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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

# t5 c8 F1 t5 c 客户要求如下,如果哪家工厂可以做,请和我联系
4 ~) \9 F4 @" c o8 W2 G+ q> The application that we have in mind is similar to others that we commonly
7 _ l' V/ q) W( T: F w > have. If we were to pay for FCC approval, we would want to use the modem
$ S! x( g" z! X9 i5 `; }2 G- _ > units in all similar applications under the same approval number.
: W4 Z" _. \6 L( a# }9 f> Therefore, we would like to be able to configure the units to a specific
, G8 N0 }1 [' P# t1 a/ n > application. For the business that we do, this approach will yield more
$ z- O+ ]; ?, s+ p; y9 M> sales based on the same product and approval. We are interested in the
& [; p" R" A) [9 Q+ R, b. V5 z$ N> following specifications:
; j h T/ Q* w: F >
5 s9 n9 N7 u7 \4 i: w) K' c> - 2 inputs at the Transmitter with three possibilities;
' \' c# E9 m5 z% ]+ K) t9 _% T+ K> 2 analog
& Q0 s1 {$ y$ B' F2 ]" ?3 c9 T > 2 digital
+ L' P7 A- s1 [. C7 ^> 1 analog and 1 digital
2 F+ R, m2 ?) Y >
7 i8 y' b t, e% ]8 n1 X) | > - 2 outputs at the Receiver with three possibilities to match inputs
/ _$ A4 R3 G h3 p3 U6 T >
2 Q/ m8 ^9 H8 Y! x > - Ability to configure/define analog Transmitter input ranges through
* ?* ]9 P* w/ a0 t d& S$ X > simple programming method to correspond with full-range analog Receiver
- n& d8 }5 U( D& d > outputs (0 - full voltage).
# b+ E4 z7 j8 f- l( h5 g >
3 C0 R; H }' Z> - Ability to configure and set sample rates for the inputs.
& y8 {- s5 f3 o) ^2 H4 D/ g >
- {! y) |2 ?) C% s% l% [. Z5 m9 ^> - Digital output on Transmitter that turns on during the sampling period.
2 t+ ]% }- \5 g) A>
/ I# {. |! o& |/ a > - Ability to configure a power saving Sleep Mode in the Transmitter by
$ u: b8 X% D) A > both software control and input hardware control.
2 A a) E2 H' t2 l>
: j, y( s& Y" s/ w4 G& h& H > In order to configure the units, we would need a way to make the
. L0 V( c: c* w8 f- X. P> settings. This would preferably be from a computer terminal so that
, t% }8 r; ?: I> configurations can be saved or easily duplicated for production volumes.
9 d+ P7 g9 Y! V4 _ > The units should be small and compact with shielding, and able to mount
; R$ Q( ^; d. S- A > to a printed circuit board with header connector.
9 p$ Y( k2 T( I! p>
- ]* C" a6 u6 `# N> At this time, we are interested in samples of a pair of modems that
8 i+ N! _& {0 {3 h' C5 M" i > might be similar to this proposed system. We do not expect that you
) t, u5 u% Y% O Q9 F9 R% j > provide all of these specifications at this time. I can describe our
* y5 |; U8 r% M2 L) Y> immediate application needs in the next email if this project is of
1 z2 N$ N! N0 h/ a( a8 ?$ D; v, V0 w> interest to you. Perhaps you can make the samples by those
& F( S+ P3 x6 T5 Q6 ` > specifications. This will allow us to test your radios before we move
. @2 V: L; q- K; g: Z > forward. We are interested in your 900MHz radio to start.
, [$ S9 O2 c }# m
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