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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

- V/ Y0 F; K/ S, ]9 V9 d客户要求如下,如果哪家工厂可以做,请和我联系
- A: e9 F; @( ^7 s> The application that we have in mind is similar to others that we commonly
' D0 t& y; s0 f0 e6 |3 M. T> have. If we were to pay for FCC approval, we would want to use the modem
# p8 g! Z, }# N: Y4 d" z> units in all similar applications under the same approval number.
) X# H: d- Z, N& N- c0 F9 S> Therefore, we would like to be able to configure the units to a specific
. Y' D. }/ X, q( s+ \0 z+ |- G* r > application. For the business that we do, this approach will yield more
0 g4 G3 ^9 E! {, Q2 P3 P: j4 a* o > sales based on the same product and approval. We are interested in the
# C0 O6 ?! X) Z @5 N3 L( s, }5 q; @> following specifications:
. ?: u( F" u, t% E# `% H. W' B/ [ >
9 x1 r+ K3 ?1 g> - 2 inputs at the Transmitter with three possibilities;
: Q( f3 V7 V7 O. f# o9 T. ?, w > 2 analog
# Q1 p* P6 b7 ]7 x( F V" s > 2 digital
& U2 J6 w4 e4 e+ Q$ ]" W3 D. c > 1 analog and 1 digital
) v* z. J: H; A( y3 \" [>
- I* ?) B; O6 Z7 C; Y > - 2 outputs at the Receiver with three possibilities to match inputs
; L1 `! `5 |6 N% X( M>
( e! u( H+ ]* Y Z5 Q! i> - Ability to configure/define analog Transmitter input ranges through
. @0 ?! c3 N% K7 l5 I+ z( F> simple programming method to correspond with full-range analog Receiver
4 h0 e, M% X0 \, \' Z > outputs (0 - full voltage).
2 K5 h- |" ^6 x3 C6 O4 u& T >
c1 b, \, z) w* K- e7 g' P > - Ability to configure and set sample rates for the inputs.
4 t/ y& U3 V+ @2 p1 ]/ P" K5 s>
, B4 z" E' ]: K- b% T > - Digital output on Transmitter that turns on during the sampling period.
0 f% ^6 r* E( F' i5 X$ T e( ~ >
3 o5 T7 J7 e L- Y> - Ability to configure a power saving Sleep Mode in the Transmitter by
# e0 V# q4 j! |, q > both software control and input hardware control.
6 d7 \# j0 z1 O: C+ a >
& a3 t* S$ A$ H' h8 [" j6 V > In order to configure the units, we would need a way to make the
/ H, p; {& \8 Z > settings. This would preferably be from a computer terminal so that
5 e7 a8 L: s+ r4 m2 x5 z$ ~ > configurations can be saved or easily duplicated for production volumes.
6 R" a) C/ w/ C; I) p4 h: s" l> The units should be small and compact with shielding, and able to mount
' |! ^* u5 i5 R& K4 G > to a printed circuit board with header connector.
) i3 I$ a6 i' c$ h8 L>
/ q/ U3 S4 o4 @7 d% g! x. l> At this time, we are interested in samples of a pair of modems that
+ M* \1 t8 v/ ~5 r2 D9 h > might be similar to this proposed system. We do not expect that you
! i% a R! m& {2 o9 O& `/ W- m > provide all of these specifications at this time. I can describe our
) O. h9 x& i* u4 o+ `3 ^$ G' k* d > immediate application needs in the next email if this project is of
" J/ v8 W t, V, J8 U! h > interest to you. Perhaps you can make the samples by those
7 `. W" N0 ^' ?! ~> specifications. This will allow us to test your radios before we move
4 u' l# T* B. g0 x% _> forward. We are interested in your 900MHz radio to start.
: y* n; \' X2 Z) D: S! [. _
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