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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

* K8 b0 M* X7 h1 Z' L. ?% o 客户要求如下,如果哪家工厂可以做,请和我联系
/ z- w1 p! G% `. p$ {3 R w > The application that we have in mind is similar to others that we commonly
7 Y Q4 j+ g& a* t1 z1 a! z> have. If we were to pay for FCC approval, we would want to use the modem
' ]* l4 K2 l. K, ^/ g# U* E3 x> units in all similar applications under the same approval number.
0 Z" O2 g$ {6 W7 }7 ? F> Therefore, we would like to be able to configure the units to a specific
' i; h# }- S+ F4 j$ J& F> application. For the business that we do, this approach will yield more
6 R) o: |7 w u/ w > sales based on the same product and approval. We are interested in the
" ~! b8 |$ P- Y( ]3 O. {) _ > following specifications:
1 q$ B2 p4 f! h: N' y! a/ J) k# |, g7 ? >
8 j+ ?. n2 c8 X7 ?$ U1 q# ~> - 2 inputs at the Transmitter with three possibilities;
( h) C4 l% I& \3 x( p' l> 2 analog
% V% R' ~& k' K/ g > 2 digital
( W! f: k2 M. w9 j9 U> 1 analog and 1 digital
/ L( s2 ?; B9 w/ q( U>
) x7 v3 c" H& l> - 2 outputs at the Receiver with three possibilities to match inputs
* d; _2 z1 E2 [3 _ r3 j& p >
& k) ?' U1 U, g" T* p> - Ability to configure/define analog Transmitter input ranges through
1 D/ I Q; u+ i) w L* j0 S > simple programming method to correspond with full-range analog Receiver
7 ?/ `7 N5 M/ \) o1 o> outputs (0 - full voltage).
W' y9 v2 w5 e. M) h/ q>
$ T* P0 t X2 u. [> - Ability to configure and set sample rates for the inputs.
1 `2 g1 O' ]! O: j( Z# I >
& @0 g$ u1 R4 z7 C( _> - Digital output on Transmitter that turns on during the sampling period.
/ i2 N$ E/ \' m) I( A# Y>
' X# z7 ^, H" V/ C> - Ability to configure a power saving Sleep Mode in the Transmitter by
% I& d6 u( Z A- f* Y" N > both software control and input hardware control.
! P4 `9 E6 T! o" R& U >
1 \: X9 z$ q, j! s- s( k > In order to configure the units, we would need a way to make the
% s, `7 _3 U% B& ~: o > settings. This would preferably be from a computer terminal so that
! d2 j5 s* }' b+ h: l > configurations can be saved or easily duplicated for production volumes.
9 [0 \5 k$ }6 {9 M > The units should be small and compact with shielding, and able to mount
& b. l: L1 w2 t. n > to a printed circuit board with header connector.
0 c* l, m4 X% t- ~; s>
8 A/ G! Q& P- N# J3 i3 U> At this time, we are interested in samples of a pair of modems that
* k* @6 J9 t& A s% i: ?> might be similar to this proposed system. We do not expect that you
, A2 Z, ~( ~( |3 P+ F> provide all of these specifications at this time. I can describe our
8 y( d0 D ^* f8 _ > immediate application needs in the next email if this project is of
t7 D9 F+ j; U& f> interest to you. Perhaps you can make the samples by those
% B3 L. F- C8 a0 ^& D! Q2 ~0 |> specifications. This will allow us to test your radios before we move
) [1 o5 k& q a, ^0 R! I S> forward. We are interested in your 900MHz radio to start.
# s% ~$ S' N7 e+ P- Q, U; } Y
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