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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 [2 x0 E* W4 n3 i! D$ i; _; [ 客户要求如下,如果哪家工厂可以做,请和我联系
. [( Y4 y7 R, @& V > The application that we have in mind is similar to others that we commonly
( _% E8 R/ d" q6 T9 e3 Z( H> have. If we were to pay for FCC approval, we would want to use the modem
2 O" @( i: z1 s2 z2 ~* I$ u! j/ [ > units in all similar applications under the same approval number.
3 p' @0 |0 w$ E4 ]* ^> Therefore, we would like to be able to configure the units to a specific
& z+ V0 {& T+ y& _. k# }. P, l( F> application. For the business that we do, this approach will yield more
% T: w' \0 m& t# I- N: W) B> sales based on the same product and approval. We are interested in the
( f# }2 u7 G' C7 n" T > following specifications:
, j0 K0 [7 [% w0 b, G >
2 f* W8 \/ \: y b> - 2 inputs at the Transmitter with three possibilities;
& s- i ?' Y7 `$ D7 V' Y > 2 analog
, K2 V5 Q$ m/ Y# P- ?5 S > 2 digital
9 d" @$ w5 e/ `> 1 analog and 1 digital
$ E+ P5 k/ b" A- l$ |4 }>
. a/ V, C, G \$ e' A3 H1 s> - 2 outputs at the Receiver with three possibilities to match inputs
/ Y1 @2 w. }# E1 f >
9 C& j; w* ~: t; n4 t> - Ability to configure/define analog Transmitter input ranges through
9 T- n1 C+ `' }1 t% v9 w> simple programming method to correspond with full-range analog Receiver
& p0 u! g& X8 E. B4 J: _2 O: a > outputs (0 - full voltage).
3 |6 S( ^/ O$ v# @" Y >
( F d. R/ v# ^# M) h > - Ability to configure and set sample rates for the inputs.
$ J r' n. J- ?: h >
- c; Q R" A: i8 b. r9 _ > - Digital output on Transmitter that turns on during the sampling period.
3 ]7 o) L0 q r. x7 O >
" F9 L# a' V% G2 z* s$ K/ q' `> - Ability to configure a power saving Sleep Mode in the Transmitter by
' }1 l/ A5 {2 K; Y > both software control and input hardware control.
! |9 h* S- _1 b& F>
& I z( z: k& J7 E8 h& b2 d$ R$ l > In order to configure the units, we would need a way to make the
8 R( P5 p: c U4 |+ `- j6 o > settings. This would preferably be from a computer terminal so that
% U0 C8 h, K( R4 }> configurations can be saved or easily duplicated for production volumes.
$ t6 ?/ t$ d4 E) t8 t> The units should be small and compact with shielding, and able to mount
! G3 ^. W5 `( Q( G" T > to a printed circuit board with header connector.
" i/ e& m# a( e2 r/ E5 C: s, x>
6 W7 d7 ]3 a- F, a- N3 Z> At this time, we are interested in samples of a pair of modems that
0 \5 ^! `4 K+ |* i" L> might be similar to this proposed system. We do not expect that you
& r2 V, u& o% E- L, w, ?( w > provide all of these specifications at this time. I can describe our
6 x# f( J6 b+ Y> immediate application needs in the next email if this project is of
" n# B; |1 E- G: p4 ] > interest to you. Perhaps you can make the samples by those
$ y/ s% g, Q& m: o3 k# @5 B+ h> specifications. This will allow us to test your radios before we move
6 ?( N0 K& r+ u$ j+ N( w> forward. We are interested in your 900MHz radio to start.
9 `1 k! X( a- h/ h( G
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