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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

9 |) N& v8 Y+ {5 R5 u客户要求如下,如果哪家工厂可以做,请和我联系
, D) {9 Z7 z$ h, G& i2 Q- W> The application that we have in mind is similar to others that we commonly
# p' h+ m% b3 s6 D/ z' O. G& y > have. If we were to pay for FCC approval, we would want to use the modem
& q- G0 h; r2 o/ H2 x > units in all similar applications under the same approval number.
% ~8 l, a5 q/ o+ H: x7 k> Therefore, we would like to be able to configure the units to a specific
& a6 M- V; i) s4 M" a# H7 X( Z > application. For the business that we do, this approach will yield more
- l- K. Q% p$ m' r" L4 @8 ^4 X! S > sales based on the same product and approval. We are interested in the
. z0 L/ ~1 `" e! s > following specifications:
' L6 g" D( i1 ?" K5 F. u >
9 z( t9 O; q% X5 e4 p > - 2 inputs at the Transmitter with three possibilities;
2 A- F. U4 @" o; k" R> 2 analog
( s0 K5 k: G. B4 ~& o> 2 digital
6 K7 D% r. h2 A0 e2 w! Z0 L> 1 analog and 1 digital
# z" ~8 p4 w: e9 ^5 f( H >
( ], u& n; M* b. @$ L> - 2 outputs at the Receiver with three possibilities to match inputs
9 I9 M! y; Y; I >
8 {. u5 M+ U/ Y$ E# k( A% A> - Ability to configure/define analog Transmitter input ranges through
M' X& T; e' E( D> simple programming method to correspond with full-range analog Receiver
0 v% v; n% m; y& p; k2 b% m > outputs (0 - full voltage).
6 t) b4 P, c$ j1 n4 G. u0 @9 F, K >
" s6 j$ b4 {' m" W > - Ability to configure and set sample rates for the inputs.
, ~2 x9 t& ^% M >
* G# ^1 E( J% D( a" T9 l> - Digital output on Transmitter that turns on during the sampling period.
6 O/ u) H* k4 |& F3 J >
8 }/ N1 z* Y7 `7 _: w4 q > - Ability to configure a power saving Sleep Mode in the Transmitter by
$ \) L/ j* Z/ s3 g > both software control and input hardware control.
$ F' p8 n5 d2 I' z" o4 D5 h& {>
, Y: O6 U" U9 K: j& ] > In order to configure the units, we would need a way to make the
* M7 s* O+ I* t1 g: s4 D> settings. This would preferably be from a computer terminal so that
# e' e, [! @: B/ Y) v9 ^- ~ > configurations can be saved or easily duplicated for production volumes.
1 {- e4 `! _4 g( m' D> The units should be small and compact with shielding, and able to mount
$ h# k1 [ b" |' ^& c> to a printed circuit board with header connector.
1 O" n) H/ {. l( W# s>
% v9 \* F; ?6 ]5 [- U p > At this time, we are interested in samples of a pair of modems that
8 d# w% c( h- |7 Z4 s1 C6 l> might be similar to this proposed system. We do not expect that you
. v& y* B p1 @4 X( k0 |4 e$ M > provide all of these specifications at this time. I can describe our
: N) e& C, W. r5 O: Z > immediate application needs in the next email if this project is of
8 E6 z: ]/ H% }. `4 p. t g> interest to you. Perhaps you can make the samples by those
$ @) a& \/ W- v > specifications. This will allow us to test your radios before we move
9 f8 Y2 `8 m% X* l! A9 a" q0 G: @( k> forward. We are interested in your 900MHz radio to start.
: N. J F+ `3 ]+ E, r
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