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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

$ y/ n2 u& b, f- b 客户要求如下,如果哪家工厂可以做,请和我联系
9 [4 |% n5 J" o > The application that we have in mind is similar to others that we commonly
6 z" t7 o2 W1 g4 a4 A/ C/ W> have. If we were to pay for FCC approval, we would want to use the modem
2 H- k$ O5 G4 J0 K ]+ e: d7 P > units in all similar applications under the same approval number.
X) i) b, W8 C" F. _ > Therefore, we would like to be able to configure the units to a specific
0 f" {. ?! d8 f1 T' {> application. For the business that we do, this approach will yield more
- w' o7 C, d- H6 o! T1 j > sales based on the same product and approval. We are interested in the
( X3 Q. A& `) t- G+ D4 I> following specifications:
6 G2 j7 }/ p" _- }2 m# ?>
. t+ F4 E- r+ ~! I$ F/ _4 V1 _> - 2 inputs at the Transmitter with three possibilities;
8 F# ]% B$ M! f1 [! r: g/ J> 2 analog
# p2 W, I/ N7 O$ k: F3 x> 2 digital
% r; w# ^# k4 K8 ` > 1 analog and 1 digital
+ F t, @3 B( ?0 z! g1 Q g >
' o% v! c$ ^' d6 a7 c* s4 R> - 2 outputs at the Receiver with three possibilities to match inputs
7 a' q( R7 f' |6 x% ?>
0 }9 n8 Q% a9 t" n u> - Ability to configure/define analog Transmitter input ranges through
, h& t) Z. s# W/ x! y/ ? > simple programming method to correspond with full-range analog Receiver
$ |; H4 d7 |3 X S* b! s8 L > outputs (0 - full voltage).
$ u3 G5 C' b2 }( R5 ]" ]% O% q >
; Z( f+ ^% Q N& N. F: i > - Ability to configure and set sample rates for the inputs.
( r0 Q; y0 k, f2 g>
6 |9 }8 L, Y' a* g( J > - Digital output on Transmitter that turns on during the sampling period.
9 X4 Z5 \: v2 L% Y' b* ~: p% b) _>
) F9 m8 w q% t4 s) T- w2 _$ ]> - Ability to configure a power saving Sleep Mode in the Transmitter by
% i" Y2 @$ |8 _) Z> both software control and input hardware control.
' m# k; ?1 r: \, T& s >
* W% L- o0 _( ~' }/ A) H > In order to configure the units, we would need a way to make the
. e8 v+ h. {- x' o > settings. This would preferably be from a computer terminal so that
* v4 O* A8 ^0 b8 W# u> configurations can be saved or easily duplicated for production volumes.
* |( q: e# L" D& V m > The units should be small and compact with shielding, and able to mount
( t0 q3 h+ k" U' m7 @. ? > to a printed circuit board with header connector.
+ B8 ~3 V( ]% I >
" x7 K; s/ _: O7 V+ [5 N W$ T> At this time, we are interested in samples of a pair of modems that
8 q7 D3 }$ U5 j+ g) d( J: R0 ?/ t> might be similar to this proposed system. We do not expect that you
) w4 v7 L* y4 l$ U' m: B% [# T( Q> provide all of these specifications at this time. I can describe our
. P0 l0 S* T( K% ^" k: c> immediate application needs in the next email if this project is of
1 @; o8 ^9 `& _3 i/ o> interest to you. Perhaps you can make the samples by those
/ ^2 l9 L$ y* B4 b! B > specifications. This will allow us to test your radios before we move
' I$ X8 i- W( m6 v4 l( `2 _" t > forward. We are interested in your 900MHz radio to start.
4 X- y: B) g; q; G+ b
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