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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

+ _8 B7 o2 @3 | 客户要求如下,如果哪家工厂可以做,请和我联系
. W* z2 |- d" P. X) i > The application that we have in mind is similar to others that we commonly
# }- t1 \ O% w> have. If we were to pay for FCC approval, we would want to use the modem
" M8 k6 j2 b+ x/ n8 N > units in all similar applications under the same approval number.
! M8 o( R+ O3 Q2 K) }. c3 t> Therefore, we would like to be able to configure the units to a specific
- E. ^# m1 I j1 v) H7 Y> application. For the business that we do, this approach will yield more
2 F' @! `- R1 P4 Y > sales based on the same product and approval. We are interested in the
- l9 h6 |4 _1 \8 v# N" ?( d! { e: D > following specifications:
, K+ c2 x( R) s F3 ? >
3 J, v5 W9 a" H- G# i/ O > - 2 inputs at the Transmitter with three possibilities;
/ ~! U4 }1 N7 H8 [/ t; w> 2 analog
- U* U- s6 e6 h+ M, H* x> 2 digital
9 x9 D4 A! \( i. I" W> 1 analog and 1 digital
# C+ O4 N# m) K: F >
" K! R% _3 A0 d- Q> - 2 outputs at the Receiver with three possibilities to match inputs
" W" I0 `: G5 R( m2 I; o' o; @ >
1 y i/ Q4 z, J+ `8 ~> - Ability to configure/define analog Transmitter input ranges through
$ |2 O' Z1 b, ^3 j( L> simple programming method to correspond with full-range analog Receiver
: @% C1 Y f# P! Q > outputs (0 - full voltage).
4 t5 Z2 [/ S) l2 u9 b/ J, _ >
, v* y4 J0 P; |' R5 L# ?> - Ability to configure and set sample rates for the inputs.
" I5 e5 G* F$ H o( S Z>
: H( d; a1 c) G6 W! n( @> - Digital output on Transmitter that turns on during the sampling period.
9 Z; w. E% z- m" k7 [* Z7 s >
( w* N: D: l9 |- j! ~8 k4 q > - Ability to configure a power saving Sleep Mode in the Transmitter by
9 X h$ C! k1 L > both software control and input hardware control.
! h& u% r& K: g* B+ z2 [$ m7 f>
* p' [" l/ K2 n' G* E7 b > In order to configure the units, we would need a way to make the
( y# c# M) M6 O5 J, f6 m! v> settings. This would preferably be from a computer terminal so that
$ k, O# p% k4 M$ i& s" w > configurations can be saved or easily duplicated for production volumes.
8 ~5 U3 C; u- }& _> The units should be small and compact with shielding, and able to mount
) ]; w$ f- W) U7 A% F5 [/ F > to a printed circuit board with header connector.
5 W5 o3 c" [* i$ B0 t" J& X>
f. q) G: L( s9 l, `! G > At this time, we are interested in samples of a pair of modems that
+ W) h2 B5 O; s0 d> might be similar to this proposed system. We do not expect that you
1 n% R+ X8 F& z4 r > provide all of these specifications at this time. I can describe our
- P- j% U! N/ s > immediate application needs in the next email if this project is of
9 ]) T) _ Y3 u8 Y: B5 L3 a > interest to you. Perhaps you can make the samples by those
7 z+ r! K( C- g, e > specifications. This will allow us to test your radios before we move
2 K* P, \6 P8 c/ k% I5 p> forward. We are interested in your 900MHz radio to start.
) B" F4 I4 e, n# N K" F
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