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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

* s4 S) i9 }7 Y }客户要求如下,如果哪家工厂可以做,请和我联系
# `" f6 M- s* F4 O) Y0 V9 K > The application that we have in mind is similar to others that we commonly
' m9 V+ F$ c' F& o* X> have. If we were to pay for FCC approval, we would want to use the modem
2 Q3 T& K$ A6 b' Y3 O& e% M > units in all similar applications under the same approval number.
4 M$ c( }( J* l: `3 @> Therefore, we would like to be able to configure the units to a specific
& O9 d/ K% _2 H > application. For the business that we do, this approach will yield more
5 e9 Y& a. C4 |% G U> sales based on the same product and approval. We are interested in the
& r% S, J( y q+ T6 l> following specifications:
4 |5 t! ? Y5 e>
5 U( e' j$ @$ M- B9 _$ w8 k0 n > - 2 inputs at the Transmitter with three possibilities;
: Z. p1 W% `7 h2 K, o1 T > 2 analog
5 F0 X0 A) x( O2 L/ ]> 2 digital
, |1 j, C& n7 ]6 v- h: Z2 `9 S> 1 analog and 1 digital
3 L. X, a, j d" m) G% z7 @>
" Z% w8 q) w# m> - 2 outputs at the Receiver with three possibilities to match inputs
+ y F7 z: y; J% _ >
8 {. L3 {& Y/ V7 i4 Y: B1 h' M > - Ability to configure/define analog Transmitter input ranges through
+ B, W# [) \+ G > simple programming method to correspond with full-range analog Receiver
4 T% h0 ] K9 R/ K7 V3 k$ Y> outputs (0 - full voltage).
. `- H# b6 V& T, [: T8 a+ m>
$ k( t" [- n) M" B1 p> - Ability to configure and set sample rates for the inputs.
0 N7 q$ |: U* F' L>
1 L8 S2 z8 E; ~/ j8 e; j> - Digital output on Transmitter that turns on during the sampling period.
) h7 H% F4 [4 B+ {" h" @1 v# O>
2 ?2 [$ X; r' g8 }5 G# G> - Ability to configure a power saving Sleep Mode in the Transmitter by
# c7 G! x3 Q: b6 C. i" Z9 ]6 Q> both software control and input hardware control.
$ f' \0 b- I# f# R9 R0 Q >
. x8 J& ?5 q U+ Q% N> In order to configure the units, we would need a way to make the
/ x7 s k" w' R" ^ > settings. This would preferably be from a computer terminal so that
# {9 f! [# ^8 g. h5 m+ q# W' C: } > configurations can be saved or easily duplicated for production volumes.
* U) w2 S- `6 v7 |- M3 v > The units should be small and compact with shielding, and able to mount
# i) A, [# s: X$ M/ Z6 k > to a printed circuit board with header connector.
4 j2 c+ f( }# s- p >
, K& C! Z' h. `3 y Q> At this time, we are interested in samples of a pair of modems that
4 ]7 {' C8 v4 x! q7 L: W5 I$ r; n > might be similar to this proposed system. We do not expect that you
1 [4 t6 d, D+ T > provide all of these specifications at this time. I can describe our
& [9 T" S: A! K' ~ > immediate application needs in the next email if this project is of
% T6 [$ p) o7 E$ X1 q' a> interest to you. Perhaps you can make the samples by those
& x0 E* _4 X+ X+ p! d> specifications. This will allow us to test your radios before we move
X1 N5 y+ S$ S" U8 n ]> forward. We are interested in your 900MHz radio to start.
% |- G1 I$ I6 [9 L
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