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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

! y! X* R6 U# y! x客户要求如下,如果哪家工厂可以做,请和我联系
5 \: o& n, Y; Z0 \. ]8 k> The application that we have in mind is similar to others that we commonly
' |2 Y+ o) n* j( _8 X# S9 x> have. If we were to pay for FCC approval, we would want to use the modem
) j5 n" f7 W" p* Q' H. b$ N1 { v7 p> units in all similar applications under the same approval number.
. A, g7 a- o0 F+ D > Therefore, we would like to be able to configure the units to a specific
4 a+ O3 p% y" }, A3 {5 f% J > application. For the business that we do, this approach will yield more
( L6 y( ?- f3 x5 K* f1 ? > sales based on the same product and approval. We are interested in the
" z* G7 S& q& H > following specifications:
. |: `0 W* q6 j& |* W: n" K >
, P4 a; N% O% u# L3 v* a> - 2 inputs at the Transmitter with three possibilities;
! G5 L, L* c0 O> 2 analog
. G; z; x. a$ r) q+ s> 2 digital
s# w4 K* e' H$ I > 1 analog and 1 digital
& a7 U8 k5 P% g8 L2 s# Z. p$ C( M>
- w+ T u& H5 `4 q > - 2 outputs at the Receiver with three possibilities to match inputs
5 n2 N3 z1 q" W# S/ H+ J>
3 D( c; G% c( ~" I! c > - Ability to configure/define analog Transmitter input ranges through
* P: V% D, z, t> simple programming method to correspond with full-range analog Receiver
" E" I/ V0 Z7 J* ?$ M# f, J1 O> outputs (0 - full voltage).
+ p4 k1 b; B4 v& H5 R% ^; G& t/ b >
( ]' E/ n9 B* y# F7 l> - Ability to configure and set sample rates for the inputs.
5 W! ?% y+ J7 T9 r+ ^8 f/ c>
& B f& @' T6 ]" {2 X+ m > - Digital output on Transmitter that turns on during the sampling period.
0 L! Z1 Q* a( j4 I3 w c$ j>
# e1 r/ @$ F m5 L> - Ability to configure a power saving Sleep Mode in the Transmitter by
. _1 `5 f% i# r' s; A) s& j > both software control and input hardware control.
6 b; j) J, u& r9 W2 j4 @ >
; }4 U) F3 S+ `, I' |> In order to configure the units, we would need a way to make the
/ j- z8 g d* U( @; r" N* w6 S# R' J A> settings. This would preferably be from a computer terminal so that
) y, |7 Q; T& g% E$ ~7 e > configurations can be saved or easily duplicated for production volumes.
2 y' ?' O0 L3 m! m$ w0 k, v8 [> The units should be small and compact with shielding, and able to mount
4 r7 p: @3 z8 |5 K7 D/ B9 I > to a printed circuit board with header connector.
4 t& n! U" K$ k* X9 e>
7 ]& e* w0 O8 `8 W > At this time, we are interested in samples of a pair of modems that
+ \* T" y( ^% P7 ]* g> might be similar to this proposed system. We do not expect that you
$ v5 [& v, U' A3 @! J > provide all of these specifications at this time. I can describe our
8 V7 b, |. D9 ^) p E > immediate application needs in the next email if this project is of
7 O9 {# I6 C3 u1 }1 | > interest to you. Perhaps you can make the samples by those
( @6 c6 j: x7 E% y4 y% j> specifications. This will allow us to test your radios before we move
. m" K& \3 c$ L> forward. We are interested in your 900MHz radio to start.
8 d2 b. V) U+ X( w8 x% ?( z
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