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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

% ]: a& V( j& M; F B3 ?; ]# j$ ]3 I( t客户要求如下,如果哪家工厂可以做,请和我联系
5 L2 s: @4 ]3 i% T> The application that we have in mind is similar to others that we commonly
$ ?0 ?6 X2 Q B% T > have. If we were to pay for FCC approval, we would want to use the modem
& L, X5 j; J! i> units in all similar applications under the same approval number.
; P4 F6 V+ B. ?( }- D> Therefore, we would like to be able to configure the units to a specific
- u5 y5 `+ b" B/ n, W# G, A > application. For the business that we do, this approach will yield more
% T" y+ ?9 ]4 z2 \0 E! R, T > sales based on the same product and approval. We are interested in the
; k! w9 H( I; ]& L6 M; N' j> following specifications:
4 p1 N( K, }, W8 K" Y" l3 H1 y>
$ b+ @ b7 U" {; U# x1 H> - 2 inputs at the Transmitter with three possibilities;
6 f6 z; m- z3 x0 r> 2 analog
' F$ v5 `6 _& Z o6 s/ @> 2 digital
( O: V# S5 H( b0 l+ D, p6 u6 B> 1 analog and 1 digital
. H4 ^0 m: I: u" M% K% A c3 ~ P j>
8 ?/ D& C z& E2 w > - 2 outputs at the Receiver with three possibilities to match inputs
5 g9 e: G% z" Z>
9 P* w( z/ i) u6 T4 _# r> - Ability to configure/define analog Transmitter input ranges through
/ y9 g# r% B4 u' J > simple programming method to correspond with full-range analog Receiver
8 z4 p# y# L7 y1 Y V- g( o; a > outputs (0 - full voltage).
0 l7 ^& a$ D+ @. x& ] >
7 X' ^" Q* J7 T ^+ }# i( V> - Ability to configure and set sample rates for the inputs.
# M8 Z$ q: C5 V% {: o" B P" X>
: H9 ~4 L& h2 w" T7 \9 t> - Digital output on Transmitter that turns on during the sampling period.
) _) _. n0 S. l$ F' ~>
, F$ |5 ?, v [. d5 }7 z > - Ability to configure a power saving Sleep Mode in the Transmitter by
' X% {) u# `( c> both software control and input hardware control.
& w) f- }& h, o>
( W( n- H s( j- ^> In order to configure the units, we would need a way to make the
* q4 Q s) x# w6 r > settings. This would preferably be from a computer terminal so that
* f6 `! O5 k/ f8 H > configurations can be saved or easily duplicated for production volumes.
/ `0 _5 q0 ]* D> The units should be small and compact with shielding, and able to mount
. _" ~* j: m# l> to a printed circuit board with header connector.
& r3 F9 L) {# l8 k) ?- f2 S- h >
' ], v9 w9 {) M! u > At this time, we are interested in samples of a pair of modems that
8 {' O& x- D4 e" ~6 S> might be similar to this proposed system. We do not expect that you
9 T- |+ f2 ^, I g) m9 ^ > provide all of these specifications at this time. I can describe our
8 `% Z4 o( k- q% g2 Y; [> immediate application needs in the next email if this project is of
& Y- I6 v# b' ~# B> interest to you. Perhaps you can make the samples by those
1 c% @) b f) ^" v3 U7 Z" q > specifications. This will allow us to test your radios before we move
}$ K* }7 V1 @> forward. We are interested in your 900MHz radio to start.
6 { L3 X/ [/ s. ?
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