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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

& S6 O2 p& w* Z3 a6 u% ~客户要求如下,如果哪家工厂可以做,请和我联系
0 F* Z- R$ G- |1 v: R! \! d > The application that we have in mind is similar to others that we commonly
: K8 Y7 o) f9 \( v> have. If we were to pay for FCC approval, we would want to use the modem
4 V) w7 F. C7 ^! ]3 x2 L6 g > units in all similar applications under the same approval number.
7 f* a* ^! E" @2 I& b9 O > Therefore, we would like to be able to configure the units to a specific
7 D4 r& N( z/ ]% B2 I( t > application. For the business that we do, this approach will yield more
5 l6 R( x- M+ u. q> sales based on the same product and approval. We are interested in the
) _) E# W* ~- K9 ^7 m: }! R: a > following specifications:
: |: `* T {9 J2 p0 H >
& H' x H k0 r1 m: `- h; J( c7 }> - 2 inputs at the Transmitter with three possibilities;
7 I6 U# I: A" m# L8 ]# C* p, k > 2 analog
9 D0 q2 g) X# |' @1 k1 D' b" C/ D> 2 digital
% v6 }3 X% B6 M1 |1 m- Y > 1 analog and 1 digital
: M& C/ J6 n2 k7 o4 V& C>
; L! t" w3 J$ ~0 M' H7 F# m > - 2 outputs at the Receiver with three possibilities to match inputs
1 J/ T0 l0 G( q: ~) Q: S >
/ [8 d, k& _9 e' `4 n! O& ~+ p > - Ability to configure/define analog Transmitter input ranges through
& M% U$ N+ D- R& w' F/ \> simple programming method to correspond with full-range analog Receiver
" C3 f1 _2 b( E& a0 c> outputs (0 - full voltage).
$ |/ x1 N5 E) ?8 e' o f( V >
' ~+ J8 `8 _5 A > - Ability to configure and set sample rates for the inputs.
( {( ^) B) m+ ]! u; a) ] >
# `9 I# x9 y4 ?. x0 G> - Digital output on Transmitter that turns on during the sampling period.
" }2 s! m' L4 M7 x>
4 f( E8 w% d3 ], M: t/ ~4 E > - Ability to configure a power saving Sleep Mode in the Transmitter by
9 c! J! H6 U, Y1 q8 j9 @$ `> both software control and input hardware control.
d. ^* n0 q) k3 z! ^) w >
" a' J2 g1 O2 K: t U> In order to configure the units, we would need a way to make the
( b& y9 L" t9 v% H, x! P& F> settings. This would preferably be from a computer terminal so that
. W5 }9 |( d. a& Z3 w > configurations can be saved or easily duplicated for production volumes.
: Z! Q/ O+ ]3 {( v+ n> The units should be small and compact with shielding, and able to mount
6 `) b* g' ]* W) j> to a printed circuit board with header connector.
. I. s8 n) x4 V1 t8 \) E9 M >
. r# n& }% |+ Y( P) u> At this time, we are interested in samples of a pair of modems that
0 D: Q6 X$ Y4 S* @( x) [$ E/ N* [> might be similar to this proposed system. We do not expect that you
7 Z1 I. Y" {' l* W> provide all of these specifications at this time. I can describe our
! W J6 C A4 o; y1 ^! w7 s> immediate application needs in the next email if this project is of
$ _8 N/ s. X8 c$ o, o > interest to you. Perhaps you can make the samples by those
6 u$ }5 [) w, K7 m6 D9 b> specifications. This will allow us to test your radios before we move
# d, ~+ ~! V# S5 G( I; \) a3 f; n> forward. We are interested in your 900MHz radio to start.
+ _- P9 H ]+ k# ~% y4 N: j
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