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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 D8 V6 ~! l$ V) O2 m客户要求如下,如果哪家工厂可以做,请和我联系
7 e# P$ k4 V8 w> The application that we have in mind is similar to others that we commonly
/ V; D. |: j+ c > have. If we were to pay for FCC approval, we would want to use the modem
( S! V+ U5 x+ a* I& _& y > units in all similar applications under the same approval number.
* t- g4 K! i( O @. H8 U> Therefore, we would like to be able to configure the units to a specific
7 `# [9 E+ ^. B* V > application. For the business that we do, this approach will yield more
8 l6 N) S9 k8 n1 q1 d I: C > sales based on the same product and approval. We are interested in the
2 ^3 l9 }, Q4 h. ?( q7 l' k > following specifications:
7 z( Z; V8 K( a$ \; j8 z >
5 O( F+ i: a! j( n, L) W; I > - 2 inputs at the Transmitter with three possibilities;
" C, O4 I }1 {4 t- d, |. { > 2 analog
6 p0 x2 n6 p9 A- @, O" s> 2 digital
( E5 H5 T. u7 F p$ w > 1 analog and 1 digital
# u/ j" P. I( p! q; }) r" O >
" h1 a/ a0 f9 R# S) s> - 2 outputs at the Receiver with three possibilities to match inputs
% k" y( E# p. h1 k! U; ^3 ] >
4 q; p5 [2 k, {/ X > - Ability to configure/define analog Transmitter input ranges through
$ s1 _' O0 Q4 H8 b) S4 T > simple programming method to correspond with full-range analog Receiver
$ Z v# |( t: g, V% \6 u- F3 \6 \ > outputs (0 - full voltage).
# t* H+ {8 A6 m! a>
% k7 W$ D6 C7 R; J8 _/ y2 d > - Ability to configure and set sample rates for the inputs.
; Y5 ^' Z: B8 c- @5 o' B4 r+ m. m$ Z >
1 g8 Y7 s; x8 y> - Digital output on Transmitter that turns on during the sampling period.
% x! Q0 U/ g$ ~+ M5 |: p >
7 W' V3 ~9 r6 m# p$ L > - Ability to configure a power saving Sleep Mode in the Transmitter by
# D* s* h: l2 C2 K4 v6 o3 s3 d > both software control and input hardware control.
# ~5 N2 ]1 d, P* k >
0 t) u* d5 a$ R > In order to configure the units, we would need a way to make the
. l- z4 K4 Y y; q8 U > settings. This would preferably be from a computer terminal so that
* ^9 P6 Y4 t5 Z9 f |+ \ > configurations can be saved or easily duplicated for production volumes.
* y5 f9 h! ?$ Z9 f8 L4 H' ^ > The units should be small and compact with shielding, and able to mount
4 I) X, d7 t+ s# S' D% \, f> to a printed circuit board with header connector.
2 P/ C$ }% D- L" y>
/ ~$ C( o+ k! h% V# _/ f> At this time, we are interested in samples of a pair of modems that
+ t* I5 t. l. L% R > might be similar to this proposed system. We do not expect that you
m6 V6 y+ f* F, u: f> provide all of these specifications at this time. I can describe our
) O. m: A- p( H9 _0 [$ {) U G0 C5 j l > immediate application needs in the next email if this project is of
: e; k5 l& a7 f7 A8 L' q" w8 R> interest to you. Perhaps you can make the samples by those
' A* g9 j8 k( [% U" O+ S$ q8 G7 c> specifications. This will allow us to test your radios before we move
' u0 e5 ]1 L5 u2 i7 b7 @0 N8 T > forward. We are interested in your 900MHz radio to start.
, F* b6 ?4 m4 |- b, c
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