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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

' M" G! M6 y% s8 ?1 E客户要求如下,如果哪家工厂可以做,请和我联系
7 a& V! g9 V$ J! U" b" `7 l> The application that we have in mind is similar to others that we commonly
7 T8 u3 I2 ^* V4 _3 x > have. If we were to pay for FCC approval, we would want to use the modem
% C. q4 z. P2 O% F > units in all similar applications under the same approval number.
6 I% y& E4 C2 q6 f" @5 S, f* Q > Therefore, we would like to be able to configure the units to a specific
- @9 F+ h0 |! s1 u7 |2 F" }1 {2 m> application. For the business that we do, this approach will yield more
V, O: G! C$ R# M" Q! q > sales based on the same product and approval. We are interested in the
# e; w8 S; S* ]5 J& D" c > following specifications:
7 l, u$ m' s7 Z" ^* a >
, `: P; ]' @1 q0 b7 k: v> - 2 inputs at the Transmitter with three possibilities;
$ c2 k% |8 _0 T! v> 2 analog
4 H3 L" N# y* K9 n+ k, r> 2 digital
. A& q' n8 a1 a6 ?$ F> 1 analog and 1 digital
9 p3 o$ V9 t+ c3 V5 Q4 Z >
% L9 C8 M( [+ t. D > - 2 outputs at the Receiver with three possibilities to match inputs
7 |3 K! p; C& I: E8 }$ p! n>
5 V# }; P% ~ Y% H6 N# q ? > - Ability to configure/define analog Transmitter input ranges through
7 K7 p5 S" w1 E, t> simple programming method to correspond with full-range analog Receiver
4 v: j# J2 V& m, u5 T > outputs (0 - full voltage).
q" ]; _) P2 T4 d>
7 d' }/ l7 _0 N" }( D" ]> - Ability to configure and set sample rates for the inputs.
: G, C$ v- A& D# F5 p >
" k% F* I2 V8 q> - Digital output on Transmitter that turns on during the sampling period.
( N. f9 O* `! x7 w" c/ x >
( v- g9 K; m( y2 n> - Ability to configure a power saving Sleep Mode in the Transmitter by
9 ^+ E* n3 Q" e4 U5 S> both software control and input hardware control.
9 J5 E0 L- [+ u5 I A; ~ >
; g) P2 A% {: b8 U; i; U > In order to configure the units, we would need a way to make the
2 \) U' i2 F1 x% T1 I2 r& j0 [> settings. This would preferably be from a computer terminal so that
$ V" b9 a# o( d4 ^+ E0 R$ @> configurations can be saved or easily duplicated for production volumes.
. H, l; k& G9 K( _> The units should be small and compact with shielding, and able to mount
" w; i/ z/ c. X! A> to a printed circuit board with header connector.
0 C8 n7 Y! j3 E3 c>
- t8 \; _. N' C- W% ?9 X> At this time, we are interested in samples of a pair of modems that
' e" t; [' M D2 c" t$ c. T+ f> might be similar to this proposed system. We do not expect that you
! U$ }* S0 {& d, W7 @0 P: p > provide all of these specifications at this time. I can describe our
9 T, f R; S+ X3 b1 q9 m% a > immediate application needs in the next email if this project is of
, h! Q- @+ I+ u, Q) E4 H1 \> interest to you. Perhaps you can make the samples by those
1 V Q, n. \. I. E- a$ E- v& W > specifications. This will allow us to test your radios before we move
- C5 Z0 o/ X D, m( c/ j! M > forward. We are interested in your 900MHz radio to start.
1 d/ j2 c0 s, W( |8 z' A
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