar applications under the same approval number.
3 k( O* S% H& W- M- x > Therefore, we would like to be able to configure the units to a specific
' d& A- W5 k5 G: Q) H* m& G > application. For the business that we do, this approach will yield more
' h( h: A3 g8 {9 D# D> sales based on the same product and approval. We are interested in the
2 t2 u" o7 Z! ^7 {: `4 O > following specifications:
7 `( J! R \" ~6 B; {# V >
& G2 G. n; ? N4 h > - 2 inputs at the Transmitter with three possibilities;
* m \( W( t) v( U> 2 analog
" T7 M& o4 \$ G& l6 z- T > 2 digital
1 u/ `* x. r! D8 H& |5 |> 1 analog and 1 digital
7 [6 ]' i# |7 Q' z) w >
9 x' M- a" J3 J. k2 G > - 2 outputs at the Receiver with three possibilities to match inputs
7 d3 i6 m5 D2 f, J; L. l! ?>
| y0 b- L, N F, p> - Ability to configure/define analog Transmitter input ranges through
% n9 z+ L0 M: U) x > simple programming method to correspond with full-range analog Receiver
4 q: z: N2 K- M; f9 ] K8 _> outputs (0 - full voltage).
6 K1 i8 {" ?, E; @ >
0 g: Z: z' o+ o; F" K) r' ~. X> - Ability to configure and set sample rates for the inputs.
1 C3 u* f. p4 c/ O>
$ h8 k4 I$ N7 h9 N > - Digital output on Transmitter that turns on during the sampling period.
" c9 O8 n3 ^; A; q& s; E >
' ?- U0 _) B. c > - Ability to configure a power saving Sleep Mode in the Transmitter by
& P5 n. W8 J! w8 \* s> both software control and input hardware control.
; S9 R4 Z3 P+ j7 ]. m>
3 V# W# y E" Q: X. \9 ]0 \) r> In order to configure the units, we would need a way to make the
3 F6 ~) F% p- w3 u* |$ J! H5 L > settings. This would preferably be from a computer terminal so that
8 t# O. Z0 V5 q4 r/ v, ?7 l% u/ Q> configurations can be saved or easily duplicated for production volumes.
, O: Z1 }1 x l6 S3 M > The units should be small and compact with shielding, and able to mount
: Z: H) p! H( o, M! s) ~ > to a printed circuit board with header connector.
$ n: i1 {4 P+ g0 k( m. U >
- a+ P0 |2 ~0 f l> At this time, we are interested in samples of a pair of modems that
0 m' ^4 ~7 O) C2 S$ K( t# [> might be similar to this proposed system. We do not expect that you
: p0 d7 Q; |. D- b( Q4 ?' p > provide all of these specifications at this time. I can describe our
4 Y) _" f: @" z: N, _, S0 j6 x > immediate application needs in the next email if this project is of
. S; Z& S8 e4 X1 H. l, f _ > interest to you. Perhaps you can make the samples by those
3 N& o5 V9 X# L# g. D > specifications. This will allow us to test your radios before we move
+ Q2 r5 D% w$ k* ]! ^ > forward. We are interested in your 900MHz radio to start.
; O/ A9 z( B8 D; r+ r
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