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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

# d$ I0 r/ m4 K5 r, I客户要求如下,如果哪家工厂可以做,请和我联系
) Y) t" b0 |& `+ D. T > The application that we have in mind is similar to others that we commonly
: F/ f$ x1 W; ~/ s3 n > have. If we were to pay for FCC approval, we would want to use the modem
5 \# h* V; b" m6 U# R> units in all similar applications under the same approval number.
/ p# K: y9 r: W0 m > Therefore, we would like to be able to configure the units to a specific
1 l. W8 F" L( W/ C) n9 C > application. For the business that we do, this approach will yield more
% G# ^+ ?# k! N3 \' @9 x& u+ s > sales based on the same product and approval. We are interested in the
6 t: j" G; `8 S, h: O0 t2 N> following specifications:
# T6 c. \. P! V* K) V >
2 M# _8 `' i; \ ] > - 2 inputs at the Transmitter with three possibilities;
7 M* C' V$ u: S > 2 analog
[$ I- N/ A; O> 2 digital
7 O, Y8 c9 g6 m. a# T> 1 analog and 1 digital
8 j9 q- x; m- }* R >
* H% k/ q9 g) T8 i > - 2 outputs at the Receiver with three possibilities to match inputs
* u' K; r7 D3 q& ~3 F4 X >
+ n3 E% H. |; X5 W > - Ability to configure/define analog Transmitter input ranges through
( b2 j$ j0 f& e- A* Q( H> simple programming method to correspond with full-range analog Receiver
/ Z* X' D: X5 Z' Z5 b% v > outputs (0 - full voltage).
$ n/ r% S0 M9 |1 g6 | o/ H1 E+ Z>
: L# `$ E5 y, n> - Ability to configure and set sample rates for the inputs.
( ^. t& Y* l) f' T6 h! p/ } >
( G6 n: `$ {" [# e" b> - Digital output on Transmitter that turns on during the sampling period.
1 v$ V! L5 R' ?; E/ b0 L>
* ]; R/ v, e( l9 e4 n6 y8 I > - Ability to configure a power saving Sleep Mode in the Transmitter by
5 |; \+ Z; e7 s7 {! ]> both software control and input hardware control.
1 a1 I# q$ Y- d$ d" c% E >
3 r) y& f' Y, g( @- [ > In order to configure the units, we would need a way to make the
/ O" j5 B9 g7 q! T( D) j% f > settings. This would preferably be from a computer terminal so that
+ a& F) f, T& B1 e8 D9 |8 e- g& h > configurations can be saved or easily duplicated for production volumes.
( m' d: k- g6 x> The units should be small and compact with shielding, and able to mount
! P$ P, ]+ E L6 u9 \% j) i> to a printed circuit board with header connector.
( T) o0 R3 M& ]; d>
* e2 e4 U7 O' N( _. H! l > At this time, we are interested in samples of a pair of modems that
5 T ^7 ]) E1 G > might be similar to this proposed system. We do not expect that you
% Y$ q% V" d0 p2 M1 m, D > provide all of these specifications at this time. I can describe our
. }% X/ F8 [# ]9 b( @) n> immediate application needs in the next email if this project is of
" f- v9 h6 y7 x > interest to you. Perhaps you can make the samples by those
# ^8 t l$ u4 k" h% Z2 ^) z5 q > specifications. This will allow us to test your radios before we move
, y. z2 W9 [+ E% U- a > forward. We are interested in your 900MHz radio to start.
, {# N; ^1 m1 `
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