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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

7 o" r- G* g: W% v 客户要求如下,如果哪家工厂可以做,请和我联系
$ D. e2 e! Y( o2 Z j5 v, W) k0 U > The application that we have in mind is similar to others that we commonly
$ K2 f/ N+ u9 o> have. If we were to pay for FCC approval, we would want to use the modem
0 E5 |% m) n- q0 s > units in all similar applications under the same approval number.
' z4 n/ b+ _0 @) e, p' K > Therefore, we would like to be able to configure the units to a specific
) T$ L& v4 p# o" L9 R6 A" J > application. For the business that we do, this approach will yield more
9 P) p* a( C/ C% q4 T, ~> sales based on the same product and approval. We are interested in the
2 F: O. v) f2 ~9 A5 E/ O9 u> following specifications:
6 U9 E# F* J9 O8 C >
! j& ?& A: r1 [. ] > - 2 inputs at the Transmitter with three possibilities;
' { o% E/ z7 L2 E5 E> 2 analog
" V; Q+ d" i1 {! ~5 ]% D > 2 digital
$ i, S1 O& Q+ L. K- B> 1 analog and 1 digital
$ f* Y9 P$ L' P8 Q Z>
( p& a3 y( }8 | n! w > - 2 outputs at the Receiver with three possibilities to match inputs
, R3 w# m! A: i3 ?) L% [0 T% L( \ >
p* _1 r2 X7 ]& Z1 v> - Ability to configure/define analog Transmitter input ranges through
, h: R3 E) B) [ > simple programming method to correspond with full-range analog Receiver
, |' h4 v8 I. S% \! o3 t> outputs (0 - full voltage).
4 H) W. M8 s8 p- u; p5 m >
+ H) k. ]; r7 `+ G. B, I> - Ability to configure and set sample rates for the inputs.
7 E( i, c" }# e. V, }8 L >
) ^5 e* u M% Q6 ?% y% k' B> - Digital output on Transmitter that turns on during the sampling period.
& x3 t- [$ n- e: w >
" v( e- Y2 U7 k) m$ j( k2 n! E > - Ability to configure a power saving Sleep Mode in the Transmitter by
# Q+ u# I0 ~ z- x2 O6 a> both software control and input hardware control.
: K4 }( o4 s. z8 t: f>
% m" U3 W( H! O/ @ > In order to configure the units, we would need a way to make the
" t8 W3 i: G' n# a& z! r; p$ L5 q > settings. This would preferably be from a computer terminal so that
3 L: P2 j T9 d6 \/ U+ l > configurations can be saved or easily duplicated for production volumes.
+ O0 s' E d+ n> The units should be small and compact with shielding, and able to mount
$ T1 q( R$ \9 T# J" J( ? > to a printed circuit board with header connector.
2 D! y' i) y. ^+ Q8 |6 B& E >
5 N/ Z5 H3 |: B& ], i> At this time, we are interested in samples of a pair of modems that
4 o+ R% V6 H2 A> might be similar to this proposed system. We do not expect that you
# Y; w' Q% l' \2 N' k% a& a1 K > provide all of these specifications at this time. I can describe our
8 |1 w _- i+ c > immediate application needs in the next email if this project is of
9 l- U! W( u1 ] > interest to you. Perhaps you can make the samples by those
9 x. l( M8 e. w > specifications. This will allow us to test your radios before we move
0 E7 K: q) M, x* B) Z > forward. We are interested in your 900MHz radio to start.
; m" Z8 k" B# p8 A8 J
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