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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

% w W4 i; v( G: r1 Z) R客户要求如下,如果哪家工厂可以做,请和我联系
& c( r! H) u6 f" ^2 M > The application that we have in mind is similar to others that we commonly
) }, y! h( ~( ?! G$ o8 e > have. If we were to pay for FCC approval, we would want to use the modem
% F. ^( b; b& `5 X" ]7 T8 K2 ~ L3 ?> units in all similar applications under the same approval number.
. F+ `6 }% D' f- {8 b7 A0 s > Therefore, we would like to be able to configure the units to a specific
1 |' [) P; \1 n4 ~; |> application. For the business that we do, this approach will yield more
0 V* R* F5 ]6 \7 v > sales based on the same product and approval. We are interested in the
3 F2 Z( i4 ^# a8 }3 E> following specifications:
5 n, a8 w5 M: B5 O" U) x; }- d>
% z; B: x/ f7 d" s" Z0 \' Z/ u > - 2 inputs at the Transmitter with three possibilities;
0 ^, Z# p4 F4 P1 m/ I1 X: _ > 2 analog
5 A! m. C: Q1 e1 O% w: _0 G> 2 digital
" Z: E/ c5 C) r4 Y# a> 1 analog and 1 digital
5 p1 D! \/ H p" N3 J>
- I6 t* x U, J Y( q1 P# p6 \> - 2 outputs at the Receiver with three possibilities to match inputs
4 b5 _% {, l8 Y. q7 [! ^- s >
* K; z8 c$ R# Q% q3 i5 v > - Ability to configure/define analog Transmitter input ranges through
# B, c( m. @. E( j: y* A > simple programming method to correspond with full-range analog Receiver
: k* d) ~* _+ y# M- j > outputs (0 - full voltage).
6 E) p# L1 T: L* {% r2 o>
; E }- z$ ?# q6 u> - Ability to configure and set sample rates for the inputs.
9 x! m- O' D- p# } >
8 z: x; q, _7 g* @0 U > - Digital output on Transmitter that turns on during the sampling period.
: d% ^& Q4 B( G1 U# @% v! f>
" U9 ^5 }8 J& a0 M6 Q > - Ability to configure a power saving Sleep Mode in the Transmitter by
' \/ G' b4 d4 W9 Q; a7 } > both software control and input hardware control.
( }% `+ A1 x, i7 H" `/ X>
9 ?: d# Q8 F/ n2 b& C+ ?" }3 r > In order to configure the units, we would need a way to make the
( p" V" ^7 g$ g2 I > settings. This would preferably be from a computer terminal so that
q. g2 {# `% j* V" h > configurations can be saved or easily duplicated for production volumes.
q* P; r' l) h) g1 A; I1 B1 I- n> The units should be small and compact with shielding, and able to mount
' W7 W2 o/ z2 Y( t% u> to a printed circuit board with header connector.
& f) ?! K+ C o: a5 A9 X- ]( |6 |' P>
* x" ?2 y" v. d: d5 D" u > At this time, we are interested in samples of a pair of modems that
& S6 Z1 K s, q% |& M- J: }% x > might be similar to this proposed system. We do not expect that you
: Y0 ^. W6 _# L8 f7 ]$ y> provide all of these specifications at this time. I can describe our
. Q. N1 f" k. M, Y. \' l: K# k > immediate application needs in the next email if this project is of
0 V5 v1 O* A+ @+ D > interest to you. Perhaps you can make the samples by those
3 A r# [! O- L" m> specifications. This will allow us to test your radios before we move
0 q1 `- h3 k( h# `+ H6 f> forward. We are interested in your 900MHz radio to start.
0 r# q+ S( f! E$ ]3 i7 {
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