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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

/ v' H' g& K; l) E3 |) {客户要求如下,如果哪家工厂可以做,请和我联系
6 Z9 l& b9 I b) t> The application that we have in mind is similar to others that we commonly
! }7 I* c0 I9 Y. ^9 ^9 @& w( ^ > have. If we were to pay for FCC approval, we would want to use the modem
( e( j$ S+ ^9 x: J > units in all similar applications under the same approval number.
7 j1 }: |4 B0 c, Y > Therefore, we would like to be able to configure the units to a specific
1 `3 c1 [" F' {8 d > application. For the business that we do, this approach will yield more
( s3 O! k- U/ g0 y# r > sales based on the same product and approval. We are interested in the
6 }0 Y( q- y( r2 h9 r1 E/ n > following specifications:
$ \' e5 X) s9 x. V! b0 \; S >
0 y* }8 D( l- d% O( D > - 2 inputs at the Transmitter with three possibilities;
" c1 p4 k. S, T9 c1 C( k8 o > 2 analog
7 j5 s7 e: ^% S2 S8 c" L# R; {; z > 2 digital
% J1 a5 I( r) t6 C+ J9 ^> 1 analog and 1 digital
, [8 D8 y( B6 C( ~" Q4 ~+ S$ h% p9 ^ >
s& N( \7 z' K > - 2 outputs at the Receiver with three possibilities to match inputs
4 x8 D6 ~; Z7 ?& D1 E! U >
: C2 p. n+ H5 N' o* y- U7 V> - Ability to configure/define analog Transmitter input ranges through
/ W/ k) }7 K& F5 _# b > simple programming method to correspond with full-range analog Receiver
4 G" C9 f, p" ^/ H' i! ]7 u- \> outputs (0 - full voltage).
. x& @2 I! R P$ C>
q: [$ \, j0 X' p7 n, E' j> - Ability to configure and set sample rates for the inputs.
. |( s! w7 k D>
/ _. w1 _2 k+ ~( f* l: x > - Digital output on Transmitter that turns on during the sampling period.
$ ~1 N5 |( X6 Z$ `4 a >
( ^8 n4 B4 z* v4 ]2 p" D% C7 z > - Ability to configure a power saving Sleep Mode in the Transmitter by
( E; L, B; A, j > both software control and input hardware control.
; Y* M: T! S* C7 Q/ ~>
% Q$ a4 }! |: M/ n; j! P > In order to configure the units, we would need a way to make the
" O- e4 N1 D( S% X. e7 C. k> settings. This would preferably be from a computer terminal so that
5 Y; f/ x' e* ]8 r$ } > configurations can be saved or easily duplicated for production volumes.
" _- |) r$ Z# s4 X4 Y2 `* }> The units should be small and compact with shielding, and able to mount
8 W7 }& A) d8 v( P$ e8 ?. [3 Q> to a printed circuit board with header connector.
6 e- D9 w( y2 [3 A. u+ O >
% `4 f ] I) Y$ Y' X > At this time, we are interested in samples of a pair of modems that
; b9 i$ ^( i3 ?( [& S9 T0 a4 f> might be similar to this proposed system. We do not expect that you
$ b7 O( [: M2 Z5 K> provide all of these specifications at this time. I can describe our
- s9 ^: H% Z% o- M+ K& k: |> immediate application needs in the next email if this project is of
+ E5 G- o2 L/ R9 d% m W > interest to you. Perhaps you can make the samples by those
2 m5 r3 ~: o. T" q7 B% g > specifications. This will allow us to test your radios before we move
0 L. p9 K$ I/ F$ v( G7 x > forward. We are interested in your 900MHz radio to start.
1 x9 t5 k) J: Q' A, N8 p- A$ Q+ k" m2 q
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