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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

' x4 C' ]. G) Q( P 客户要求如下,如果哪家工厂可以做,请和我联系
# {9 c: I/ I9 F3 _> The application that we have in mind is similar to others that we commonly
8 Q% k4 j5 E, ^3 o8 Y6 m > have. If we were to pay for FCC approval, we would want to use the modem
$ | n. T: N' ^$ s- y( c6 D7 B> units in all similar applications under the same approval number.
8 M: x, ?' f) J$ O/ S; d! W > Therefore, we would like to be able to configure the units to a specific
' n3 Z0 A+ E3 [" `* c > application. For the business that we do, this approach will yield more
' G6 Y0 p* _1 T9 P> sales based on the same product and approval. We are interested in the
: o- ?1 S9 P+ Q/ N, z$ _5 `0 x > following specifications:
- K" v/ r/ G5 |0 ^) _& `, t1 b2 F >
9 H+ W& W+ h+ t, d E* F> - 2 inputs at the Transmitter with three possibilities;
9 [' w3 ^- m3 p7 }7 F> 2 analog
: F- c6 O4 i/ N: W2 Z5 T > 2 digital
, D' W) [& H1 p# A9 y+ O" {! a! P > 1 analog and 1 digital
- r" U5 ^; o0 z/ S >
! T( X/ V8 l/ m: \1 f> - 2 outputs at the Receiver with three possibilities to match inputs
/ X" b2 T$ W+ J1 f& o4 [>
- ^2 ?) e5 M, [. d$ r> - Ability to configure/define analog Transmitter input ranges through
$ B8 ]7 K& l+ I4 ?& f+ p > simple programming method to correspond with full-range analog Receiver
- s5 |6 l( x5 V/ a1 \ > outputs (0 - full voltage).
* X# N6 @5 {& I; N; A' @/ s h+ X2 o >
. j0 e9 F2 N2 d% G' H9 R0 i > - Ability to configure and set sample rates for the inputs.
) t1 |3 N: N8 }, @, e8 B >
$ V8 y0 |5 c8 {- u* O0 r > - Digital output on Transmitter that turns on during the sampling period.
. ~* M3 n& P4 X1 m1 L >
: B9 `% z# F" Z1 Y) y> - Ability to configure a power saving Sleep Mode in the Transmitter by
; K3 @; d# }" t$ E; T! c* A> both software control and input hardware control.
* r+ {+ R4 Y2 m2 c2 \& u$ a >
, h! X# p" [0 H! h. x > In order to configure the units, we would need a way to make the
# F4 M' @- p) h- P> settings. This would preferably be from a computer terminal so that
- c* ?( P% E0 q9 K- f3 k > configurations can be saved or easily duplicated for production volumes.
: P, C. L7 [5 v> The units should be small and compact with shielding, and able to mount
+ d% @' B/ @( z G> to a printed circuit board with header connector.
# m: O7 @- \( e$ B1 O* ? >
7 i4 ?* T: v2 J6 _9 l > At this time, we are interested in samples of a pair of modems that
4 a. x9 N$ F4 `> might be similar to this proposed system. We do not expect that you
1 d7 k, A! @! M& |# d2 K2 X+ E> provide all of these specifications at this time. I can describe our
- w/ d; V9 R" o8 V! g6 } > immediate application needs in the next email if this project is of
2 x) t5 Y$ U' d- A> interest to you. Perhaps you can make the samples by those
3 z: G- O+ V- M0 q$ A9 K9 a# j > specifications. This will allow us to test your radios before we move
) F1 C& [5 N9 t2 ^* \> forward. We are interested in your 900MHz radio to start.
- G+ T3 W& X/ r: C+ |. C9 `* R
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