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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

" T" g9 @$ C$ E1 X- s. F 客户要求如下,如果哪家工厂可以做,请和我联系
" ]5 p; ~9 r# [ S7 q > The application that we have in mind is similar to others that we commonly
. n6 L( c3 U3 ^2 E6 ^ > have. If we were to pay for FCC approval, we would want to use the modem
& M% |4 H" e! n$ `; A > units in all similar applications under the same approval number.
# n6 k" l; X- w6 @3 r: ^> Therefore, we would like to be able to configure the units to a specific
+ r. C2 E2 V: F, x, X, C: q# u& t9 b > application. For the business that we do, this approach will yield more
7 v+ O4 R: t W9 B8 M- Z& l- H> sales based on the same product and approval. We are interested in the
; x! P( {9 N8 Y! H( o> following specifications:
+ w- N2 j2 L& R z. T >
& F3 u/ D% q3 q6 \4 k9 L8 k! v& U1 l) p> - 2 inputs at the Transmitter with three possibilities;
6 X9 z( O. ^: d/ q > 2 analog
9 a i/ K: b/ {. O+ e6 q: {( w > 2 digital
1 u3 \: H; m9 U" p, }> 1 analog and 1 digital
4 P* ?9 z j8 A8 q8 V>
' E' Z! \" z9 u! z% ^7 e) Y > - 2 outputs at the Receiver with three possibilities to match inputs
! Q3 P, ?. q. [; w/ @/ d2 [ >
2 s0 w. I b _9 d' R4 Z% l5 P > - Ability to configure/define analog Transmitter input ranges through
1 ~) i1 n- A8 U; x/ h6 T6 q0 P> simple programming method to correspond with full-range analog Receiver
% Z5 ]$ J* G! U( c1 ^" x7 s> outputs (0 - full voltage).
* |) B+ y4 {' Y >
* L( ~4 H1 u' ^8 w > - Ability to configure and set sample rates for the inputs.
0 A* A4 v3 x5 P1 w0 G. O4 e" G >
4 L' i: p1 |1 s > - Digital output on Transmitter that turns on during the sampling period.
0 ~) P: `- @! C/ D( } >
/ B; t8 n; b& d: N/ }* L0 t> - Ability to configure a power saving Sleep Mode in the Transmitter by
$ A5 G1 o& U# k/ n1 a/ ]7 s9 [> both software control and input hardware control.
' e' n8 F% x0 Q: S: X$ h >
: S3 G6 o; Q( e > In order to configure the units, we would need a way to make the
) ?2 ~4 ]9 ~5 |! U5 S/ ?4 @> settings. This would preferably be from a computer terminal so that
4 E a3 Z2 R4 v> configurations can be saved or easily duplicated for production volumes.
& p* P2 U G5 |0 o, C4 {> The units should be small and compact with shielding, and able to mount
. L7 P7 i5 W* ]( v5 E F8 G> to a printed circuit board with header connector.
0 J8 i# t' P, W>
, D5 K. U5 m: C> At this time, we are interested in samples of a pair of modems that
* J |" t4 A; J0 ] > might be similar to this proposed system. We do not expect that you
/ _' F: d/ m( Y' O* k& F' w1 B1 j > provide all of these specifications at this time. I can describe our
9 @2 G; ]& T$ V0 N > immediate application needs in the next email if this project is of
s7 Y' `4 m+ x! K* m; J> interest to you. Perhaps you can make the samples by those
6 k2 u9 n: G. v J8 [) B8 N > specifications. This will allow us to test your radios before we move
3 A0 X6 q0 w+ \5 m > forward. We are interested in your 900MHz radio to start.
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