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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

+ h, e# Z; @$ v5 ?. X' u8 G/ d) c 客户要求如下,如果哪家工厂可以做,请和我联系
. M3 [% F2 |3 J8 F: N: V> The application that we have in mind is similar to others that we commonly
5 R1 m6 M7 \" G9 D> have. If we were to pay for FCC approval, we would want to use the modem
" y1 ^& X8 S+ p. J > units in all similar applications under the same approval number.
) v1 D* l2 u% ~; ]5 a> Therefore, we would like to be able to configure the units to a specific
Q! u! ~/ p- U p ? > application. For the business that we do, this approach will yield more
' u2 B8 x& S3 [9 t' }& [& }8 m > sales based on the same product and approval. We are interested in the
* E: c: d: T. q& q> following specifications:
1 i2 q' U0 K' Y7 k0 f9 c( d>
7 {; c, F- h6 A4 D1 ` > - 2 inputs at the Transmitter with three possibilities;
! P! [' ~7 P6 p6 F> 2 analog
! v3 ~5 N- V$ d5 N > 2 digital
6 U: O6 ~( Z( c U1 y> 1 analog and 1 digital
7 |& d: o! E) v3 w9 F>
; Y( l, {3 \( g2 R0 E U. j4 r; d> - 2 outputs at the Receiver with three possibilities to match inputs
" {( v6 w" m4 J7 n. b >
9 D) O3 s6 Y4 v9 l- C: V1 R* L > - Ability to configure/define analog Transmitter input ranges through
: I5 O- ]: }9 @' Y2 y7 t, h> simple programming method to correspond with full-range analog Receiver
$ x( f( ?- L1 ^$ t" X+ \$ h> outputs (0 - full voltage).
2 ?( U; W3 i' N >
0 _( F0 n, L9 Q3 X% \$ k5 ?! R4 D> - Ability to configure and set sample rates for the inputs.
% n) z" P5 d, g) @% Z >
/ [+ S# Y3 T% b- r+ T# r> - Digital output on Transmitter that turns on during the sampling period.
1 v" G+ |$ F/ e" N& n >
' A" I+ A! Q9 S) D; J. k > - Ability to configure a power saving Sleep Mode in the Transmitter by
' P# E6 E3 d, B; E* ]6 J> both software control and input hardware control.
1 G% _$ I8 r1 T8 [2 l5 ~: g>
# F, Y1 f7 Z+ d* [3 ?* k1 Y- h2 R > In order to configure the units, we would need a way to make the
1 |" x, W/ h+ I6 a( a> settings. This would preferably be from a computer terminal so that
0 Q& F5 z0 q( ]0 K* W4 h: w" j > configurations can be saved or easily duplicated for production volumes.
) ]5 n {* Q0 x, d > The units should be small and compact with shielding, and able to mount
r8 H* t$ g1 R1 ^" k/ M. d > to a printed circuit board with header connector.
5 }) a5 R, v% N: O6 a3 s >
# `* j: v7 k& e2 u; Z4 `* z5 o$ c> At this time, we are interested in samples of a pair of modems that
( o6 x+ C5 ^" A* d- c, {8 ]> might be similar to this proposed system. We do not expect that you
* r# z+ J( j- M$ ~# n& d, f! @/ } > provide all of these specifications at this time. I can describe our
: \! d S, J0 i > immediate application needs in the next email if this project is of
# E% @" O5 H2 ^/ l8 d& [* D9 _5 H > interest to you. Perhaps you can make the samples by those
$ o9 H9 X; }. W, n > specifications. This will allow us to test your radios before we move
7 C; Y8 F* H& G, ~) W > forward. We are interested in your 900MHz radio to start.
8 G5 M5 A" q7 }+ u/ h
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