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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

* q) S) w# [, Y" a( @: e: [& U) ~客户要求如下,如果哪家工厂可以做,请和我联系
+ ~" j0 M. c" g+ o( P3 Q* B> The application that we have in mind is similar to others that we commonly
1 _$ Q3 k/ f* Q- Z! O' D> have. If we were to pay for FCC approval, we would want to use the modem
! E# P5 E. a) A9 r$ Z > units in all similar applications under the same approval number.
6 a6 A0 _0 y0 i3 w > Therefore, we would like to be able to configure the units to a specific
5 f! \' ?5 M# Y, p% ~: T. q > application. For the business that we do, this approach will yield more
' h7 b1 ^1 V+ {3 |6 N y8 a> sales based on the same product and approval. We are interested in the
8 L5 A: H: N0 c- D% n s+ L> following specifications:
2 T+ ~' y* }1 R4 k/ j# y: X>
! W6 D, e/ _" ?1 \8 l> - 2 inputs at the Transmitter with three possibilities;
! D( ^! \( w* O0 e* E' f7 o > 2 analog
+ a: P0 y9 j5 Y1 {/ x> 2 digital
" }4 t6 B K5 K2 U > 1 analog and 1 digital
2 z# x8 S1 {* s, c1 @$ B5 z. v" ?- n6 X >
( {# [4 L7 M; ^> - 2 outputs at the Receiver with three possibilities to match inputs
8 Z% G) H! X- ^5 [* q >
0 ?$ D9 v, B. { o> - Ability to configure/define analog Transmitter input ranges through
; H7 c+ M7 u% k > simple programming method to correspond with full-range analog Receiver
9 ^. L3 l' P l+ ~! {) d > outputs (0 - full voltage).
; [! p2 O1 L, V& c+ L>
5 h5 P; ?/ M1 ?* [" ~' ^> - Ability to configure and set sample rates for the inputs.
, v/ q y! ?- ] >
, {: T2 y5 e, I0 v2 u# d > - Digital output on Transmitter that turns on during the sampling period.
5 s5 \2 W) w# ]3 u+ _/ R >
" M+ h/ v0 O/ R1 X1 r( x" s> - Ability to configure a power saving Sleep Mode in the Transmitter by
( L6 Y- V2 f/ j, b. P > both software control and input hardware control.
, {# q! u8 G5 |7 v >
: u8 E0 D# e/ f( Q> In order to configure the units, we would need a way to make the
& ~9 y$ O# z5 h7 F" G4 Q! j > settings. This would preferably be from a computer terminal so that
8 y6 Y& M4 C/ H/ j; r R- V > configurations can be saved or easily duplicated for production volumes.
. q+ S0 X% q5 b: O4 |. q > The units should be small and compact with shielding, and able to mount
7 Q) R- L# ^. ~" B( h6 S- h > to a printed circuit board with header connector.
* d3 [3 E$ q8 |" S4 \0 [' |! B8 Q >
# s8 `; c& y1 t& x# |$ N> At this time, we are interested in samples of a pair of modems that
& o$ c3 N _& l* c3 e) @ > might be similar to this proposed system. We do not expect that you
8 l& n0 M5 _; `. K1 ~ > provide all of these specifications at this time. I can describe our
8 }& ~- {" D$ G* b+ w( p> immediate application needs in the next email if this project is of
/ U/ c, G. \( n, s L/ q& X9 g3 u E$ R > interest to you. Perhaps you can make the samples by those
0 N' g* J/ {" A1 { > specifications. This will allow us to test your radios before we move
2 j/ r2 W3 \& d: U! \7 |- N. P> forward. We are interested in your 900MHz radio to start.
% h9 A) q4 ?$ r& o
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