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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

4 }( m# U$ q" v2 A# P M 客户要求如下,如果哪家工厂可以做,请和我联系
0 Q) m4 M7 p5 N! R1 z# T& ^> The application that we have in mind is similar to others that we commonly
/ w$ [1 P' t3 V# v > have. If we were to pay for FCC approval, we would want to use the modem
; B t7 L+ D9 d* N- U# P6 H. Y# R% _- J> units in all similar applications under the same approval number.
6 d& C- m7 A# p* i6 }7 R& z6 z! F > Therefore, we would like to be able to configure the units to a specific
1 X$ |3 J/ l4 @4 G> application. For the business that we do, this approach will yield more
) J; E2 n. \$ g > sales based on the same product and approval. We are interested in the
3 U- ^1 f4 P( Z& c$ ^9 \' C. k > following specifications:
4 V# a2 h8 u4 a8 }: B/ t9 z. r) I >
4 G: ?/ y7 B# ~' [9 @) n, N > - 2 inputs at the Transmitter with three possibilities;
/ k B+ d3 u* l) q> 2 analog
% K4 E" |' f, P> 2 digital
2 d. y& n& t3 j+ B/ E% @> 1 analog and 1 digital
8 I* g: n9 c, `+ S>
3 |6 ]: N! [" f m1 f4 P* J+ ^! H > - 2 outputs at the Receiver with three possibilities to match inputs
0 F4 J" n9 `% \+ M: P; j>
3 [4 _- Y3 G- ]> - Ability to configure/define analog Transmitter input ranges through
6 s0 S# U4 L i7 m$ g( r( d > simple programming method to correspond with full-range analog Receiver
( f1 G$ p6 h; j. h> outputs (0 - full voltage).
* |( B% {* A: i >
2 N D2 P! p( S5 X; O! ` > - Ability to configure and set sample rates for the inputs.
9 I2 J9 B( |7 x% k$ u7 \0 d# Q >
, q: q) U" ^$ y, v% y- N& ~> - Digital output on Transmitter that turns on during the sampling period.
; [) j7 N# G$ v1 e. F4 i) j >
r s3 H. |& J$ l5 P' b) R > - Ability to configure a power saving Sleep Mode in the Transmitter by
! o, `- S$ r. T6 m1 e( y& e, j > both software control and input hardware control.
, Z+ t$ K8 m! X _, Y( q0 F >
1 a3 r1 U/ z: F* b; i> In order to configure the units, we would need a way to make the
& a9 r, G2 Q0 O: M1 ^> settings. This would preferably be from a computer terminal so that
' D- g4 p) \# m> configurations can be saved or easily duplicated for production volumes.
$ z: f) P* h O. `$ O: D( B> The units should be small and compact with shielding, and able to mount
# `' D" X$ [) t# _+ |# g! O> to a printed circuit board with header connector.
* O8 ?. j% X6 J& c >
& [" w, a, h, v/ N> At this time, we are interested in samples of a pair of modems that
1 Z& d1 C4 @. H3 w6 O( j > might be similar to this proposed system. We do not expect that you
9 Z4 ` O7 ^6 k ^: t( y > provide all of these specifications at this time. I can describe our
5 Z8 ]7 b5 J2 ` > immediate application needs in the next email if this project is of
* U! |3 W* @7 k* {( `( A, Q4 M8 f0 O > interest to you. Perhaps you can make the samples by those
- ? V B2 ^& I> specifications. This will allow us to test your radios before we move
8 U, W2 w1 T1 G9 K> forward. We are interested in your 900MHz radio to start.
8 |6 `8 x( F! { F; N- P" \# Y
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