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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

# h. y& M k; u( f 客户要求如下,如果哪家工厂可以做,请和我联系
) B) }- R6 n# A5 n# k0 ^ > The application that we have in mind is similar to others that we commonly
6 T% l3 v4 z/ x! l7 C6 K> have. If we were to pay for FCC approval, we would want to use the modem
# t. U8 [% ^' c7 r> units in all similar applications under the same approval number.
6 o* ~6 v7 h( E > Therefore, we would like to be able to configure the units to a specific
) i! S7 Y; p! N5 B) ]> application. For the business that we do, this approach will yield more
* z9 G9 N: ~% R6 Z, `) C> sales based on the same product and approval. We are interested in the
. A2 b# C7 y6 K8 t > following specifications:
H% {: Y% ~' i. o& w4 P1 B >
Q" d4 j$ k/ o8 _2 z" K > - 2 inputs at the Transmitter with three possibilities;
* @! N% I: }; Q( ^) s > 2 analog
. E8 H/ b' u: M/ h> 2 digital
_, x+ L* v9 V0 f. K* l) n6 ^ > 1 analog and 1 digital
/ b1 M4 ^3 A+ O3 p>
7 g# f# g# L$ m* C: {$ a* U > - 2 outputs at the Receiver with three possibilities to match inputs
1 R5 o$ `; L7 g; g2 ? >
4 A7 g/ ~' D" s8 x0 ]- n7 y> - Ability to configure/define analog Transmitter input ranges through
% w+ E$ _: J6 s0 [0 D* g > simple programming method to correspond with full-range analog Receiver
( r. y7 n- k+ J/ x > outputs (0 - full voltage).
, R/ R, t8 e6 u6 K5 w: C>
( P6 H; m4 ]" ` > - Ability to configure and set sample rates for the inputs.
* i" O$ }2 U2 r$ w>
9 ]8 @( u- S- ?7 i ^ > - Digital output on Transmitter that turns on during the sampling period.
r( c* f/ T; {- b* C>
* u5 `; [: q4 L; ^* n2 s" f > - Ability to configure a power saving Sleep Mode in the Transmitter by
2 h" w7 l5 _5 n" l6 r% y3 W > both software control and input hardware control.
6 T& p' M/ B3 t! u$ M9 W: j>
& o, F) E: V. p _. w% k3 W/ y > In order to configure the units, we would need a way to make the
6 b. v0 w. l- j9 Z$ I9 C9 u0 v > settings. This would preferably be from a computer terminal so that
" a6 l7 ~' M' E/ f0 y > configurations can be saved or easily duplicated for production volumes.
# u( m; f9 \; B8 z8 c% F" k> The units should be small and compact with shielding, and able to mount
l2 e. q K$ p" h6 p9 @ > to a printed circuit board with header connector.
* y8 G: A+ N" V1 t5 I* P# z>
& b( }/ P9 L" P. w( _: }9 `* B4 j# ~ > At this time, we are interested in samples of a pair of modems that
" [( o4 C8 G+ K2 I1 ]( v- a > might be similar to this proposed system. We do not expect that you
) L$ R0 }+ |+ Z" x! I' R8 j> provide all of these specifications at this time. I can describe our
$ T9 T, @( s9 `& i> immediate application needs in the next email if this project is of
2 I4 y) o2 R5 v > interest to you. Perhaps you can make the samples by those
4 \! ~5 V7 e' x& V1 C > specifications. This will allow us to test your radios before we move
( A* `7 J; m1 r > forward. We are interested in your 900MHz radio to start.
; A/ F! D! |1 U3 h5 ~+ K, G
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