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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

' U9 x' I' K6 h0 B: R客户要求如下,如果哪家工厂可以做,请和我联系
8 g# @9 \& e. |9 E> The application that we have in mind is similar to others that we commonly
! O! X0 Z4 R# T& o [ > have. If we were to pay for FCC approval, we would want to use the modem
3 E4 P/ S: C5 d8 ? > units in all similar applications under the same approval number.
, S9 ?5 e. b# ~0 H > Therefore, we would like to be able to configure the units to a specific
1 s: D. j0 @ p& }> application. For the business that we do, this approach will yield more
" y- X; u, A" F1 p$ Y > sales based on the same product and approval. We are interested in the
$ ^9 p6 c4 Q/ [" P/ I8 L > following specifications:
5 W x3 q: o/ u9 }2 |3 ?4 i& k, q0 J>
$ @/ J% \; ]/ a3 h0 c6 J( O > - 2 inputs at the Transmitter with three possibilities;
- ~( x! m9 y2 {# g/ ^: ~ > 2 analog
/ a( l2 z: P. f> 2 digital
: d* S4 A: _3 E- Q> 1 analog and 1 digital
$ Y: d; E4 V7 J! `9 V8 \>
Z; B4 P$ v* W$ S S > - 2 outputs at the Receiver with three possibilities to match inputs
- o3 b) z+ V5 g) T3 t5 f1 @. ^6 p >
9 M% r7 u8 X8 s7 {> - Ability to configure/define analog Transmitter input ranges through
" `3 {7 ?0 a" a1 N> simple programming method to correspond with full-range analog Receiver
3 h1 N8 t$ \6 n% o3 Q. H > outputs (0 - full voltage).
X J. f$ w2 B. F>
# n) q5 m- F, ~* O* o> - Ability to configure and set sample rates for the inputs.
3 c9 ?1 g% o1 a/ H7 W3 i >
: b- }9 N. z' G% @+ k > - Digital output on Transmitter that turns on during the sampling period.
0 j* R B. R7 v2 _>
$ R/ h& ^* y/ W4 N7 n > - Ability to configure a power saving Sleep Mode in the Transmitter by
! f$ X6 [+ q2 Y, y5 i7 G$ h' T > both software control and input hardware control.
& l9 b1 Q/ s# N- t5 r% Z >
6 }6 r, T) _5 K+ @+ n: _6 V- x > In order to configure the units, we would need a way to make the
5 n7 b c: t, w# N S> settings. This would preferably be from a computer terminal so that
% V- L2 G) H1 W" v7 V' J$ Y> configurations can be saved or easily duplicated for production volumes.
+ u8 Z; l: V. ~8 Q* E, s% K> The units should be small and compact with shielding, and able to mount
2 P# D& v+ _0 T V0 ?> to a printed circuit board with header connector.
% D( j4 f/ t, y8 H >
) W4 ]+ i$ k4 j3 h: @> At this time, we are interested in samples of a pair of modems that
9 i O Z& h% v! S" d6 C> might be similar to this proposed system. We do not expect that you
" }) G. D8 |2 ^; G7 |" c8 x> provide all of these specifications at this time. I can describe our
9 m7 }8 ~0 T+ Z6 R! z7 T1 L4 L K' D> immediate application needs in the next email if this project is of
k9 a0 ?6 g- h6 M. J: [7 m/ K9 l! X* c > interest to you. Perhaps you can make the samples by those
3 K1 P M/ p* F4 P% s> specifications. This will allow us to test your radios before we move
c; j* D/ i& D2 K6 K9 Y6 Y> forward. We are interested in your 900MHz radio to start.
% X: [# U) f1 [
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