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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

" ?6 c! m Z, \# o& ?) c客户要求如下,如果哪家工厂可以做,请和我联系
+ |/ R3 ?7 b4 g7 L# I! k > The application that we have in mind is similar to others that we commonly
$ s6 M# R$ d+ q2 ?" X> have. If we were to pay for FCC approval, we would want to use the modem
0 N# R/ D- g* @3 V" } o > units in all similar applications under the same approval number.
1 \3 i& G/ n2 o6 p; O$ K! S4 r> Therefore, we would like to be able to configure the units to a specific
1 X q) ?& E3 G! S > application. For the business that we do, this approach will yield more
! O+ E8 C0 I( C& {% R0 K> sales based on the same product and approval. We are interested in the
' i: I7 Y" `! x > following specifications:
: _7 R1 X4 j9 C: F& a: t* N >
& [( M3 G/ K) N1 I > - 2 inputs at the Transmitter with three possibilities;
' U( z* S4 i) W& R. E/ l > 2 analog
- J" d) K5 j$ |! c > 2 digital
( m3 x5 Z& B% v& h) Q$ }> 1 analog and 1 digital
0 S. F% S& y' W+ p+ x- }; r >
$ `1 C; Z! K6 @3 D$ O' ^% N. o > - 2 outputs at the Receiver with three possibilities to match inputs
& Y. s% i' |& B2 q" ^>
7 `2 o) m/ w! W# S+ @/ M; ^ > - Ability to configure/define analog Transmitter input ranges through
+ I: y5 t: u+ S, x3 w> simple programming method to correspond with full-range analog Receiver
8 g' n; D0 `4 { > outputs (0 - full voltage).
- p% O) ~( j# J- M>
) e5 k6 G6 v! s( d> - Ability to configure and set sample rates for the inputs.
- ?3 t6 z: j3 o>
: t4 l+ g# J, a3 o) e > - Digital output on Transmitter that turns on during the sampling period.
! Q9 d& r. f* y4 Z' b! ~$ c>
8 ~7 _! y, T& R# e3 V> - Ability to configure a power saving Sleep Mode in the Transmitter by
$ w. B' S f1 L- z> both software control and input hardware control.
( e+ L5 J$ m9 K, d. h7 M) T* a >
0 e3 f1 h* g6 I4 n& A5 p q5 \ > In order to configure the units, we would need a way to make the
0 y& W; \6 c2 N& m> settings. This would preferably be from a computer terminal so that
D, ] M* u z1 l$ q$ K > configurations can be saved or easily duplicated for production volumes.
0 ~* ]0 q2 Y7 R9 X> The units should be small and compact with shielding, and able to mount
2 i8 G# \) {" d! d> to a printed circuit board with header connector.
( i! p. _7 B/ `6 A( B>
6 z s5 x; {1 l( J: Y > At this time, we are interested in samples of a pair of modems that
, V7 z- A2 g* t% J3 c> might be similar to this proposed system. We do not expect that you
5 u4 E& v& Z' v> provide all of these specifications at this time. I can describe our
5 C/ B8 b# q! _7 P9 {> immediate application needs in the next email if this project is of
$ ^, f: s' t/ s6 Q; b* |3 { `% W > interest to you. Perhaps you can make the samples by those
, A2 W4 k% h+ k- h" L> specifications. This will allow us to test your radios before we move
8 y) A( F" F9 N9 ?- A5 C( H( x > forward. We are interested in your 900MHz radio to start.
$ b- U# c2 A- _! ]8 d
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