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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

# b, @4 ? ` f客户要求如下,如果哪家工厂可以做,请和我联系
! J& p* m$ f& x7 j > The application that we have in mind is similar to others that we commonly
& {0 A* k/ a ~1 _. Q3 f > have. If we were to pay for FCC approval, we would want to use the modem
2 w4 P+ p& r+ P/ \% J% n3 [+ I5 M3 w z > units in all similar applications under the same approval number.
* L& @6 s( {; B9 ?' _9 z; ~ > Therefore, we would like to be able to configure the units to a specific
5 h+ R h7 x6 o0 |% q5 ~. Y> application. For the business that we do, this approach will yield more
5 ~4 o7 f- D S K+ W, S > sales based on the same product and approval. We are interested in the
! T- C9 a. U4 E4 z# | > following specifications:
# ~# }% x: S( j: h" ~& i6 W >
$ w) z# j5 Z& O1 Y8 m$ {* O > - 2 inputs at the Transmitter with three possibilities;
$ ~( f# Q9 ]$ ]$ W+ d> 2 analog
$ f8 W+ E" R. G% d > 2 digital
4 Q4 O/ h, k8 C > 1 analog and 1 digital
; e7 m8 |# \2 d) T, T>
* i- }0 D$ @! ^, I: G > - 2 outputs at the Receiver with three possibilities to match inputs
+ m9 w8 {: u1 z, U3 ]/ l* O: z >
! G, A. ~# T" [6 Y. j% [6 F! V > - Ability to configure/define analog Transmitter input ranges through
6 D0 t6 x- _9 O8 }( M( Q4 k > simple programming method to correspond with full-range analog Receiver
' A% U I- g: O( |6 e > outputs (0 - full voltage).
3 `/ G3 w3 N, N9 w >
5 r1 u9 S3 c- j/ k/ N2 g> - Ability to configure and set sample rates for the inputs.
a# z& c& O4 i7 K; i8 e5 p& U1 F0 g >
# i' {# H* p7 B/ R% y) S > - Digital output on Transmitter that turns on during the sampling period.
" C' ?" I/ P7 \ >
3 V0 v3 L. l" n8 E7 H > - Ability to configure a power saving Sleep Mode in the Transmitter by
: \" c v: J2 p0 R> both software control and input hardware control.
' B! U! r" t3 u3 H >
# D" T% Q5 s% i& [ > In order to configure the units, we would need a way to make the
0 }5 n; M; }! x) n0 i+ D; T > settings. This would preferably be from a computer terminal so that
/ q: i+ O5 b" t$ `2 ]* q' P > configurations can be saved or easily duplicated for production volumes.
0 q8 D5 D& h; x9 R/ ]> The units should be small and compact with shielding, and able to mount
8 m! G6 ]7 `; T > to a printed circuit board with header connector.
7 V% o2 j6 i3 o% g2 t4 _ d$ ^: k>
. T; @7 Q `& A5 i > At this time, we are interested in samples of a pair of modems that
) i* E8 Z. x, f2 s. i* t8 j0 q> might be similar to this proposed system. We do not expect that you
6 m9 w" x' u3 z t' d+ g> provide all of these specifications at this time. I can describe our
$ _4 f" S: w' J, k> immediate application needs in the next email if this project is of
S2 |0 N! K; a> interest to you. Perhaps you can make the samples by those
P: i7 J3 k, n, n> specifications. This will allow us to test your radios before we move
{, z0 q3 \1 X0 P" ~9 Q! F > forward. We are interested in your 900MHz radio to start.
+ c* k W N# e2 H* N
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