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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

* @/ u+ J, ^: D q" ?; l R& S 客户要求如下,如果哪家工厂可以做,请和我联系
' |' b. ]* S1 B+ U/ c" _! R8 d> The application that we have in mind is similar to others that we commonly
. B. N1 y) S! _" _' m* D* l& q. c1 G > have. If we were to pay for FCC approval, we would want to use the modem
! n/ u- S+ |9 e! s! B1 ^ > units in all similar applications under the same approval number.
4 u$ b0 K# ^" L+ B > Therefore, we would like to be able to configure the units to a specific
5 v, D7 v9 }& R0 E' Z+ K2 u> application. For the business that we do, this approach will yield more
; s0 B8 d9 e$ ^0 @! s. i! e > sales based on the same product and approval. We are interested in the
5 H3 g& c5 r7 k+ k' w> following specifications:
' }1 b" }+ e/ W8 j2 [/ w7 q>
* a8 u% E+ g* i > - 2 inputs at the Transmitter with three possibilities;
0 \4 ?* u" f' a> 2 analog
$ C+ L: w% Q- |" L+ C > 2 digital
7 o* B3 D' \- V! a* E > 1 analog and 1 digital
8 @ m) H3 o$ P. G; N3 @6 \6 h >
/ b) E0 B, M1 h5 }- Y1 ~6 {2 G > - 2 outputs at the Receiver with three possibilities to match inputs
( Q- k, `5 n6 P! o* Y >
8 ?5 I0 Y$ E8 P! U: h, H9 {6 O7 h > - Ability to configure/define analog Transmitter input ranges through
% x4 A, j: s! W* t$ K* ` |/ W> simple programming method to correspond with full-range analog Receiver
; T& l- a( p9 B3 }& C> outputs (0 - full voltage).
" n; x r) u" T+ w >
, Q: |0 a: `% F3 A0 }5 M> - Ability to configure and set sample rates for the inputs.
8 Y! v& U# P9 l G+ z# U0 W1 n>
: u; Z$ e4 R& ^4 ?: m1 g > - Digital output on Transmitter that turns on during the sampling period.
0 }# h* J6 o0 Z& b7 }4 [7 }>
- t3 b w8 J: `5 D) p; G2 M> - Ability to configure a power saving Sleep Mode in the Transmitter by
" `+ O1 S6 _4 X8 J4 S> both software control and input hardware control.
$ @) q( f% c5 R5 p( w: h >
$ A6 f# S1 x" D5 B$ [, _+ ? > In order to configure the units, we would need a way to make the
" ^" p5 S! t7 Y% ~$ q> settings. This would preferably be from a computer terminal so that
6 v: U' C) d& P' G- t% ] > configurations can be saved or easily duplicated for production volumes.
+ I" d7 c- Y6 {1 L> The units should be small and compact with shielding, and able to mount
7 t% [1 d. C+ J+ r b > to a printed circuit board with header connector.
3 a- q6 {% }# [>
* Y# x1 h8 j \1 V> At this time, we are interested in samples of a pair of modems that
% E- y/ h8 x# j: D0 x6 r9 T7 D: F> might be similar to this proposed system. We do not expect that you
$ }! d, A. d' J9 C > provide all of these specifications at this time. I can describe our
7 q% }9 J( ~5 _% M1 c) a' }# b" g > immediate application needs in the next email if this project is of
* X# w, G* L+ q+ {; R& I) [> interest to you. Perhaps you can make the samples by those
( B' g& T$ {, P" z; u5 | > specifications. This will allow us to test your radios before we move
" \% b$ g: Q' A> forward. We are interested in your 900MHz radio to start.
! z9 U, A4 w4 j. j; p: Y
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