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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

! ]1 y% i, V3 X S1 h2 ?. Y6 i 客户要求如下,如果哪家工厂可以做,请和我联系
' i9 ]9 B+ u! {0 ^ > The application that we have in mind is similar to others that we commonly
! R8 g8 X, s9 q/ T) D7 v" A- |> have. If we were to pay for FCC approval, we would want to use the modem
/ k: r" c) O l' i4 T: L: C. ] > units in all similar applications under the same approval number.
6 e7 E7 E8 f& d: c% f > Therefore, we would like to be able to configure the units to a specific
- M) f. G' P% q( J Q# y/ \> application. For the business that we do, this approach will yield more
# }$ Q* ~! i9 ^8 |> sales based on the same product and approval. We are interested in the
% d% b0 n! }4 r, e> following specifications:
/ f' ?) V7 M, z+ D& q( } >
: ^) ]/ I2 q* `- m: a> - 2 inputs at the Transmitter with three possibilities;
0 t* l8 b1 q. _$ Y5 x4 r0 M, N; R > 2 analog
9 r7 Z n8 V' p" {/ z1 ~ > 2 digital
$ ]" f/ a! I+ z3 @> 1 analog and 1 digital
9 |- ]# W+ V( T( u+ t& z$ q >
' M ?& h' H& c' [> - 2 outputs at the Receiver with three possibilities to match inputs
% `- R# [2 a2 ^6 g) |>
: u8 |% @0 m; Z > - Ability to configure/define analog Transmitter input ranges through
- J0 o$ c* F' ^% ~$ K5 p8 J > simple programming method to correspond with full-range analog Receiver
: R1 w! Q' f7 \3 ]0 I; y L' p > outputs (0 - full voltage).
5 C s! a5 ^: P4 o+ {3 e >
' D2 A" c7 r0 q% C+ b: f > - Ability to configure and set sample rates for the inputs.
- s$ T- W5 S0 n$ ]* Z; K2 t >
* P& o$ Z: Z0 B > - Digital output on Transmitter that turns on during the sampling period.
$ T; V1 h* U: y, B ^ y3 M5 Z>
+ N8 T0 s: M9 G: u4 m; B> - Ability to configure a power saving Sleep Mode in the Transmitter by
A1 D) c' k- d# J7 Y6 J! M1 ~% F > both software control and input hardware control.
4 \+ e F. E9 F+ G>
# s6 @. }7 l3 _" K8 n$ n9 g" ^> In order to configure the units, we would need a way to make the
/ e+ i6 ~: i: \, i' U! _4 K+ L; V > settings. This would preferably be from a computer terminal so that
- [' K/ A! |7 [" k > configurations can be saved or easily duplicated for production volumes.
$ {( A `) p( Q0 B > The units should be small and compact with shielding, and able to mount
. Y" f0 Q6 ]" ]> to a printed circuit board with header connector.
/ G0 L/ e9 l- u/ r >
/ E) g4 J6 x! L1 \4 {$ D > At this time, we are interested in samples of a pair of modems that
8 t3 f7 i: k3 i- _% ^> might be similar to this proposed system. We do not expect that you
8 q% [% \+ t, n> provide all of these specifications at this time. I can describe our
# h7 n! y- F7 x+ P' N) b> immediate application needs in the next email if this project is of
B. H8 c9 |0 Z( O% F" q> interest to you. Perhaps you can make the samples by those
% S1 H) v' c: p- @# `% h: q& p> specifications. This will allow us to test your radios before we move
, h' v6 H: f% v > forward. We are interested in your 900MHz radio to start.
# K" Q0 S0 |. C# l5 q' D
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