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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

! h+ w- {9 F+ m客户要求如下,如果哪家工厂可以做,请和我联系
+ t, S6 [6 z( f* @> The application that we have in mind is similar to others that we commonly
( c' G, F' d$ |3 b> have. If we were to pay for FCC approval, we would want to use the modem
) T7 h9 q, q }1 l7 {> units in all similar applications under the same approval number.
G% S$ Q; l" d6 C> Therefore, we would like to be able to configure the units to a specific
8 n1 N( o) a8 t7 s! I5 [& ]( G# ~ > application. For the business that we do, this approach will yield more
* B0 [, H7 ^% }4 N4 S$ L, Y. s& K. g> sales based on the same product and approval. We are interested in the
" i& e% L8 G( O) ] > following specifications:
3 Z$ {; G3 N: D >
9 X* t; w+ u+ b% [> - 2 inputs at the Transmitter with three possibilities;
$ n$ Y+ i; a5 v- Z& ~> 2 analog
- ?5 E! \- t! u& d' q> 2 digital
& S& F1 T4 Z/ b% a7 j, ]5 Z> 1 analog and 1 digital
2 u; R- E+ C+ d& D8 K& \ >
2 O, j' M- ~8 G, R+ a" Y. Y& Z > - 2 outputs at the Receiver with three possibilities to match inputs
2 P) r+ B, K$ Y* K c >
( n. C1 L' \- |# J. T: y7 l5 ? > - Ability to configure/define analog Transmitter input ranges through
" O q; |3 {* u, _" r> simple programming method to correspond with full-range analog Receiver
6 N+ K$ v) ^5 N- a4 i> outputs (0 - full voltage).
9 u# Q) l( L9 H& _1 k/ ^# }>
{& ?+ D: L( i> - Ability to configure and set sample rates for the inputs.
7 N" W3 c/ b; K r1 T) O B7 l, e>
# ?% \9 ~* K" s > - Digital output on Transmitter that turns on during the sampling period.
9 T6 {( f2 n" ` >
! ^7 w0 n" C7 W1 I2 D5 d> - Ability to configure a power saving Sleep Mode in the Transmitter by
2 b5 a- O' C- ]* d3 A > both software control and input hardware control.
/ e- @. c2 ]! ~* n >
0 g0 I, T4 @) c, {3 z> In order to configure the units, we would need a way to make the
3 Z6 A- S( a' L/ V0 C& K( p) V> settings. This would preferably be from a computer terminal so that
: Q. H) k$ o& {% n( P9 p> configurations can be saved or easily duplicated for production volumes.
' o0 \; H9 ` i% c: b8 O/ p > The units should be small and compact with shielding, and able to mount
2 c# ]1 F: d5 l > to a printed circuit board with header connector.
, R+ }% w$ d2 P" j; R! G# z >
3 R( T5 D. G4 l5 A1 `> At this time, we are interested in samples of a pair of modems that
$ k' n a! u* a- v3 ?2 J > might be similar to this proposed system. We do not expect that you
- p( z6 `4 {5 H" r9 i> provide all of these specifications at this time. I can describe our
1 I8 I1 W9 H2 L( k3 J) X > immediate application needs in the next email if this project is of
O2 e2 w8 T5 R' ]" V2 x) o9 h' z3 K3 [ > interest to you. Perhaps you can make the samples by those
$ g# m1 R. H% P7 q6 V2 f) n > specifications. This will allow us to test your radios before we move
% i7 n& x, h* N! Q > forward. We are interested in your 900MHz radio to start.
1 I: A" ]9 @$ x3 X6 h2 ~4 R* O
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