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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

% F% g* {3 J m1 @$ K, m/ N% ]客户要求如下,如果哪家工厂可以做,请和我联系
- C2 Z* G7 H3 } > The application that we have in mind is similar to others that we commonly
& y: m: A. `, e- A( b> have. If we were to pay for FCC approval, we would want to use the modem
' U) w- U+ @: J1 g5 l > units in all similar applications under the same approval number.
! }; u2 @. ^% {' s' c> Therefore, we would like to be able to configure the units to a specific
; y) |& F% ~3 \& P3 ?- h% T> application. For the business that we do, this approach will yield more
8 F9 t, t7 e& {+ x; e6 g* O > sales based on the same product and approval. We are interested in the
5 R5 _5 Y$ b$ P% A) B/ `7 ~ > following specifications:
' p( _' o% ?7 Z8 |) ~6 d4 t: e>
+ [- R4 f5 b7 C* P+ ~> - 2 inputs at the Transmitter with three possibilities;
) H. z9 F5 r$ Y1 V3 G/ i> 2 analog
& m- Q% O4 m1 y4 w- Q/ ?> 2 digital
1 n1 ~$ x4 R0 Z: [ > 1 analog and 1 digital
2 E1 A1 O* B/ t2 I/ a3 y8 {>
, a! U% \9 s6 e- i2 a S2 r4 ]* z > - 2 outputs at the Receiver with three possibilities to match inputs
# b$ G7 b/ o9 O, j- v4 S >
) w1 |/ x1 o/ p4 y( ] > - Ability to configure/define analog Transmitter input ranges through
6 e. ~" z( E5 d5 H6 B* Q> simple programming method to correspond with full-range analog Receiver
2 @" x3 B$ ~9 V' l > outputs (0 - full voltage).
( A, Y# l7 _, {2 L* t# @>
4 ~% {1 q7 z# [, P T# Q- W > - Ability to configure and set sample rates for the inputs.
, Y# o! W: q% A7 o: {" ], f>
3 ^; M& @9 _6 Q5 g5 r/ c > - Digital output on Transmitter that turns on during the sampling period.
1 W9 W- I: U" E- P5 A >
& f& D" [& z4 y > - Ability to configure a power saving Sleep Mode in the Transmitter by
+ Z9 f% b Q( K% V, u1 _ > both software control and input hardware control.
2 u* W! k( \# X8 B f2 s- a M3 e>
+ d: l+ o% ~, @- I0 \ > In order to configure the units, we would need a way to make the
5 N( x" A$ | L > settings. This would preferably be from a computer terminal so that
( V( h2 c" h3 H2 _5 W> configurations can be saved or easily duplicated for production volumes.
! I2 m$ \% a, `7 }4 L( [/ N4 ~ > The units should be small and compact with shielding, and able to mount
, C+ b; C- B ~3 L' u6 p1 ^ > to a printed circuit board with header connector.
4 H, z: V- ~, z: n >
7 I9 V4 o! f% k L# d- _> At this time, we are interested in samples of a pair of modems that
2 Z6 J3 ?' ?0 X> might be similar to this proposed system. We do not expect that you
+ p) d( q2 H. r; i% d1 V> provide all of these specifications at this time. I can describe our
' J* `5 N2 T2 d. e> immediate application needs in the next email if this project is of
+ y, q/ B/ f+ y- o' H% n) F > interest to you. Perhaps you can make the samples by those
: E1 E3 S- c. x m( Y1 K% a > specifications. This will allow us to test your radios before we move
- p- M8 c1 n5 x! b( @ > forward. We are interested in your 900MHz radio to start.
1 Y" b: x; C( u# c; }
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