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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

3 |# Q: N! w& q" O7 _" O( f 客户要求如下,如果哪家工厂可以做,请和我联系
! L' q( _4 @* J& n2 @- H7 K h. w x> The application that we have in mind is similar to others that we commonly
- R6 d. b, v# _% o, i > have. If we were to pay for FCC approval, we would want to use the modem
9 g# O, |- ]6 f$ \% Z! ]> units in all similar applications under the same approval number.
U3 W* n5 g0 ~( y> Therefore, we would like to be able to configure the units to a specific
0 k) {8 ]+ A( ]> application. For the business that we do, this approach will yield more
9 Y; y6 p: P. H5 J( k> sales based on the same product and approval. We are interested in the
7 \5 l! g e. y/ M3 C& D > following specifications:
% {4 R7 b @- E; o- _% M >
# P- c9 C# V! d+ I6 m> - 2 inputs at the Transmitter with three possibilities;
/ N# O. {) K b, S > 2 analog
3 |0 m, Z& p: O0 S. V> 2 digital
% O5 O9 [( ~# x- z3 M> 1 analog and 1 digital
( l, @; R) y8 v4 v+ D7 Z) N5 h>
# ]8 | o! `5 R, Y/ ?1 d) N5 [! M> - 2 outputs at the Receiver with three possibilities to match inputs
8 s7 P0 _' T+ H" w5 b >
% }# H9 O7 ?) u- f7 u/ x. @0 Z> - Ability to configure/define analog Transmitter input ranges through
, }0 { f; q3 k: e; ` > simple programming method to correspond with full-range analog Receiver
- G4 u3 X; n; r( \6 F > outputs (0 - full voltage).
/ w/ Y( `6 v: Q. m$ o( j>
) L7 J. [8 x0 W8 C > - Ability to configure and set sample rates for the inputs.
1 \4 }7 E. @, j8 g- i9 e- K>
% Q4 m$ D3 l" Z1 T8 T> - Digital output on Transmitter that turns on during the sampling period.
3 F; o5 }& f( y$ `2 K >
2 ?. x: W0 ]! X! ] H2 _ K h' a> - Ability to configure a power saving Sleep Mode in the Transmitter by
# b- y$ q" g, m9 b+ W" @* _ > both software control and input hardware control.
+ b2 j1 s) _9 h>
7 r, V5 J% V+ a! R > In order to configure the units, we would need a way to make the
/ n+ Y W3 m C( Q- K > settings. This would preferably be from a computer terminal so that
+ C: O" P5 x3 {0 O6 Q> configurations can be saved or easily duplicated for production volumes.
9 ]2 c+ r, ?3 Q% e5 o+ m/ ~ > The units should be small and compact with shielding, and able to mount
! e6 n4 n( \ p, f; B f > to a printed circuit board with header connector.
( a5 E% N3 m2 W" G& {* z>
9 K$ m0 y! m' s9 W > At this time, we are interested in samples of a pair of modems that
' ^2 g5 e7 x+ W7 m6 `' | > might be similar to this proposed system. We do not expect that you
# ?* p9 a. R# [& L- o, h n: p> provide all of these specifications at this time. I can describe our
# J, j1 _5 k5 B& | > immediate application needs in the next email if this project is of
5 w% g. C# o2 ^: [/ D/ V > interest to you. Perhaps you can make the samples by those
6 |/ D) j+ P2 j' Z5 Y" c > specifications. This will allow us to test your radios before we move
" u" ~0 U8 s1 ?6 _( ?% X; a > forward. We are interested in your 900MHz radio to start.
, l' {# ^8 h7 M1 t8 J
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