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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

4 _* n! N. }8 a% B1 K9 G& X客户要求如下,如果哪家工厂可以做,请和我联系
- X6 j' k: z: A2 W9 b7 W > The application that we have in mind is similar to others that we commonly
8 m! F7 b+ N6 @( W9 D> have. If we were to pay for FCC approval, we would want to use the modem
8 {7 d( A4 A8 J' `& I2 L. ]2 F> units in all similar applications under the same approval number.
+ a. u" c- p# y5 _' k0 E > Therefore, we would like to be able to configure the units to a specific
7 z8 R; t7 t0 e6 n3 H1 h > application. For the business that we do, this approach will yield more
' u4 h) S( M0 I# @# e> sales based on the same product and approval. We are interested in the
- l2 Z+ J" K5 ?> following specifications:
. S2 ?3 `; l0 R3 p1 ]>
8 C; e( s$ G. M& ]2 b2 _7 I4 k. R> - 2 inputs at the Transmitter with three possibilities;
" I4 a- h' G7 s2 A2 Z( g > 2 analog
) s& B" e5 [3 g5 k* [> 2 digital
8 B* [4 k( o: b> 1 analog and 1 digital
# y9 x/ \5 ]* l, K, [9 V>
O. l3 g1 Y5 y$ C7 P* {7 a > - 2 outputs at the Receiver with three possibilities to match inputs
' o' J1 w7 Y3 F8 w c- i5 @ >
. ?4 J/ k: |/ @' a" ^$ K) i4 ?> - Ability to configure/define analog Transmitter input ranges through
6 Q" i- Y5 `, D$ j1 | > simple programming method to correspond with full-range analog Receiver
' E/ c' T8 O2 f> outputs (0 - full voltage).
( X$ ]/ t2 n- |>
# x& k) L1 i* B* u> - Ability to configure and set sample rates for the inputs.
4 ]7 ]- d( \ N >
- `7 v: \6 r) f/ C) h& g* d > - Digital output on Transmitter that turns on during the sampling period.
* A4 ~: q' K7 x) v5 g >
/ | A% j6 Q+ S% E. a1 I% x# Z > - Ability to configure a power saving Sleep Mode in the Transmitter by
& t+ F( }( h5 L% Z> both software control and input hardware control.
( V; s. M+ ?) B. @0 W >
0 J% T1 U* l" ~0 S> In order to configure the units, we would need a way to make the
2 z" F7 A) |- I! c% H' z1 f f> settings. This would preferably be from a computer terminal so that
4 e5 m9 w% P0 w, S > configurations can be saved or easily duplicated for production volumes.
! H p/ f7 l- ]- d, g# Q g> The units should be small and compact with shielding, and able to mount
$ n/ B+ e$ i: x > to a printed circuit board with header connector.
. t8 C* ]7 Y# T# H+ \ >
6 D$ T$ C: r2 y" ? > At this time, we are interested in samples of a pair of modems that
% Z. D/ t% N" x0 V, `& C0 z > might be similar to this proposed system. We do not expect that you
+ q8 L$ G5 O I0 p' F > provide all of these specifications at this time. I can describe our
) Y5 M7 n3 q' B# A> immediate application needs in the next email if this project is of
/ g. y+ ?% V, e' { > interest to you. Perhaps you can make the samples by those
+ L' @8 _4 y% `> specifications. This will allow us to test your radios before we move
7 p& @$ ?6 W4 U9 D( g. C. i > forward. We are interested in your 900MHz radio to start.
7 m2 T/ b0 S/ d( n' s
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