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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

; @1 u; l- F4 c5 Y 客户要求如下,如果哪家工厂可以做,请和我联系
& c# l7 e% {2 B, M > The application that we have in mind is similar to others that we commonly
8 O' S- o4 v) b& p- J. l1 ` > have. If we were to pay for FCC approval, we would want to use the modem
, O7 O! |4 a y6 e' W) `> units in all similar applications under the same approval number.
5 t7 x5 w: `) n& e> Therefore, we would like to be able to configure the units to a specific
# K, a7 E L6 e- r. I0 E5 s> application. For the business that we do, this approach will yield more
: Q9 Z5 ?" d+ c* @" C m> sales based on the same product and approval. We are interested in the
, s! w! m$ X0 ^% V5 y2 {+ } > following specifications:
( R' T. c! f; k8 k; s5 P >
& V0 c [7 Y7 ~+ l; u: S/ H9 a' X > - 2 inputs at the Transmitter with three possibilities;
; `4 O* a/ \0 [6 _> 2 analog
|* m- N! P4 J4 h+ A > 2 digital
& k$ @4 J' }$ f> 1 analog and 1 digital
! d1 Y8 g! ?$ i& |9 l# [0 t6 u, W>
; E6 T n* N- q/ l$ B> - 2 outputs at the Receiver with three possibilities to match inputs
9 H5 e) E, U1 n >
4 e9 t0 m8 c1 C) b8 ]# w. L > - Ability to configure/define analog Transmitter input ranges through
/ p, I+ K/ }+ Z> simple programming method to correspond with full-range analog Receiver
' C, k* T, u {3 H > outputs (0 - full voltage).
* k( y7 l! t" w7 W* ~2 B- ^ >
* T r* e3 B1 X" N# r( q > - Ability to configure and set sample rates for the inputs.
+ C3 O! i @% v0 S. S" Q# R>
' m+ w- y) v7 t j: A$ e> - Digital output on Transmitter that turns on during the sampling period.
\ s) d0 }" k, R>
/ F' }, W" @, U4 o4 d* b > - Ability to configure a power saving Sleep Mode in the Transmitter by
) A2 D" h& h! @- U/ ?2 H > both software control and input hardware control.
+ s5 `% u+ u: Z2 Y# \& ^& \ >
0 y8 _: [# r- [$ }+ X( A! W1 E p> In order to configure the units, we would need a way to make the
$ e& c6 R; q. x4 J- P/ `9 S > settings. This would preferably be from a computer terminal so that
! C' ?* x. G$ A0 e0 ~> configurations can be saved or easily duplicated for production volumes.
6 H7 d( t7 B" K8 ?& E0 D > The units should be small and compact with shielding, and able to mount
/ ]# W" j7 L& Q8 D: @> to a printed circuit board with header connector.
8 M6 t9 \) T T6 ~% C >
* i1 P0 J9 g5 u> At this time, we are interested in samples of a pair of modems that
j0 ?0 p0 T0 l$ l* K2 U# g8 O> might be similar to this proposed system. We do not expect that you
" a- N1 M! `1 k+ q$ @) Y4 s> provide all of these specifications at this time. I can describe our
$ I& R u3 k6 r6 j: D0 e- k/ \7 g > immediate application needs in the next email if this project is of
" h! h t, x4 ]; L6 {- k, F> interest to you. Perhaps you can make the samples by those
5 k2 m! Q# K7 M5 C> specifications. This will allow us to test your radios before we move
. {7 K9 Q3 D |' S5 O > forward. We are interested in your 900MHz radio to start.
5 g# M4 D g$ `+ j( a- P1 B
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