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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

8 d4 e6 S( A: D# M D- o, J7 y客户要求如下,如果哪家工厂可以做,请和我联系
2 f/ m3 @8 r7 M" ?2 Y> The application that we have in mind is similar to others that we commonly
2 P/ b/ O Z! J> have. If we were to pay for FCC approval, we would want to use the modem
& ~+ ~; h* ]5 O) @1 Y% n > units in all similar applications under the same approval number.
1 }( B3 \% D% m7 }, U# E > Therefore, we would like to be able to configure the units to a specific
( g$ @3 J) F. @; s7 k8 C> application. For the business that we do, this approach will yield more
. q2 i: i2 S7 O> sales based on the same product and approval. We are interested in the
) q* _* n/ g/ e( \( ]6 } > following specifications:
4 h# D3 d5 c9 _- F>
: R$ t& k. J* S, \5 [2 w5 m/ O. Z > - 2 inputs at the Transmitter with three possibilities;
/ n. H! Y# t% `+ P( {> 2 analog
5 Z. m9 h$ M U$ D > 2 digital
+ n4 h- j. I- Y2 {1 I! Y- @( Q" ] > 1 analog and 1 digital
' e! E" Y& X2 ] >
3 D0 f! j+ W- F1 \5 Y > - 2 outputs at the Receiver with three possibilities to match inputs
, N6 e4 R* A& L! X- W' { >
4 o; n) W6 Z) }> - Ability to configure/define analog Transmitter input ranges through
' k) z' A Y0 U' O$ S> simple programming method to correspond with full-range analog Receiver
" |# v7 f! m) Z' u7 g2 X> outputs (0 - full voltage).
, ]7 ^4 Q: |2 H$ m' ]>
! e6 Y2 _- K3 R: _4 f/ }# J: I# v> - Ability to configure and set sample rates for the inputs.
4 Z4 r9 g; }3 _* x% V6 P7 Z( a>
0 V1 [. @+ h/ G$ A> - Digital output on Transmitter that turns on during the sampling period.
3 U9 t/ z5 q+ }4 [ V. N% D >
# c6 M e* y1 t; x > - Ability to configure a power saving Sleep Mode in the Transmitter by
- X9 V! Q0 n3 U > both software control and input hardware control.
& [1 B- ~, f) i4 V3 S$ L >
: R9 V/ W1 r( f3 k: f1 s" {1 H> In order to configure the units, we would need a way to make the
1 q' R' E3 \. p+ }" |2 I> settings. This would preferably be from a computer terminal so that
6 P |$ T1 v- M0 K2 }7 | c > configurations can be saved or easily duplicated for production volumes.
* T; F; x5 c$ j0 m' b( |1 U$ p> The units should be small and compact with shielding, and able to mount
& \+ t% D' ]- U7 ^! @! M > to a printed circuit board with header connector.
- G8 j9 [+ w. A1 s0 Z' p( K>
, Y+ ^+ P6 u6 ~> At this time, we are interested in samples of a pair of modems that
- |) Z) y- o$ S* U& R > might be similar to this proposed system. We do not expect that you
8 t, u# f! O' R( }/ x$ s> provide all of these specifications at this time. I can describe our
- N/ E# f) j0 N > immediate application needs in the next email if this project is of
" l5 R" {5 V: X6 j: [> interest to you. Perhaps you can make the samples by those
- s* f: g4 |8 t> specifications. This will allow us to test your radios before we move
* P- x/ ^1 q; {# m4 K, n; ]- M5 t > forward. We are interested in your 900MHz radio to start.
0 ~7 [5 G2 r( P& }8 j) n/ N* i, a
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