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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

" H7 J# O. o# L7 W5 L9 h) f8 h 客户要求如下,如果哪家工厂可以做,请和我联系
. F- H+ V. w, N: G > The application that we have in mind is similar to others that we commonly
+ L, R% z3 |" }- M> have. If we were to pay for FCC approval, we would want to use the modem
5 H0 c. a6 B g. T% Q > units in all similar applications under the same approval number.
9 j+ ~5 P# n% R# y$ x5 ^ > Therefore, we would like to be able to configure the units to a specific
) G, G q! t7 c+ c& O% R > application. For the business that we do, this approach will yield more
- _/ o! p* A( s/ x7 ?5 ], x> sales based on the same product and approval. We are interested in the
2 n3 X5 m1 E/ o> following specifications:
{- h! Y( s: \+ T4 j4 n >
) v6 u' y s; J> - 2 inputs at the Transmitter with three possibilities;
A# P4 D' z$ o) g8 }! ]/ j6 F, |> 2 analog
% l2 I4 @4 R. ?6 Q7 I0 i> 2 digital
G3 m1 s% \: J > 1 analog and 1 digital
; W4 s7 s+ J( U >
) u5 Q$ x- t) ?& q g> - 2 outputs at the Receiver with three possibilities to match inputs
; ?" w. W& D- N>
4 F3 i$ E- R- g- r J7 M > - Ability to configure/define analog Transmitter input ranges through
+ T: c% R0 x3 n. L > simple programming method to correspond with full-range analog Receiver
9 }8 M- l3 @* u; b# S" \$ w> outputs (0 - full voltage).
6 |4 Z4 J; B& E& b>
8 z; B, H2 L3 j0 \' p* U> - Ability to configure and set sample rates for the inputs.
( \" J3 K% i2 ]0 t9 L2 s>
* I/ v; Y1 [2 _& ^> - Digital output on Transmitter that turns on during the sampling period.
9 T" h. [% m2 J t% F& _& X>
0 Y3 J7 a, L3 P: U: p4 K/ H> - Ability to configure a power saving Sleep Mode in the Transmitter by
) L6 w+ U; Z8 w) p9 C% G0 c, U4 j > both software control and input hardware control.
2 P2 c6 X. e$ h6 F1 f>
/ p0 Z: Z( d5 J2 B% H> In order to configure the units, we would need a way to make the
, K2 T0 m6 k+ R4 B > settings. This would preferably be from a computer terminal so that
& |% z0 c/ r$ \+ S > configurations can be saved or easily duplicated for production volumes.
3 M- ?. m9 O i/ X > The units should be small and compact with shielding, and able to mount
. ~" N' U+ g& p$ S. O > to a printed circuit board with header connector.
" c! W+ A+ `8 N8 Y, C>
7 r7 y% ~. n3 |6 e, P* i> At this time, we are interested in samples of a pair of modems that
! m9 x- Y; N7 y) \4 V/ k> might be similar to this proposed system. We do not expect that you
. J- M: X( x9 i1 h: g3 L4 Z9 d: C: W > provide all of these specifications at this time. I can describe our
( q: z4 e% A! V" `' A> immediate application needs in the next email if this project is of
$ w! Z# p/ }. ^( o* P > interest to you. Perhaps you can make the samples by those
. ~1 k, i! I- l) f> specifications. This will allow us to test your radios before we move
8 `6 P0 ]( o W9 }. g: n: W> forward. We are interested in your 900MHz radio to start.
/ r d) G7 J( e
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