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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 f* b" z1 d" k6 C客户要求如下,如果哪家工厂可以做,请和我联系
5 r' ~2 W* ^9 O > The application that we have in mind is similar to others that we commonly
% l4 }$ A2 o# R, F) w8 { > have. If we were to pay for FCC approval, we would want to use the modem
7 u1 o" k3 ~# M: E8 p> units in all similar applications under the same approval number.
+ n+ j5 L1 i' s# s" v > Therefore, we would like to be able to configure the units to a specific
! B- {' A% Q4 D; }1 \% s* n7 ] > application. For the business that we do, this approach will yield more
0 ^% {- x0 s2 u" i0 E> sales based on the same product and approval. We are interested in the
V3 F5 g0 W7 m2 k$ L! i > following specifications:
, A8 Y9 g. j, D/ V* d >
+ r* S( ?, N: q' L$ J8 N; f/ W> - 2 inputs at the Transmitter with three possibilities;
& q6 }. I* f: G m> 2 analog
+ o7 F& t! J/ Z# @# M > 2 digital
* V5 @" W# v8 K! }2 A; r- k- l> 1 analog and 1 digital
# [. I. t, m1 H/ e" u >
0 t+ X7 B, Y7 S! H% C) N > - 2 outputs at the Receiver with three possibilities to match inputs
# I1 u0 s* z9 w! f8 c>
8 X* w6 c. Q: Y7 D9 S- S- O6 b* T > - Ability to configure/define analog Transmitter input ranges through
2 h# W/ S! }6 A- z% q( x! M> simple programming method to correspond with full-range analog Receiver
, @5 a5 Y* \3 l% r7 w) {3 {9 t> outputs (0 - full voltage).
V5 C3 W+ a% `( ^7 G9 S >
) K5 }, _) V; K7 B4 p> - Ability to configure and set sample rates for the inputs.
- ?. M1 Z! X& \: w2 H >
2 @$ V: J' T8 L; @ > - Digital output on Transmitter that turns on during the sampling period.
' L6 e, `4 o3 E$ z! p: O>
5 ?/ b2 f" S! b( v: r q, q> - Ability to configure a power saving Sleep Mode in the Transmitter by
) s' I* Q7 `8 t9 [- V \> both software control and input hardware control.
8 d6 i. _; }/ |2 X/ L >
2 k7 J4 ]* H+ K > In order to configure the units, we would need a way to make the
1 S* S! W* W" |! X/ g: |; {) M> settings. This would preferably be from a computer terminal so that
0 I0 `" W' B; T8 O6 {7 Q8 x> configurations can be saved or easily duplicated for production volumes.
0 O* x" V$ |5 k/ K; N0 M! ~> The units should be small and compact with shielding, and able to mount
4 I& p; j' s$ O) g: I( ^4 {> to a printed circuit board with header connector.
# X3 }% T1 Y. v3 `9 n >
7 Y6 s G: w+ q# d8 G1 F5 \> At this time, we are interested in samples of a pair of modems that
( `; v& p2 p; C, X! C1 H> might be similar to this proposed system. We do not expect that you
+ x% O$ h$ n/ D) k7 `& }> provide all of these specifications at this time. I can describe our
. W& y4 C5 U% Q5 K4 t> immediate application needs in the next email if this project is of
9 I, ^+ N; f3 p2 g5 p0 B > interest to you. Perhaps you can make the samples by those
0 u1 u- z) [( @ > specifications. This will allow us to test your radios before we move
- j; l z# g4 Y% Q( c" Q( ^> forward. We are interested in your 900MHz radio to start.
) ^5 Z3 i/ f; _' G
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