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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

: ?2 ?* c/ h& y& I) { 客户要求如下,如果哪家工厂可以做,请和我联系
% w8 l% B+ X6 m8 F0 A> The application that we have in mind is similar to others that we commonly
: @& K# m: R2 ^' } > have. If we were to pay for FCC approval, we would want to use the modem
# b. x4 E# n% F/ O8 m/ d# P2 D1 _> units in all similar applications under the same approval number.
& C0 ?. g1 z: ^2 q1 ^. Z" [& s> Therefore, we would like to be able to configure the units to a specific
0 T8 P3 P( N) E) h1 M+ p! T> application. For the business that we do, this approach will yield more
) V5 x8 H7 x: a* t) U, f > sales based on the same product and approval. We are interested in the
% q9 N5 j' b1 B' B7 i > following specifications:
" U3 s' w- i$ d8 v* r! ] >
- g2 e. I8 s3 ^' q- b+ r0 V" j > - 2 inputs at the Transmitter with three possibilities;
! o9 y/ T+ w. X1 L# ~# @2 Y > 2 analog
; B6 V- H: L8 ^> 2 digital
3 e$ _/ Z: F8 L* Q > 1 analog and 1 digital
# L# z6 M) X3 i >
3 Q* {& l2 a j+ t( Q5 d N1 ?# I+ Y> - 2 outputs at the Receiver with three possibilities to match inputs
! E: [9 \2 L' x6 L: i* T3 u5 | >
' Z, L% |$ a! m. i- {9 O J) U > - Ability to configure/define analog Transmitter input ranges through
* _( p1 G. e% j3 w3 K, M" X > simple programming method to correspond with full-range analog Receiver
& I3 t- ~- ` u* D, s$ Z; J0 [ > outputs (0 - full voltage).
& E2 v1 z8 j1 A9 ]) V4 r0 A0 q/ x>
& O' m- d. N: U i > - Ability to configure and set sample rates for the inputs.
0 R$ z; k2 `" P, [>
$ X: h) I. [& t: l > - Digital output on Transmitter that turns on during the sampling period.
/ t# a. {1 s4 T; j7 _1 |( @5 R>
3 ]- Z+ X" A" g: y: e; L( J > - Ability to configure a power saving Sleep Mode in the Transmitter by
R( i; _- \8 l, \5 o+ N. ~> both software control and input hardware control.
3 v% ?. y0 U, X1 q+ U. v/ h>
$ }- i; p2 x/ C5 G6 S( _6 f> In order to configure the units, we would need a way to make the
! [( Q* u, N, f+ i# k* v: ^> settings. This would preferably be from a computer terminal so that
) V7 ~4 d4 L: d > configurations can be saved or easily duplicated for production volumes.
, w, z7 O3 |5 i# s) n. Y1 B- U> The units should be small and compact with shielding, and able to mount
- b) \& n, O, G, f( c0 s> to a printed circuit board with header connector.
3 S/ [, s2 ]- `; s. \0 w >
+ f+ t) r1 J6 R/ \0 k) a> At this time, we are interested in samples of a pair of modems that
/ M& h# g5 u! n5 a r. e > might be similar to this proposed system. We do not expect that you
" z P0 Y0 K7 i4 y& }# g$ p! d> provide all of these specifications at this time. I can describe our
& ]7 Q4 |/ s/ W; R! e8 R8 P1 D > immediate application needs in the next email if this project is of
0 H+ L# @; i7 S) M+ U> interest to you. Perhaps you can make the samples by those
* [# @8 [1 {: Z# q4 ^4 j4 N4 } > specifications. This will allow us to test your radios before we move
8 z8 f2 p% b" X; H0 B- u* M) z> forward. We are interested in your 900MHz radio to start.
; r4 L( Z) V- E' K
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