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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

) D" w+ C1 ~2 f2 l0 m) o0 x* [: E客户要求如下,如果哪家工厂可以做,请和我联系
; B" \- r8 H$ i& n3 k> The application that we have in mind is similar to others that we commonly
7 ]! j4 ~. v& D8 O > have. If we were to pay for FCC approval, we would want to use the modem
+ T0 x- B. B! v! D5 f; E> units in all similar applications under the same approval number.
9 ?# I2 ^. N8 M- r( }0 k+ W* l7 v> Therefore, we would like to be able to configure the units to a specific
1 a" i ?( |( k& D5 T5 S+ L' h > application. For the business that we do, this approach will yield more
& I# r$ o5 m! Y4 K > sales based on the same product and approval. We are interested in the
6 d$ y- r4 W, R > following specifications:
5 f& Y @8 f) S* x" Q >
1 b. z+ g2 Q: c- ?/ I1 N > - 2 inputs at the Transmitter with three possibilities;
5 c& C, d: k! m > 2 analog
8 l% K, l- j0 T0 E0 p, Q> 2 digital
! ]* I; H- j$ m) a4 \> 1 analog and 1 digital
$ A# O: h9 j9 J( ~( C( [& P" X5 y) \ >
1 P7 V n& M2 Z/ y( |6 y/ k > - 2 outputs at the Receiver with three possibilities to match inputs
) q5 L% N& t% I& v0 T >
2 T2 M( M& m0 F! w9 Z > - Ability to configure/define analog Transmitter input ranges through
5 }# j' F7 y/ F5 Z$ s> simple programming method to correspond with full-range analog Receiver
! w2 X* h. f6 [) u: @0 t7 A$ L> outputs (0 - full voltage).
: b9 M% R; `/ q" ] >
& _; |1 S. k& m: T W8 _! r2 g > - Ability to configure and set sample rates for the inputs.
7 Z: f3 j1 z" |1 u5 q>
' D) X+ C& C4 ?, d1 [( V > - Digital output on Transmitter that turns on during the sampling period.
0 K- ]9 m- a) n& _2 Y >
, n# `; J2 [: v( E' p$ I> - Ability to configure a power saving Sleep Mode in the Transmitter by
& |+ i$ L) R3 [/ S; y> both software control and input hardware control.
6 O+ F4 J& g G; l4 O: J/ k>
6 H& |/ [+ e8 K* K8 O/ c; E> In order to configure the units, we would need a way to make the
/ ~ C. L3 @5 W: {8 K1 i3 G> settings. This would preferably be from a computer terminal so that
& ]5 W' E: E) C( j$ _ > configurations can be saved or easily duplicated for production volumes.
2 O5 t, z6 \$ ^: H7 E. P> The units should be small and compact with shielding, and able to mount
5 p& R( s: h1 ?# k" ~, ` _/ ~ > to a printed circuit board with header connector.
$ ` n- f" y5 d0 d>
; r# x; z7 T3 x, j > At this time, we are interested in samples of a pair of modems that
2 _1 |, \2 r+ V4 R7 d M > might be similar to this proposed system. We do not expect that you
5 v* l. \3 k* \ > provide all of these specifications at this time. I can describe our
$ G1 A, W5 q+ c> immediate application needs in the next email if this project is of
, B8 X& ?3 c) d/ [7 G> interest to you. Perhaps you can make the samples by those
2 L8 y9 e/ `, f9 \0 S> specifications. This will allow us to test your radios before we move
+ j: \8 D. }$ ^. Y6 N9 {9 f > forward. We are interested in your 900MHz radio to start.
8 k. q5 ]9 K! ?) H" p( [' ]
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