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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

+ ]6 G0 c, K- O客户要求如下,如果哪家工厂可以做,请和我联系
/ L; }1 Z4 D2 S+ |; w" \. f > The application that we have in mind is similar to others that we commonly
, v5 U7 C# {; }: x" P. W; l* J> have. If we were to pay for FCC approval, we would want to use the modem
" g, Z* d/ _5 a* A \: V > units in all similar applications under the same approval number.
: Y- G6 e+ L7 E* [: m u) L> Therefore, we would like to be able to configure the units to a specific
& t: n- s+ m+ N, F; o9 Z9 S> application. For the business that we do, this approach will yield more
2 ^# R, q( b8 ]; [! e> sales based on the same product and approval. We are interested in the
# W. \8 D7 ]# f6 z4 t> following specifications:
+ b$ x. h Y) ]% d! ~3 H* D>
! |% R' O( I1 L2 P4 N7 A* d8 o> - 2 inputs at the Transmitter with three possibilities;
5 w/ U2 }! F# z9 k$ F4 C4 n > 2 analog
" i/ l4 y$ b- d> 2 digital
, e" `' C1 o3 O> 1 analog and 1 digital
- }0 o/ t3 P6 S C>
) _: _% S: ]% F: H> - 2 outputs at the Receiver with three possibilities to match inputs
' @. S f( Y" X>
b' T) W4 ^/ y0 V: F$ a > - Ability to configure/define analog Transmitter input ranges through
8 B" ]8 Y3 p0 L' N9 s > simple programming method to correspond with full-range analog Receiver
+ e' l' U1 f' ]& ^* F4 C> outputs (0 - full voltage).
) Y5 u2 ^6 ~& ~* j+ W >
4 d! a/ e+ |; ]7 S# S > - Ability to configure and set sample rates for the inputs.
% Y3 I, ?7 x, ^3 { >
2 F+ `/ N7 \8 ^> - Digital output on Transmitter that turns on during the sampling period.
+ z1 v. a7 G5 q>
( y9 U+ v7 i$ [ > - Ability to configure a power saving Sleep Mode in the Transmitter by
2 U& I5 K( n4 `> both software control and input hardware control.
) @7 `& D( N+ j5 n >
4 M- `, s% q$ L/ Z2 U5 \4 h > In order to configure the units, we would need a way to make the
% H. Q: p# I T0 |1 d, C3 `( P> settings. This would preferably be from a computer terminal so that
/ x6 @ Q1 a3 e3 f$ z' | > configurations can be saved or easily duplicated for production volumes.
5 W, p" q$ v3 {3 M. P9 Y) o> The units should be small and compact with shielding, and able to mount
) Y6 M7 U7 a* a. T2 P, G > to a printed circuit board with header connector.
/ [# q7 \0 g4 U* X6 p5 ^2 L >
' I% A/ F. K8 v > At this time, we are interested in samples of a pair of modems that
1 g: t, x( s7 q2 s; U _ > might be similar to this proposed system. We do not expect that you
6 D2 S1 \, B9 @3 J; R. |' U! T3 y4 [; s > provide all of these specifications at this time. I can describe our
; A* K. b3 Z+ J7 @9 K> immediate application needs in the next email if this project is of
1 a6 m# b- K9 `2 G8 K* D6 N- O! u > interest to you. Perhaps you can make the samples by those
2 h2 l$ a' A0 l9 w> specifications. This will allow us to test your radios before we move
+ q5 s# x6 g8 D# @> forward. We are interested in your 900MHz radio to start.
- l. Y4 r" b: ^: s4 o- Y
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