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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 L W c% Y. L5 F" J0 h3 G1 _客户要求如下,如果哪家工厂可以做,请和我联系
0 m! V; Z! l( G3 Q& S( @" |> The application that we have in mind is similar to others that we commonly
! e* b% G. p% M# b> have. If we were to pay for FCC approval, we would want to use the modem
/ h6 @& j% P9 d3 r$ [0 l* j > units in all similar applications under the same approval number.
; J- e5 {1 u' `6 j5 M; _/ M> Therefore, we would like to be able to configure the units to a specific
& Y6 A2 T& ]" d0 F# ]9 c4 O> application. For the business that we do, this approach will yield more
' B* s- L8 E& }8 m& ]* @> sales based on the same product and approval. We are interested in the
' a; I: q, R0 `. T > following specifications:
U* m8 g$ B1 t( g0 y+ q! e>
$ I& e$ C0 F0 P, d% U> - 2 inputs at the Transmitter with three possibilities;
7 @8 e2 G( q2 X) F5 b > 2 analog
5 T4 C) ?( t5 C) Y6 c% @> 2 digital
) l+ s1 X8 p0 w" K& e > 1 analog and 1 digital
4 u+ p% X2 C. K% I >
7 @) Q& p5 S% `9 {4 j1 y6 x4 v: q> - 2 outputs at the Receiver with three possibilities to match inputs
9 R2 n5 G6 S% s. I( D. E( d >
% M8 ?: h' W6 \) r4 b, ?' m > - Ability to configure/define analog Transmitter input ranges through
1 E& l" m+ b1 {> simple programming method to correspond with full-range analog Receiver
U4 g$ u8 p: ]5 V+ z4 X> outputs (0 - full voltage).
4 Y- `, f8 Q' Y/ o% F. c; |$ Y% S: C >
. S2 }1 y; o% G. w* f" f# S/ C- L> - Ability to configure and set sample rates for the inputs.
0 A1 L% }7 M. V2 ^* f/ P4 c( S6 g>
3 W( I& {" Q& E7 u0 z/ R > - Digital output on Transmitter that turns on during the sampling period.
# Q+ ? q/ B( F >
# {4 K8 h0 n u" Q8 [/ u > - Ability to configure a power saving Sleep Mode in the Transmitter by
" T" s4 {$ b3 D) h- m- B8 r. w% m > both software control and input hardware control.
" Z' L' x+ O( Q >
0 V" D( C) r8 ?2 N4 B > In order to configure the units, we would need a way to make the
+ f }8 g- S4 ^( L$ t > settings. This would preferably be from a computer terminal so that
( p- u( a. A* m' ]% x# W> configurations can be saved or easily duplicated for production volumes.
. G+ y. j) y% }; \8 d> The units should be small and compact with shielding, and able to mount
1 T+ l5 _+ c8 j8 j) x2 F > to a printed circuit board with header connector.
4 K9 H9 T3 w! X' S, _% ^$ f >
1 \# T m% {' n4 {1 A5 S% S> At this time, we are interested in samples of a pair of modems that
( t1 ]+ x$ V& [! y0 v > might be similar to this proposed system. We do not expect that you
8 X+ H5 I5 ^; T+ G> provide all of these specifications at this time. I can describe our
; U0 p# c% N6 z' Q, D" }- Y > immediate application needs in the next email if this project is of
3 M% {4 N; u+ a$ H! J0 A9 F! F> interest to you. Perhaps you can make the samples by those
* W2 L" |0 {: L6 i( L > specifications. This will allow us to test your radios before we move
0 v! y: |/ @# {( o1 m9 p+ n > forward. We are interested in your 900MHz radio to start.
6 @) m+ H' H& J& f5 D+ ^4 O
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