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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

- s6 n2 ` G( y( h; u9 W5 |) r 客户要求如下,如果哪家工厂可以做,请和我联系
, S) D" q) z% q" v+ g9 G: [' @* _> The application that we have in mind is similar to others that we commonly
2 C. U* _1 P: }( O > have. If we were to pay for FCC approval, we would want to use the modem
7 b) F6 K5 E! M O" }8 o# ]& K > units in all similar applications under the same approval number.
, G: r6 p; I& S% W+ X! O1 | > Therefore, we would like to be able to configure the units to a specific
8 @* f9 c2 s$ H% [) m > application. For the business that we do, this approach will yield more
/ e2 D8 y( w: \' O > sales based on the same product and approval. We are interested in the
/ s, r; D6 Y: N> following specifications:
. @' Q, F2 t( x( U9 R >
6 ^8 T2 G5 q( o/ g. C$ T2 M) I: t > - 2 inputs at the Transmitter with three possibilities;
( t' C2 W0 P6 X& i+ I3 o > 2 analog
) v4 p1 L) D9 M7 k > 2 digital
3 k0 B7 d+ A' T2 P) i) v> 1 analog and 1 digital
$ X8 {8 s5 `! Z8 Y% b+ d. l >
) o/ p2 G) ?$ I' B+ ?8 I S > - 2 outputs at the Receiver with three possibilities to match inputs
( o( r' G) m1 ]( B @ >
9 Q- L/ Z- a, H6 ?> - Ability to configure/define analog Transmitter input ranges through
9 \3 J) S6 j2 h7 G> simple programming method to correspond with full-range analog Receiver
9 s; Q. ?" Z/ F" J > outputs (0 - full voltage).
+ z6 B: c6 b; z) z/ ? >
3 A1 u. W! x- C& h5 a0 T( q > - Ability to configure and set sample rates for the inputs.
1 i" U$ ^( o6 x >
) y9 P' K4 e' C: A V; y5 S > - Digital output on Transmitter that turns on during the sampling period.
2 C* V6 D5 | p) H>
9 H2 L# K/ M9 |" q5 \4 y > - Ability to configure a power saving Sleep Mode in the Transmitter by
- I3 w6 f- @! g, K& { > both software control and input hardware control.
Y- c) D( Z. F* w U >
% R$ r+ B# ]7 A8 r2 ^0 T( m7 c: a$ C$ z > In order to configure the units, we would need a way to make the
- H1 y7 f. ?' X- W > settings. This would preferably be from a computer terminal so that
T, ?3 R% l2 P: c8 `# e% U > configurations can be saved or easily duplicated for production volumes.
# n+ F1 z, o; b# M4 ~1 t% k4 k > The units should be small and compact with shielding, and able to mount
/ l& }: g9 g* p4 h/ z5 V > to a printed circuit board with header connector.
! h, `, n% l! ^>
" L8 [$ |( x. n- G4 {+ {, ^9 Q& k. B6 u> At this time, we are interested in samples of a pair of modems that
, i- z1 p9 m) S0 g( {$ i2 {. W0 a; x& g > might be similar to this proposed system. We do not expect that you
9 i* x2 D+ ^) m2 d> provide all of these specifications at this time. I can describe our
2 S4 Z$ ~, P- |; K# U! g) Y. X> immediate application needs in the next email if this project is of
! `7 {" ~0 {5 B. z( j> interest to you. Perhaps you can make the samples by those
, n5 w8 `+ M$ p; d5 |% V9 [0 R6 H > specifications. This will allow us to test your radios before we move
. j2 E; q" j4 w- H > forward. We are interested in your 900MHz radio to start.
3 Z" ?9 F/ w, u9 c: @+ D& F+ k
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