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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

; i3 k* |" Z2 m" `" x 客户要求如下,如果哪家工厂可以做,请和我联系
# w& S6 q8 b. U8 x> The application that we have in mind is similar to others that we commonly
" H- h* _' W a> have. If we were to pay for FCC approval, we would want to use the modem
! C5 F! Q' m9 N! K* n$ C6 o > units in all similar applications under the same approval number.
2 @0 |0 y! ?5 j' h, G4 r > Therefore, we would like to be able to configure the units to a specific
% S2 ~" x1 `/ E) M( O> application. For the business that we do, this approach will yield more
+ i8 c5 E+ [$ Y1 S( V. x > sales based on the same product and approval. We are interested in the
- r5 v* H, ] }+ i: [7 d > following specifications:
2 T) k, {8 G7 o0 w9 A >
. [( L# ^9 d* e) J1 V. |) z" y& ~ > - 2 inputs at the Transmitter with three possibilities;
: Z4 i1 d% G8 q9 b" v( B > 2 analog
3 q- s" k8 H4 b7 n! q- O: N1 c; G3 n > 2 digital
: f3 ~4 ~! v* S' H- t8 c& F' d& O3 `: ? > 1 analog and 1 digital
5 U9 n$ C6 O. v+ N! Z >
+ Z2 Y) I$ P! f# A$ N> - 2 outputs at the Receiver with three possibilities to match inputs
. ^' X: O' |* Z6 b U >
' ?) g# g: n" p > - Ability to configure/define analog Transmitter input ranges through
$ A4 K4 v$ D0 L$ ^/ a7 l7 A' Q: s > simple programming method to correspond with full-range analog Receiver
; F: e: p; a x> outputs (0 - full voltage).
/ ~+ ]+ q5 ] G/ q0 n1 m>
/ c7 _# o1 S0 s i F( d S> - Ability to configure and set sample rates for the inputs.
4 h0 N1 t5 g: `% |>
3 T8 z! Q9 ]% V > - Digital output on Transmitter that turns on during the sampling period.
! z9 t6 n- R+ n9 y$ n >
* k! Q0 g& T8 S' [9 L > - Ability to configure a power saving Sleep Mode in the Transmitter by
: [ E3 O0 C' j% h5 X > both software control and input hardware control.
0 {' ^) u2 D' a* I >
/ N' j/ m) c" I2 x# S> In order to configure the units, we would need a way to make the
' _- \& O( o+ S6 l' B/ l3 V> settings. This would preferably be from a computer terminal so that
& ^+ D* Y: g8 W1 D6 }, e. v# S* m > configurations can be saved or easily duplicated for production volumes.
$ `% p" U, z4 q& o2 V> The units should be small and compact with shielding, and able to mount
: ~! ]* E6 V" {7 }; l > to a printed circuit board with header connector.
# w" W% W: W% F* G% \ ]5 T >
( v- t5 \' z) U8 K- ^1 u) u > At this time, we are interested in samples of a pair of modems that
3 L1 e2 V5 {0 t7 j> might be similar to this proposed system. We do not expect that you
$ c: w: |4 q* s" A1 ?5 ^> provide all of these specifications at this time. I can describe our
8 I( ^7 H3 ^# i% }5 L* |> immediate application needs in the next email if this project is of
& M& d1 E# p, h6 T) U% V1 S > interest to you. Perhaps you can make the samples by those
0 T5 @) w4 Y, R > specifications. This will allow us to test your radios before we move
( p; m0 Q! _5 {- M > forward. We are interested in your 900MHz radio to start.
5 w. Q$ o& \$ Y, l+ h% n
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