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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

9 a. u5 E) k# q6 z. E客户要求如下,如果哪家工厂可以做,请和我联系
! h# R8 o& y) V8 L$ ^ > The application that we have in mind is similar to others that we commonly
, Y }& m2 B7 _3 {4 M> have. If we were to pay for FCC approval, we would want to use the modem
7 {! A4 X# S! Z7 I7 ]0 F) F0 U/ P> units in all similar applications under the same approval number.
0 N8 X& I+ S% N* M2 w! ]& m+ ? > Therefore, we would like to be able to configure the units to a specific
* J# z4 U# m$ C6 \4 n> application. For the business that we do, this approach will yield more
7 v. @! `8 ^9 E& { > sales based on the same product and approval. We are interested in the
4 _: ]7 }: G; @> following specifications:
& w% J: I/ q M N) G5 W0 v >
% x! | q) y, j, g9 u> - 2 inputs at the Transmitter with three possibilities;
# C8 }$ S3 I3 B3 u, M# i > 2 analog
8 J8 d+ ?* h" A > 2 digital
) n5 U. N5 h$ E5 U+ s6 _! Z2 @> 1 analog and 1 digital
1 k+ K6 \) q% G& s" R: B >
- i! ]; z- `; g4 p3 I- d > - 2 outputs at the Receiver with three possibilities to match inputs
: E# J7 L5 t6 L5 e6 Y8 p+ V>
* { q6 P, |, h > - Ability to configure/define analog Transmitter input ranges through
5 c+ C8 ]6 W* A> simple programming method to correspond with full-range analog Receiver
/ h4 m; {0 @- x6 ? > outputs (0 - full voltage).
2 l; u- I* q# }. y+ r. `) ^' l>
9 [0 D' g+ L7 P/ {7 u > - Ability to configure and set sample rates for the inputs.
' J$ J' |' E6 u: _) D >
9 M7 F* v7 o/ c9 v/ _% ^* S& _ > - Digital output on Transmitter that turns on during the sampling period.
9 R( g8 O' p4 F0 F6 Y >
! {+ s( ~8 r3 }7 K> - Ability to configure a power saving Sleep Mode in the Transmitter by
" F9 ?# Y5 H% s& K( h/ c& ?: f* W) L > both software control and input hardware control.
( q$ Z4 S! q9 f& V; l" l( s>
, x. e2 M, q- W6 t! t2 J6 z > In order to configure the units, we would need a way to make the
9 B, e3 w1 @. r6 m> settings. This would preferably be from a computer terminal so that
4 F: O, F+ a8 R. C s6 z! R6 x> configurations can be saved or easily duplicated for production volumes.
! \; F5 z+ y; ^6 o/ k> The units should be small and compact with shielding, and able to mount
, I' y! N5 i- E) R/ V7 { > to a printed circuit board with header connector.
' i" } ]8 h( O+ L6 i. G >
( ?, t! ]6 f6 q+ W1 U> At this time, we are interested in samples of a pair of modems that
% g/ D: \. T8 B6 f0 J' ^- k> might be similar to this proposed system. We do not expect that you
- G! s$ z% P. Q* l- ?> provide all of these specifications at this time. I can describe our
. M5 y. b8 i$ L0 v$ {, _ > immediate application needs in the next email if this project is of
6 N3 r& L9 E. G$ [+ h7 r8 L7 [> interest to you. Perhaps you can make the samples by those
$ f! }. z4 A3 h& n6 c1 c> specifications. This will allow us to test your radios before we move
9 r1 }* V# N" V* F > forward. We are interested in your 900MHz radio to start.
: o3 f8 b k, R
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