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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

2 i& W5 e% Q$ X8 o# C$ a! `客户要求如下,如果哪家工厂可以做,请和我联系
0 {; \3 t; l5 b> The application that we have in mind is similar to others that we commonly
: t- q1 ^) F; o8 \0 i> have. If we were to pay for FCC approval, we would want to use the modem
* g3 H. ]# X$ p3 @ > units in all similar applications under the same approval number.
7 a8 E1 W* U3 s! F B. X! ? > Therefore, we would like to be able to configure the units to a specific
% N0 N, I, M, F1 w$ K8 @6 C$ f > application. For the business that we do, this approach will yield more
! ?/ t; n! P) a6 a/ t; @2 H) t( C$ c> sales based on the same product and approval. We are interested in the
: R4 v% x* E/ T# j9 K> following specifications:
7 `& v' G' n# b& E# ^- W7 ? >
# Y3 x* m G* g- y2 ~> - 2 inputs at the Transmitter with three possibilities;
9 W0 E% R. }0 d D8 N H > 2 analog
6 s. @2 O* u8 q* T > 2 digital
+ {1 m1 `) l' C6 j> 1 analog and 1 digital
! o, b# b9 A6 w( ^1 { >
- T# C5 h3 V6 }1 G+ T> - 2 outputs at the Receiver with three possibilities to match inputs
" z' X4 N/ |; s7 ?6 ~>
1 Q% ]! V4 L% R0 F9 f0 V! F > - Ability to configure/define analog Transmitter input ranges through
. N# c5 \) l; c8 L& c4 S+ m> simple programming method to correspond with full-range analog Receiver
% ~+ A) P6 s0 U > outputs (0 - full voltage).
) e# t& t3 F! m" y6 }: E >
+ P# N7 O8 W# F# V1 g9 J* v > - Ability to configure and set sample rates for the inputs.
3 H# w& d1 i( N6 ^; h) p$ e>
' o% N& L3 {6 n0 b; Z2 `% g" C1 v> - Digital output on Transmitter that turns on during the sampling period.
% w5 Z/ G* g( x% ]% G! h >
2 u/ z, n7 J, Q5 ?% {> - Ability to configure a power saving Sleep Mode in the Transmitter by
6 q1 _+ ?% E: m: o5 K% E4 v7 j1 z, T7 T > both software control and input hardware control.
& ?- s5 e2 p: A, T- _* P @>
, G- T* U1 h: u, |7 y7 ]> In order to configure the units, we would need a way to make the
. v' t+ z, a/ U) u" V; O> settings. This would preferably be from a computer terminal so that
4 t% T' _7 N* g' R1 ~& Z( V > configurations can be saved or easily duplicated for production volumes.
1 F7 j+ o* m9 k8 I4 C> The units should be small and compact with shielding, and able to mount
8 g3 J7 @2 G/ ?0 l, V> to a printed circuit board with header connector.
2 `- p4 t9 {- _1 Z+ N7 [8 I% r>
! R* ~5 v) h- s5 ^> At this time, we are interested in samples of a pair of modems that
" \( h+ }( L* \+ j > might be similar to this proposed system. We do not expect that you
* \5 _+ U9 m- G& @$ i( E$ C> provide all of these specifications at this time. I can describe our
) B9 L: n' U8 Q& \. C M% H3 g > immediate application needs in the next email if this project is of
5 \' }( }* b; L2 G) O> interest to you. Perhaps you can make the samples by those
# Y k0 o! r* R, \7 C> specifications. This will allow us to test your radios before we move
- N. H4 G8 W9 ^3 ]5 F; m9 Y0 g> forward. We are interested in your 900MHz radio to start.
7 d/ L1 ~- N: { j- u- s. I! f
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