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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

4 f5 d R$ P& ?5 R0 L( y* E0 R客户要求如下,如果哪家工厂可以做,请和我联系
3 {7 J& P4 M' f' D> The application that we have in mind is similar to others that we commonly
( w) {, Q( f8 V2 ~$ s > have. If we were to pay for FCC approval, we would want to use the modem
4 Z+ F: J9 {, D, k1 h > units in all similar applications under the same approval number.
) R# ]3 L; @+ p7 x0 d$ q) x> Therefore, we would like to be able to configure the units to a specific
; Q8 n3 [$ X# ~4 h" ?) ]> application. For the business that we do, this approach will yield more
5 x6 O0 F& }4 B: _/ S% C# H+ b2 b> sales based on the same product and approval. We are interested in the
- N- f% B+ ^: @* Z> following specifications:
' L& k/ R3 r! o8 f. v/ t$ q>
' R) B& h4 Y: j/ q8 r: A) z> - 2 inputs at the Transmitter with three possibilities;
+ Q' J5 q" A- H6 h7 z: ], j) d3 U' y8 C > 2 analog
9 U1 J* a* f7 T. k6 ~' _8 F. ^, J> 2 digital
' K$ e% Y" h" ~> 1 analog and 1 digital
% M2 }+ V# q& a, l, j3 l>
- b" I9 q2 g9 \6 Q& m5 D> - 2 outputs at the Receiver with three possibilities to match inputs
) M' D8 {/ z/ m8 k9 ?- M>
* f+ P. o( x' w+ u# x, w' q > - Ability to configure/define analog Transmitter input ranges through
$ N, ?* ^' m! t1 @0 h> simple programming method to correspond with full-range analog Receiver
5 E7 i9 n9 c" U3 W8 L > outputs (0 - full voltage).
i- _+ Q4 z0 N: O. u>
5 Z+ r! o: `: y0 t2 K) W > - Ability to configure and set sample rates for the inputs.
) n) W6 l8 N+ K, A s4 V' @2 D >
/ A# W- s" U4 L% r. q1 v> - Digital output on Transmitter that turns on during the sampling period.
& F5 k/ q/ c! M$ ?' P( @, e>
5 E. r; G1 E: e2 c6 z > - Ability to configure a power saving Sleep Mode in the Transmitter by
6 c$ X2 w1 k7 ?4 J > both software control and input hardware control.
- b9 n& W% E- D. j* e5 L$ P, y >
; V! _1 g! j6 d3 j, e > In order to configure the units, we would need a way to make the
4 \6 t9 Y7 _+ S7 A5 C> settings. This would preferably be from a computer terminal so that
" _+ S+ G9 Q4 W) K) x; W ?: r> configurations can be saved or easily duplicated for production volumes.
; f9 R. j# c3 c0 V: V > The units should be small and compact with shielding, and able to mount
4 @3 X$ I O1 |( c0 l% c' ? > to a printed circuit board with header connector.
% |5 m; p1 r1 ]' [, r>
+ A& r1 O. k. U. `$ S" b > At this time, we are interested in samples of a pair of modems that
* F1 T* _" M A7 h > might be similar to this proposed system. We do not expect that you
! e7 I# D( A9 K8 {4 x2 I Y > provide all of these specifications at this time. I can describe our
1 h1 M* A9 Z* \: f> immediate application needs in the next email if this project is of
1 r/ H" H$ d$ j4 o! @8 K9 d9 _> interest to you. Perhaps you can make the samples by those
U/ ~* O5 }$ F> specifications. This will allow us to test your radios before we move
: F% a" m2 y9 D! B > forward. We are interested in your 900MHz radio to start.
8 y5 D+ E: {) @* L+ C1 {! f
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