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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

, J- N* a5 s2 O {. ^8 [- v 客户要求如下,如果哪家工厂可以做,请和我联系
0 |% ~5 L9 i- ]$ [" Y1 Q > The application that we have in mind is similar to others that we commonly
- J$ \ k5 V% X$ f& b > have. If we were to pay for FCC approval, we would want to use the modem
0 Q, B0 m% f, p; W1 z/ m/ F > units in all similar applications under the same approval number.
' n3 @. }% M8 t6 @/ E- ~ > Therefore, we would like to be able to configure the units to a specific
" i4 [& e, s( E5 Y/ ?> application. For the business that we do, this approach will yield more
; `6 y8 `; T; p* C4 T> sales based on the same product and approval. We are interested in the
# `" w! K( a) l+ x) {- \2 r > following specifications:
2 m- \: j( F- F# m) V2 ^, O& T3 B>
7 Z: C% r) K" g, y- A1 n. |# g2 ]> - 2 inputs at the Transmitter with three possibilities;
/ A0 t4 m' h( q# r > 2 analog
- L, G* P. h, @" S) B> 2 digital
1 D; ~8 @; p( {: R > 1 analog and 1 digital
% J2 k$ E* |. t4 U. [3 I4 {5 E>
& O. q L! X) ^8 u C2 S > - 2 outputs at the Receiver with three possibilities to match inputs
( [; d0 c9 {! o$ K* H+ q>
; X( Q7 d* u- [7 @+ D% e> - Ability to configure/define analog Transmitter input ranges through
* w" w) B4 P6 o) e( \/ ~' J+ ?8 Q> simple programming method to correspond with full-range analog Receiver
1 }( L' z/ y3 o1 _( T> outputs (0 - full voltage).
7 Y$ W2 ~, E: v; e! I' X% d: o >
" k3 I( D& g: l- `' K5 K > - Ability to configure and set sample rates for the inputs.
& @2 N% n1 a7 b3 _/ Z4 Q1 m4 r& H >
& K0 Q1 o- ?7 f/ a; L9 O! n4 `7 D) M > - Digital output on Transmitter that turns on during the sampling period.
' M$ `$ f2 f; I" v>
5 d6 ~' ?% V1 x3 X x3 G0 q) ]> - Ability to configure a power saving Sleep Mode in the Transmitter by
9 R: J& `7 l. V' [# C1 G+ h > both software control and input hardware control.
( {0 d# `3 ~* B1 _>
! ~, C. y& y: ?! ^& c4 m8 @ > In order to configure the units, we would need a way to make the
' Z" t" S: W- W/ N> settings. This would preferably be from a computer terminal so that
0 Y2 I7 z- V( \, r5 G% c6 U7 v > configurations can be saved or easily duplicated for production volumes.
, `8 t1 j" |/ h> The units should be small and compact with shielding, and able to mount
' \2 A% g: d) n > to a printed circuit board with header connector.
! A' {' {& n- \1 }# |1 A5 | >
$ a+ i4 N, Y' }$ y8 G5 W8 s% X > At this time, we are interested in samples of a pair of modems that
6 J1 h q, s7 O > might be similar to this proposed system. We do not expect that you
) c1 h4 ~: [3 k> provide all of these specifications at this time. I can describe our
6 A) C% {. g _: `- u> immediate application needs in the next email if this project is of
% q3 x( u' }6 Y$ ] > interest to you. Perhaps you can make the samples by those
6 o5 S; c* o; M/ G6 a> specifications. This will allow us to test your radios before we move
8 c2 d3 {& x* o& L9 o ]: h> forward. We are interested in your 900MHz radio to start.
( G3 R$ ^6 e# `6 C7 _' n" m( X" l
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