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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

2 U% ?+ h/ f( R( R' Y d8 Y 客户要求如下,如果哪家工厂可以做,请和我联系
& u# v% e/ u/ p8 F. {# w > The application that we have in mind is similar to others that we commonly
; ^9 k; h9 C: m/ ]> have. If we were to pay for FCC approval, we would want to use the modem
+ O2 Y- u$ t+ g$ {' P6 H> units in all similar applications under the same approval number.
_1 @1 W0 r9 {; h5 z) z- V; F6 T > Therefore, we would like to be able to configure the units to a specific
* e% p3 n4 ^0 J* N> application. For the business that we do, this approach will yield more
; E5 z9 D2 L: j- l. u, E) B > sales based on the same product and approval. We are interested in the
C) |. M6 R2 C4 S) \ > following specifications:
7 E& O4 F4 d( q0 b>
2 v, d0 G- K h, F& h. @6 M* R7 X > - 2 inputs at the Transmitter with three possibilities;
) t6 W9 Q. W m- a- o7 @7 a7 T > 2 analog
0 a) @ L; b1 A; Q> 2 digital
# ~7 g* f/ K& h0 t/ U: A O> 1 analog and 1 digital
: |0 W( h* V' s" b+ L" b>
" U7 e9 ~7 m* h > - 2 outputs at the Receiver with three possibilities to match inputs
" H4 W$ L7 @/ g- ]) J>
" l t+ R. x8 h% f > - Ability to configure/define analog Transmitter input ranges through
5 w: R6 C& \0 R- S& c3 U > simple programming method to correspond with full-range analog Receiver
8 \- r% F# \) w3 ?> outputs (0 - full voltage).
! Q6 l8 E! S5 n7 y& ~+ a >
: _) o# y7 L7 a > - Ability to configure and set sample rates for the inputs.
}& k5 \. L/ u8 G9 q' m: N >
- l- Z6 \0 U* b> - Digital output on Transmitter that turns on during the sampling period.
: y' }1 n& G" k( n$ m# m, j1 ]- ]+ x >
5 j, E) d! q; ?) m6 m6 z X7 _6 _; V2 v: l> - Ability to configure a power saving Sleep Mode in the Transmitter by
3 |! j/ u( N' F0 Z. d$ V> both software control and input hardware control.
) ^5 Z& F( K# r) B>
2 a/ K, t. u; Y( ?. m4 n @+ d> In order to configure the units, we would need a way to make the
$ |# z8 [8 R) ]; g* m$ D( N# \ > settings. This would preferably be from a computer terminal so that
! F8 P2 k( Z. R6 Z! I7 w2 s2 o4 P. \* j > configurations can be saved or easily duplicated for production volumes.
% N/ }2 `. F0 Q0 m+ R1 g > The units should be small and compact with shielding, and able to mount
" e- p. w* u, P9 V9 _3 f5 R> to a printed circuit board with header connector.
A' g1 `+ V$ ^9 u9 H* G! w>
4 R3 q) m/ f" ?( D/ f+ b3 [ > At this time, we are interested in samples of a pair of modems that
) c3 |1 z! H/ p> might be similar to this proposed system. We do not expect that you
/ G L% L5 ~. X9 K4 u1 { > provide all of these specifications at this time. I can describe our
/ q5 @+ n7 g* F> immediate application needs in the next email if this project is of
/ _" B/ k0 D2 Y& m; h O > interest to you. Perhaps you can make the samples by those
# E& |# w; T( G+ E; |> specifications. This will allow us to test your radios before we move
$ {6 W* U' p8 _, J# _> forward. We are interested in your 900MHz radio to start.
O- Q4 f) o7 u5 U8 J
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