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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

) ^! y# Z: N) t1 |4 _1 F- L: m 客户要求如下,如果哪家工厂可以做,请和我联系
0 Y6 a4 L( P- Q. D9 t> The application that we have in mind is similar to others that we commonly
5 {5 y1 i( j5 e, ?- n5 b% c: _> have. If we were to pay for FCC approval, we would want to use the modem
$ s% W q$ w; ]7 H# D) M# s > units in all similar applications under the same approval number.
" G# E# [/ k7 E3 r; r> Therefore, we would like to be able to configure the units to a specific
6 E& \) w3 n. x. @1 g# v > application. For the business that we do, this approach will yield more
' R% q6 A) ^' L* z/ l > sales based on the same product and approval. We are interested in the
( \! S5 Z6 ~- o) _: f& u > following specifications:
+ o/ i5 B1 m2 d9 o p3 m>
: g% c, N. H w) A9 D% V > - 2 inputs at the Transmitter with three possibilities;
! L1 |0 {/ ?7 w! r > 2 analog
# e- C! c: p$ `1 R$ N+ {; m > 2 digital
0 A6 I; h! @. y, V$ _& E > 1 analog and 1 digital
% i- R" D( C/ `: i- g0 n>
8 U6 D2 M& O2 X" Z5 p > - 2 outputs at the Receiver with three possibilities to match inputs
# F$ y: o% b7 F3 k( z+ I>
' C Y; X( W5 X0 n5 _> - Ability to configure/define analog Transmitter input ranges through
' M: B" e* c- T/ ]; ` > simple programming method to correspond with full-range analog Receiver
g6 h- V# y' m > outputs (0 - full voltage).
8 O) q2 f! H9 F7 {6 s: k >
' j* z) ^: b; W0 E" y+ }> - Ability to configure and set sample rates for the inputs.
9 l+ a0 N/ f$ q7 a>
1 o0 Y K, u' m6 G8 T > - Digital output on Transmitter that turns on during the sampling period.
# J# d. X7 P! T5 R0 x/ d >
# n9 [! C! v/ r% E) `0 w2 \( J> - Ability to configure a power saving Sleep Mode in the Transmitter by
+ h3 R Y, L( ?- l4 v2 Z > both software control and input hardware control.
7 f0 T/ o) t" v5 V; { >
( Q2 f7 \! o, C3 Z( g > In order to configure the units, we would need a way to make the
$ ^4 p% X0 x3 s> settings. This would preferably be from a computer terminal so that
% R& |0 z/ x: d3 Q) r- |> configurations can be saved or easily duplicated for production volumes.
8 H M% Z1 o0 H F, {# w> The units should be small and compact with shielding, and able to mount
5 E/ o9 T. j+ E2 c> to a printed circuit board with header connector.
5 a3 ]3 n& \+ g9 ?+ U+ A9 N+ I >
* r* s6 U0 d& P! d > At this time, we are interested in samples of a pair of modems that
9 E: ~6 W, f' K; q* [* v2 S2 c9 V> might be similar to this proposed system. We do not expect that you
/ J. k. O0 x$ m> provide all of these specifications at this time. I can describe our
8 P* O2 F$ R3 Y p; }* s( T > immediate application needs in the next email if this project is of
. f/ Y* K% S* C$ M; P5 y& L0 ~ > interest to you. Perhaps you can make the samples by those
0 z) }$ G' X( x. c1 x8 b> specifications. This will allow us to test your radios before we move
' w& }/ I) h, M) I" H> forward. We are interested in your 900MHz radio to start.
0 a2 @* V; f/ @2 C/ H/ x
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