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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* C8 c( E& R! g/ R: @8 t4 ?客户要求如下,如果哪家工厂可以做,请和我联系
& l' d$ z! K; V > The application that we have in mind is similar to others that we commonly
- M1 L; @) I0 s+ I, r- O0 ~> have. If we were to pay for FCC approval, we would want to use the modem
" a. C: L. B5 L& v% \' `* \ > units in all similar applications under the same approval number.
2 _$ P& J: p- v* n# [> Therefore, we would like to be able to configure the units to a specific
6 \( m/ w- X* q- c7 l: N3 M > application. For the business that we do, this approach will yield more
* f) C; m6 n3 s5 D' i> sales based on the same product and approval. We are interested in the
3 U, \6 u! i2 y) V> following specifications:
# u( F R% r$ l >
" `2 ~9 r# A6 V > - 2 inputs at the Transmitter with three possibilities;
, x4 `8 S( W6 V, R' M7 v; L > 2 analog
4 d+ K2 g" ^' k) v1 g6 W: G > 2 digital
$ z _! ~# {, z M$ ? d, ^ M }7 c> 1 analog and 1 digital
3 Q7 C4 g$ m3 s1 D( g8 }3 K>
' g" }$ R# j- [) d2 y6 p6 x > - 2 outputs at the Receiver with three possibilities to match inputs
# ?# K. t3 B# d>
( j- a' Z3 y5 w > - Ability to configure/define analog Transmitter input ranges through
, ?* H2 f( ?1 i> simple programming method to correspond with full-range analog Receiver
3 M" Y; G) Y6 ]! R# d; }> outputs (0 - full voltage).
6 D! Q3 k. b8 p>
% a& s- r2 K7 m; ~; T* x& f> - Ability to configure and set sample rates for the inputs.
4 y( m0 u% c, {/ n>
; l% I2 h$ i7 |6 a' A> - Digital output on Transmitter that turns on during the sampling period.
], m% N# U1 M) T% q" @3 \>
- R* h5 o5 t. c) C > - Ability to configure a power saving Sleep Mode in the Transmitter by
- W2 G( g P. z4 x( _" n4 `* i& N> both software control and input hardware control.
( w" [/ b1 c# V: q- W! R( p) I>
7 y/ C6 T& N+ \$ O8 [7 I. R > In order to configure the units, we would need a way to make the
+ y5 F: J7 D# ?% S# H/ j0 F! L% f( R > settings. This would preferably be from a computer terminal so that
/ j9 _4 o. c4 W( u* ^' V( j> configurations can be saved or easily duplicated for production volumes.
0 h8 i& Y f Q7 w1 M# A. r7 z> The units should be small and compact with shielding, and able to mount
/ m8 G; ?4 m& w8 s > to a printed circuit board with header connector.
7 V0 B: ^" E i>
2 a0 j3 y( Z, f( k > At this time, we are interested in samples of a pair of modems that
" S+ B4 D! D) _- |( o> might be similar to this proposed system. We do not expect that you
& h! Q1 p7 j4 J g+ w > provide all of these specifications at this time. I can describe our
% l9 G& G- R3 N( Z > immediate application needs in the next email if this project is of
2 o! N0 x; \: e) U0 \6 R; K& R! `> interest to you. Perhaps you can make the samples by those
* u0 |+ J# \; U. s. F: ?9 Y G> specifications. This will allow us to test your radios before we move
( @: y2 |: l( u' D5 v> forward. We are interested in your 900MHz radio to start.
0 o1 E: |: m; J" i& g( F7 K: A4 }
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