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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

5 {) z9 a+ t% F; D; u4 l/ S9 e客户要求如下,如果哪家工厂可以做,请和我联系
. [, q7 y" y" S+ ? m2 _# z> The application that we have in mind is similar to others that we commonly
" D6 n1 N* w7 L; e, c. |$ g) A3 X > have. If we were to pay for FCC approval, we would want to use the modem
! N; ^6 j3 b5 m! b$ o> units in all similar applications under the same approval number.
; d9 ]- Y; N0 e! i0 v > Therefore, we would like to be able to configure the units to a specific
5 w7 A: P% K1 g* {% U. U > application. For the business that we do, this approach will yield more
! R/ w' G1 k$ \4 n > sales based on the same product and approval. We are interested in the
6 g* r# d7 d, Y! H> following specifications:
! @9 X, n4 k- U' `$ D& i- E `>
9 t* L1 l* k& A7 C- x+ p! o- E' Y> - 2 inputs at the Transmitter with three possibilities;
0 J* I) T* {* o4 o! Z > 2 analog
! y6 x. j8 ~% L" ~1 Q0 V5 X> 2 digital
x5 v* P5 G F+ h2 s4 Y& P > 1 analog and 1 digital
! m- I0 _3 w5 |% k>
$ J) K$ T: w& d3 p; S0 f > - 2 outputs at the Receiver with three possibilities to match inputs
5 u! L7 p: Q* |6 A >
& U: y! X& Z! Y+ F> - Ability to configure/define analog Transmitter input ranges through
# ?# Q1 [/ D- x' V> simple programming method to correspond with full-range analog Receiver
H% C" k* I* N: k> outputs (0 - full voltage).
. O) q/ H( h4 }5 k$ H >
: a1 {4 z8 z$ v( W/ m- _" U> - Ability to configure and set sample rates for the inputs.
g6 R4 G j) F) a4 }>
9 }3 M7 N: f) { > - Digital output on Transmitter that turns on during the sampling period.
8 K: @3 R( q8 K3 T2 e >
" Q+ u0 Y9 w- G9 Y9 x3 C> - Ability to configure a power saving Sleep Mode in the Transmitter by
6 U; L/ |: a7 ^" T> both software control and input hardware control.
2 J3 A- V+ u) y- T0 l: @3 A>
. d! S( m* e' R* @" u> In order to configure the units, we would need a way to make the
! L+ _; L1 i3 k- @9 H3 J > settings. This would preferably be from a computer terminal so that
' d6 z2 F! \3 K. P. ^ > configurations can be saved or easily duplicated for production volumes.
/ o; @% d/ d% H* V% o# E > The units should be small and compact with shielding, and able to mount
: \, D+ ]9 s# m> to a printed circuit board with header connector.
) M T0 ]2 z7 Y) s Y# y>
9 O2 ~% s7 F4 ?> At this time, we are interested in samples of a pair of modems that
: C) z s' B7 m& }3 @ > might be similar to this proposed system. We do not expect that you
4 |+ u" B( x0 {( F1 f > provide all of these specifications at this time. I can describe our
1 t! v5 U& C- b > immediate application needs in the next email if this project is of
4 [ h# ?/ o$ i: G! T @ > interest to you. Perhaps you can make the samples by those
* M* @& X% D, }/ q9 [, U > specifications. This will allow us to test your radios before we move
- L2 E+ i& g6 \# U# C& M& V. C > forward. We are interested in your 900MHz radio to start.
6 ^* N& o) G6 @ a9 ?
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