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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

# d) z! P: c2 Z8 X. E 客户要求如下,如果哪家工厂可以做,请和我联系
3 O( I5 }* c6 S. f4 S E, c ? > The application that we have in mind is similar to others that we commonly
, O2 s U8 L" m# ]+ p# ?! I" K> have. If we were to pay for FCC approval, we would want to use the modem
" ?7 J6 h+ V) t# _8 t > units in all similar applications under the same approval number.
1 {8 Y1 v) w9 X0 I> Therefore, we would like to be able to configure the units to a specific
6 [! a0 E! B- v- ^; n( [8 W! C > application. For the business that we do, this approach will yield more
- r- C9 O3 C3 {& }# @> sales based on the same product and approval. We are interested in the
+ P+ S5 l3 p4 B Z9 ~- G8 g, V> following specifications:
+ T7 ^' F1 ?. x8 o8 \2 ] P$ U>
8 I4 N% X% y5 G! F9 D" b4 O > - 2 inputs at the Transmitter with three possibilities;
" E+ ]! P& G& r ~1 S, Q" d> 2 analog
# t8 r! ^0 c: Q) y > 2 digital
' k/ s9 w1 R/ d" F> 1 analog and 1 digital
K9 f* i" I+ e+ S>
4 J U6 J. a) o# [ v& h! @; {. ?> - 2 outputs at the Receiver with three possibilities to match inputs
$ W( h7 z# o) ?, Q$ V>
3 i9 p9 }( d+ L: t; a" G) b> - Ability to configure/define analog Transmitter input ranges through
3 j' b( h9 t& i> simple programming method to correspond with full-range analog Receiver
" K& C1 W* O( ?6 g> outputs (0 - full voltage).
& c$ W+ z7 U4 ?" _# j m3 o/ J, \>
. J* l: v' Z6 J3 |0 v3 F9 _ > - Ability to configure and set sample rates for the inputs.
! E+ H/ h7 W6 k! f >
9 C- t; s4 j/ S- c > - Digital output on Transmitter that turns on during the sampling period.
6 ~# Z7 A0 t( ]! G9 v>
# U, T, x/ g% ^- U > - Ability to configure a power saving Sleep Mode in the Transmitter by
: r3 E4 O& S; o. `/ } > both software control and input hardware control.
- F5 i! ~/ V1 B: [>
5 p t: V+ M W F/ W > In order to configure the units, we would need a way to make the
9 }8 Q* `1 _( p* S! `) g> settings. This would preferably be from a computer terminal so that
* R& r4 T6 k0 u2 ]$ T > configurations can be saved or easily duplicated for production volumes.
. ~# t+ y8 O, p5 V' G } g0 g> The units should be small and compact with shielding, and able to mount
6 ~1 g7 Q- w8 L8 l" r" `* a9 @0 p> to a printed circuit board with header connector.
/ T/ C" c, ]% }- j >
+ p+ J v, @. w/ o> At this time, we are interested in samples of a pair of modems that
: R+ T; f9 i! [ > might be similar to this proposed system. We do not expect that you
) }( s" M- {5 r6 ]) ^> provide all of these specifications at this time. I can describe our
) `$ Q8 ~4 @4 N N> immediate application needs in the next email if this project is of
% W' G; S, n0 I; x6 _4 I> interest to you. Perhaps you can make the samples by those
# @9 y* n( i" S> specifications. This will allow us to test your radios before we move
$ K. u) L" c' Y > forward. We are interested in your 900MHz radio to start.
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