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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# ?" J& w 客户要求如下,如果哪家工厂可以做,请和我联系
8 A3 ~! G: Y! }> The application that we have in mind is similar to others that we commonly
5 ~) T% R# c( X9 i8 Q) w( S1 w> have. If we were to pay for FCC approval, we would want to use the modem
1 C4 ~* ^+ E$ w > units in all similar applications under the same approval number.
5 R- b( J! u- o. I a > Therefore, we would like to be able to configure the units to a specific
. w% B# D3 O5 o > application. For the business that we do, this approach will yield more
& N8 {, \& Q6 u E > sales based on the same product and approval. We are interested in the
! J5 _, ?, w" ?& J > following specifications:
! v1 P) h5 b) w$ r9 j/ p* \ >
( z+ E, H7 |6 T4 S > - 2 inputs at the Transmitter with three possibilities;
6 A. R$ H$ a. `8 T1 V > 2 analog
7 F, W$ i% o: I: k1 c9 v > 2 digital
. \3 O& t0 c% b > 1 analog and 1 digital
/ k% g; J o% G I>
- Q# x; U. S: `! f; S> - 2 outputs at the Receiver with three possibilities to match inputs
0 n1 R2 i; z$ x9 S4 d; R >
0 C h2 O) V7 ]: n+ `* H& ]> - Ability to configure/define analog Transmitter input ranges through
- K' }8 }- F/ p5 U( {, X/ u > simple programming method to correspond with full-range analog Receiver
6 N8 D0 O' E1 E' \ @> outputs (0 - full voltage).
6 N1 u8 I7 _/ q! c" q9 { >
; t- [+ u+ p0 A> - Ability to configure and set sample rates for the inputs.
: ^; i9 e: X- ~& E% j+ y >
4 P* @! e$ y9 i, E4 o5 G; q> - Digital output on Transmitter that turns on during the sampling period.
: F, H6 a& l8 i8 m; z6 u >
5 c) P$ ~, u& H# f7 {4 Z > - Ability to configure a power saving Sleep Mode in the Transmitter by
. @; ]& r! [& Y. C5 K> both software control and input hardware control.
' ?1 V- {4 u$ c) v4 h* |; G >
+ {- t- u) b0 b: y2 g > In order to configure the units, we would need a way to make the
, \' o6 ^) Q/ f* Y4 P> settings. This would preferably be from a computer terminal so that
+ P: t3 e+ z$ C! X b3 z5 h > configurations can be saved or easily duplicated for production volumes.
$ o# ^' s% Z/ i9 D0 s/ m > The units should be small and compact with shielding, and able to mount
/ P. P. h& _2 o$ A* X7 N> to a printed circuit board with header connector.
) i" ]7 ^1 s0 g: F! }>
0 c5 m# h U& N# V; h$ r > At this time, we are interested in samples of a pair of modems that
* t3 g; |7 P. S3 g > might be similar to this proposed system. We do not expect that you
0 P0 T3 z. {# @3 r! S% ?) V" \> provide all of these specifications at this time. I can describe our
2 z% r6 t+ `. [2 g+ _> immediate application needs in the next email if this project is of
" Q$ m6 I4 E0 N/ d9 y> interest to you. Perhaps you can make the samples by those
4 x- p7 g* k: L( q% E' N > specifications. This will allow us to test your radios before we move
9 h' j6 Q6 n( n" ]5 e* T > forward. We are interested in your 900MHz radio to start.
7 u. ^! X0 }( |7 b5 s5 ^3 r
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