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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

* t+ c: n7 V! Y6 ]; N- o客户要求如下,如果哪家工厂可以做,请和我联系
" }4 t" `' j O' M, Z# s+ t8 G > The application that we have in mind is similar to others that we commonly
6 @3 }. P) r6 B" |1 I > have. If we were to pay for FCC approval, we would want to use the modem
0 S4 `+ q; C; P- O4 {1 }9 o$ X > units in all similar applications under the same approval number.
$ e/ d' ?" c1 e; ~, f& H6 P> Therefore, we would like to be able to configure the units to a specific
5 Z/ t; Y) f% m. K> application. For the business that we do, this approach will yield more
D/ i. S1 P$ r: O- c, O7 l > sales based on the same product and approval. We are interested in the
5 a* l* I7 f' F# |> following specifications:
# ~- ]/ V& d$ T( `) G >
! [; _1 S- D, L5 ^0 S1 g! x> - 2 inputs at the Transmitter with three possibilities;
: U2 D* B2 V- e/ K. T- d> 2 analog
9 U* l8 t @- V2 K5 h! Q& i> 2 digital
: A+ `$ b, ~" C. G > 1 analog and 1 digital
, H! |' c8 y7 N" k+ [; o >
. H5 |( L' }( I> - 2 outputs at the Receiver with three possibilities to match inputs
) L: ~6 a3 S$ b$ b2 _6 S >
. j: c6 ~ B- [3 x> - Ability to configure/define analog Transmitter input ranges through
9 w+ {: @0 v3 p3 i> simple programming method to correspond with full-range analog Receiver
0 f& a2 X" r# V2 {% ]: C8 ]4 F> outputs (0 - full voltage).
* { b+ S/ {# a$ a9 E* t >
) R. _8 S$ i0 b3 Z- E- ]/ O- M7 f% P( H> - Ability to configure and set sample rates for the inputs.
/ S; m7 g! ^3 u2 w7 l# Y3 T >
5 p# r9 f. e$ g3 P4 h> - Digital output on Transmitter that turns on during the sampling period.
: {0 ^" e4 h( ~) S>
2 t+ L( {$ x3 y/ q) Q! w5 i: F> - Ability to configure a power saving Sleep Mode in the Transmitter by
7 i, p u4 Z7 X( U& U0 @1 p* \ > both software control and input hardware control.
- `3 L0 n5 B/ J3 l d/ b9 `9 q >
: M$ K9 A& f0 k, O! v> In order to configure the units, we would need a way to make the
% b, F# e& t5 r# e/ v) n) f> settings. This would preferably be from a computer terminal so that
( c$ f5 k3 W, J > configurations can be saved or easily duplicated for production volumes.
8 ~/ r7 ^# V `$ K> The units should be small and compact with shielding, and able to mount
- W( j8 P9 P7 H. s* |( {! ^> to a printed circuit board with header connector.
) y& K- v( f+ P' y7 \9 h# f >
( B! \% S1 c/ s. W+ ]8 H> At this time, we are interested in samples of a pair of modems that
; J! b" u. f# F > might be similar to this proposed system. We do not expect that you
}' Q5 y" c5 }( n2 m4 E* {( e. Z; T> provide all of these specifications at this time. I can describe our
6 Z/ d# y& K1 L/ q+ j* s6 _ > immediate application needs in the next email if this project is of
+ U% \- B$ `3 Q2 a8 Y$ Q4 a > interest to you. Perhaps you can make the samples by those
/ ^/ w x9 H7 F. ]9 P# ]) Y" X+ X9 I > specifications. This will allow us to test your radios before we move
# y: O; t9 Q/ j' c6 U > forward. We are interested in your 900MHz radio to start.
+ T8 f( u+ X! N8 f: ]
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