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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

, z4 S k% R3 W5 @% Q4 o客户要求如下,如果哪家工厂可以做,请和我联系
9 Y( Q- x% p$ Y+ f! ^ > The application that we have in mind is similar to others that we commonly
5 m& [; g8 K- O+ I > have. If we were to pay for FCC approval, we would want to use the modem
* o& h$ R% T- f+ k/ j! z/ f > units in all similar applications under the same approval number.
# m q/ E y/ k> Therefore, we would like to be able to configure the units to a specific
" }9 N2 @& ^& W' z& V2 Q> application. For the business that we do, this approach will yield more
( `' p0 G$ F+ `' M1 f( N4 J> sales based on the same product and approval. We are interested in the
$ s% b6 I. R. ?* J8 i+ ] > following specifications:
: W6 t( s9 a, X3 x+ O>
( C" V$ @2 n" y' ]. u> - 2 inputs at the Transmitter with three possibilities;
& p [8 @ I$ \2 K( J > 2 analog
~! a: p$ f- D > 2 digital
/ ]7 @1 |9 t" u > 1 analog and 1 digital
! s9 |7 |4 F8 Y" S7 C+ n>
$ t( t1 g& |# X1 A, e2 c* ~# o> - 2 outputs at the Receiver with three possibilities to match inputs
1 W4 s/ J* B6 ~& t >
* q# h1 P; h# i( ~# X, |> - Ability to configure/define analog Transmitter input ranges through
6 o; ~5 c4 R7 u3 ?$ V8 R( K5 w& n > simple programming method to correspond with full-range analog Receiver
: U! b5 Z( X4 e1 s+ X; ]> outputs (0 - full voltage).
2 {# r) y$ }7 k- R9 l>
3 K8 z4 h" y" J/ U8 |# e6 g, G3 k > - Ability to configure and set sample rates for the inputs.
) F2 H- x7 U: u( p4 f2 | >
) g8 G3 u2 u" h2 v4 y > - Digital output on Transmitter that turns on during the sampling period.
% M; b4 J+ _7 R* Z2 |% E5 c >
( r' x1 {3 E2 Y3 m/ B > - Ability to configure a power saving Sleep Mode in the Transmitter by
. J/ L& ~5 z2 ^* z6 h. A' b > both software control and input hardware control.
: m* t8 I0 U8 O$ m2 X >
7 r$ L8 B" p2 }2 {! j6 {, x7 X, [ > In order to configure the units, we would need a way to make the
; u" b- `, u3 j& x% D# q, g > settings. This would preferably be from a computer terminal so that
4 ^" @, d& S7 C> configurations can be saved or easily duplicated for production volumes.
7 |% [% G* E0 N/ C+ `& K- }> The units should be small and compact with shielding, and able to mount
5 H$ z) n9 P# m$ T. N8 x > to a printed circuit board with header connector.
8 k: I: h3 j5 [>
' y3 C* |* [. f6 Z4 V > At this time, we are interested in samples of a pair of modems that
( i1 U' _0 Z6 X2 R& `* o: V6 [> might be similar to this proposed system. We do not expect that you
9 o1 d( Y ?% ^5 N* d* H& Z> provide all of these specifications at this time. I can describe our
# C4 o: ~7 ]) u% z% b6 I5 Y, [2 r > immediate application needs in the next email if this project is of
1 p! y5 \# O, R7 q: Z: J. m7 Z) p> interest to you. Perhaps you can make the samples by those
T4 Y9 z6 K* W* _8 u4 S0 J> specifications. This will allow us to test your radios before we move
/ u8 Y) e7 V; L( y. ?2 F" ?) X7 e. R > forward. We are interested in your 900MHz radio to start.
9 {6 \$ O5 ?6 L' w6 F
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