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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

% p( r1 _: I) c% l 客户要求如下,如果哪家工厂可以做,请和我联系
( P- |% O8 b* v+ i( t, i > The application that we have in mind is similar to others that we commonly
, T; z+ y0 W" |0 ] > have. If we were to pay for FCC approval, we would want to use the modem
0 n5 G' T" S* R) o# C) E> units in all similar applications under the same approval number.
2 f; M% Q8 E$ R3 g> Therefore, we would like to be able to configure the units to a specific
, h9 ]1 Y3 |: a9 t i> application. For the business that we do, this approach will yield more
% S9 Z- M; q% z; N7 R0 j> sales based on the same product and approval. We are interested in the
K- U e+ X3 P( S> following specifications:
5 Y4 l: L4 N2 B, S; J' g7 H3 a9 E>
: r* z% j& M+ O$ T M/ d" z1 V* [ > - 2 inputs at the Transmitter with three possibilities;
/ W) M8 A8 U" c3 T h, N* _ > 2 analog
! H. r k3 i( C > 2 digital
$ t9 e( P$ J% f$ G" d Z! e" C1 u) t> 1 analog and 1 digital
& E& u5 ^: w# C; q( ? >
5 K& C Q% C3 C# z: D > - 2 outputs at the Receiver with three possibilities to match inputs
+ Z9 N' x. J) J" l; e; `$ r >
" ], S1 S# m: a9 U > - Ability to configure/define analog Transmitter input ranges through
/ n+ W. G1 c* @6 c* h > simple programming method to correspond with full-range analog Receiver
7 y7 ~; \) i4 c* h! R# e4 D> outputs (0 - full voltage).
0 j. B& ?3 ?! u r8 v) P>
: C; z2 a! _" {2 W3 u> - Ability to configure and set sample rates for the inputs.
) Y. C. S; ~7 p& X>
0 l; \+ m& B2 j5 |8 R- F$ ]/ Z* e8 h > - Digital output on Transmitter that turns on during the sampling period.
/ ? F5 }6 E8 X6 g1 E* Q >
% D% R" ^2 I- S+ O' D0 i$ L> - Ability to configure a power saving Sleep Mode in the Transmitter by
$ H1 R5 B8 k3 i0 Z8 K; ~" } > both software control and input hardware control.
& D; b% w% t% I( f& a6 r >
7 `9 x! J$ L" s" w7 O3 {& n> In order to configure the units, we would need a way to make the
' Z P4 K% e& k > settings. This would preferably be from a computer terminal so that
# y% H, r5 x0 O# b( p; }: f5 `" r > configurations can be saved or easily duplicated for production volumes.
4 V& p& C9 e* G> The units should be small and compact with shielding, and able to mount
: S& _* \3 }; C3 ^6 R> to a printed circuit board with header connector.
; a5 L5 [, q+ J9 e>
+ x8 x2 ]8 H; ^4 O, R3 N8 K& _2 q > At this time, we are interested in samples of a pair of modems that
& i( g2 ]7 A1 g2 j" ~, C( y) s# h > might be similar to this proposed system. We do not expect that you
6 E: W% }5 z( x: [ > provide all of these specifications at this time. I can describe our
; u$ k$ a- _7 @) W& |9 h$ m > immediate application needs in the next email if this project is of
4 r* A+ {; u6 K; }9 E0 X> interest to you. Perhaps you can make the samples by those
' o, O; k6 T' X2 T& ~ > specifications. This will allow us to test your radios before we move
% j4 D5 C+ Y2 M/ b; u > forward. We are interested in your 900MHz radio to start.
( s2 e. d" i* a5 z& Y! ~6 \
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