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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

# N* o# x( _3 ~9 M8 A5 G# A( z客户要求如下,如果哪家工厂可以做,请和我联系
6 t; g# h4 G5 q" H> The application that we have in mind is similar to others that we commonly
1 q' }8 o: ~2 {& E% h> have. If we were to pay for FCC approval, we would want to use the modem
3 G5 I+ a5 k- q8 p; T# a> units in all similar applications under the same approval number.
, Q8 e4 T6 Z, ]! H> Therefore, we would like to be able to configure the units to a specific
. Z/ ?& b6 B! {9 G# [9 Z* i5 r > application. For the business that we do, this approach will yield more
% Y! T E( q% V0 w* l > sales based on the same product and approval. We are interested in the
' w6 G1 S- e7 G% j+ N4 Q4 G > following specifications:
" v3 b! a4 X" H>
. e# D$ V' y' x; c+ ~0 r. y6 z0 l8 O > - 2 inputs at the Transmitter with three possibilities;
C( n$ N0 g7 m. ~2 }: M4 k> 2 analog
, h% K* B. x2 @6 [, T > 2 digital
M u) Q: w0 K! v3 Y9 h- C> 1 analog and 1 digital
3 l" G% l" a! C! j>
. J/ n' q6 [& j > - 2 outputs at the Receiver with three possibilities to match inputs
. ?" f$ u. L( } f" t6 P4 e; N >
/ F* T/ D4 r6 c; G, t2 ~ > - Ability to configure/define analog Transmitter input ranges through
/ I8 a$ y) j- ? > simple programming method to correspond with full-range analog Receiver
7 F6 X$ m( N/ `( I5 G- Y > outputs (0 - full voltage).
* x' y" l! i( A>
3 F2 Q6 ]* A7 W. X* K1 T) v > - Ability to configure and set sample rates for the inputs.
+ G7 F" b, F1 w* J' D& F l >
+ u5 z6 P7 c' R& f5 v4 F> - Digital output on Transmitter that turns on during the sampling period.
% R* j7 w) Z. F6 A4 v5 T+ C4 E# c >
0 B* h7 B! J+ S6 x( v5 I5 p> - Ability to configure a power saving Sleep Mode in the Transmitter by
2 C% S/ l: ^/ ?5 j! j> both software control and input hardware control.
) N& \; q/ `8 Z3 q! E- F >
$ W+ K3 g/ n" J > In order to configure the units, we would need a way to make the
: d0 g O/ k6 ~" t7 }1 I. ~ F! y > settings. This would preferably be from a computer terminal so that
' S# l5 w" l: @) [" d/ g> configurations can be saved or easily duplicated for production volumes.
/ X4 s) u. c/ q# A> The units should be small and compact with shielding, and able to mount
3 v) L9 M/ ?* R+ d1 J6 M> to a printed circuit board with header connector.
( @- t4 P$ S' p1 p& q8 z, \" ~4 y>
$ O. ?7 H( K# P8 D% B9 b > At this time, we are interested in samples of a pair of modems that
# \) P- l: L: N' Z > might be similar to this proposed system. We do not expect that you
: g {- ]# Z2 \2 O6 s > provide all of these specifications at this time. I can describe our
$ R2 h# D3 G/ J> immediate application needs in the next email if this project is of
( I, [, [& g4 Z. @: y2 H > interest to you. Perhaps you can make the samples by those
* L8 }; W& i) ]- U E# M: ^> specifications. This will allow us to test your radios before we move
. Z! P! c7 t' r# } > forward. We are interested in your 900MHz radio to start.
0 a7 }! e9 q% C( W$ R- b6 B# O X
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