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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

! V9 M9 ?7 _6 |" n1 u" q- `( K 客户要求如下,如果哪家工厂可以做,请和我联系
, V: W7 w: c! [- o9 E6 U' P > The application that we have in mind is similar to others that we commonly
8 y+ O- k/ q1 r- l > have. If we were to pay for FCC approval, we would want to use the modem
- U" _6 b- h3 I' W# ~& A5 Q> units in all similar applications under the same approval number.
/ a1 M( i# G0 l > Therefore, we would like to be able to configure the units to a specific
' D+ y6 M c) C7 q > application. For the business that we do, this approach will yield more
- v/ S3 ?5 m' Q, y5 }> sales based on the same product and approval. We are interested in the
( z* e5 c0 |) [* Y > following specifications:
9 u; K/ X# t% R9 v% L6 l5 K& s5 _+ r >
, C- M; o% _4 z$ o. B> - 2 inputs at the Transmitter with three possibilities;
7 Z; V1 }# f" A" P8 E2 p, R+ K' \> 2 analog
- `" a+ b2 z' g, t > 2 digital
) I' F I6 Z* T" t > 1 analog and 1 digital
8 E+ p# P3 ], G. T) j* \& d>
- T' y2 a5 W- e6 x! g: D6 C> - 2 outputs at the Receiver with three possibilities to match inputs
2 [' ^9 c0 i' Y* j. @/ K >
& L: P* I8 G4 h* t5 n7 N > - Ability to configure/define analog Transmitter input ranges through
) d; U) Z/ k6 t6 N/ r* ? > simple programming method to correspond with full-range analog Receiver
* v: w7 C. M# q8 p > outputs (0 - full voltage).
. y7 @" U" \* B7 B: D$ X>
' ~+ g0 S' ^: e) u! Y> - Ability to configure and set sample rates for the inputs.
) n2 v- C) V0 r8 `1 a>
0 o1 K* Z0 ?& f1 n3 n4 S! e) s > - Digital output on Transmitter that turns on during the sampling period.
) S( k5 }6 M# i >
4 f: u% Q/ n) \ E) ? > - Ability to configure a power saving Sleep Mode in the Transmitter by
; `* H I1 h4 i# L8 m > both software control and input hardware control.
* [# `* I; b5 K& e>
6 n: a: b/ n- M t: x, W8 D> In order to configure the units, we would need a way to make the
/ R! F' r H5 S > settings. This would preferably be from a computer terminal so that
, N- X. [% `8 R9 H > configurations can be saved or easily duplicated for production volumes.
* N, P* ?, s( r, f2 u; b> The units should be small and compact with shielding, and able to mount
' l, _. [1 Q, X+ p% D4 s9 o7 s> to a printed circuit board with header connector.
9 i4 s5 }8 V) t- m9 U/ {/ Z' C0 ] >
$ j* a5 Q7 n3 }: O$ \2 y > At this time, we are interested in samples of a pair of modems that
- w8 K: f N+ @, z2 p# o5 p8 j7 e> might be similar to this proposed system. We do not expect that you
. L; l( @: O! I0 L> provide all of these specifications at this time. I can describe our
8 Q! f( ?! Q, v. g; F* l; }; f1 y> immediate application needs in the next email if this project is of
- n! x; m8 a% B4 n> interest to you. Perhaps you can make the samples by those
# r0 k+ h- g: _) O> specifications. This will allow us to test your radios before we move
1 c7 f* ]/ F8 T7 v> forward. We are interested in your 900MHz radio to start.
! K) \9 {$ I) W1 V+ e
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