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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

3 L! T, r7 X4 R/ T: p 客户要求如下,如果哪家工厂可以做,请和我联系
' X$ L+ E A1 A% I. U> The application that we have in mind is similar to others that we commonly
: s3 t" N) @$ |& x1 m > have. If we were to pay for FCC approval, we would want to use the modem
4 @5 O2 L0 M5 f > units in all similar applications under the same approval number.
7 d K$ L& O% G, J- M> Therefore, we would like to be able to configure the units to a specific
9 K: c/ d1 a" `& k }> application. For the business that we do, this approach will yield more
0 Z/ v5 y0 n h- ~/ Q& ^/ @> sales based on the same product and approval. We are interested in the
5 I3 J6 K y0 P! o) u1 o > following specifications:
# ]8 Z# r3 \/ T( Y( L0 z+ i >
' j# j c1 \# Y > - 2 inputs at the Transmitter with three possibilities;
3 O _& G% P3 p- c> 2 analog
* k; q6 D( \( B* X- I* E( H) l; r> 2 digital
8 v* H% p0 k# z \" v. x2 x > 1 analog and 1 digital
% s( {) G7 O/ \) T- s>
5 z* t6 e; K" m2 o > - 2 outputs at the Receiver with three possibilities to match inputs
; I' \% C! Y) m' l/ e* Z6 _ >
& J/ J5 y" Y) v> - Ability to configure/define analog Transmitter input ranges through
8 _9 i& P8 D$ f+ J! m; X# c, y > simple programming method to correspond with full-range analog Receiver
' f' g% _% x! R8 h* [> outputs (0 - full voltage).
# Z ]) a0 W' R! d8 I. D) Z( a>
' X: d! d+ n1 q: k1 e! B6 z8 d > - Ability to configure and set sample rates for the inputs.
/ m' ^& z9 ~6 q. e! W8 `3 E >
- n9 V5 L% S- z) x> - Digital output on Transmitter that turns on during the sampling period.
( k5 [0 h Q# ^; y9 A0 v>
) ^7 o V6 m& i+ O8 R$ O > - Ability to configure a power saving Sleep Mode in the Transmitter by
1 u- n4 T( f& H6 n1 u > both software control and input hardware control.
" w( B5 q) J4 I/ \ >
3 `& b0 x) e z- @. M- Z5 g > In order to configure the units, we would need a way to make the
! K4 a6 u# ^7 z& {7 O" y> settings. This would preferably be from a computer terminal so that
; e3 K* G6 c7 ~& t. \0 z > configurations can be saved or easily duplicated for production volumes.
5 Y6 I) ~# I: i> The units should be small and compact with shielding, and able to mount
" u9 ?' z2 {/ Q8 |' J1 r> to a printed circuit board with header connector.
+ w% C0 ~$ X7 q >
) X9 I6 X( j- d/ ]9 ^) h > At this time, we are interested in samples of a pair of modems that
8 B* F2 e0 J+ z > might be similar to this proposed system. We do not expect that you
; ^2 X- y+ K D4 a: y" y > provide all of these specifications at this time. I can describe our
4 h; v& Y' Q9 s > immediate application needs in the next email if this project is of
; q4 `% X3 Q3 v; m) G5 r/ K, A > interest to you. Perhaps you can make the samples by those
' h$ y: T: V7 M: w > specifications. This will allow us to test your radios before we move
0 e2 o" F$ B7 v* K% i+ f> forward. We are interested in your 900MHz radio to start.
6 D& L4 ] w, H* H) L9 f2 A! o2 r5 ]
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