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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

* j4 E# E( r# C5 y& P 客户要求如下,如果哪家工厂可以做,请和我联系
; U5 @: R6 B2 ]3 ~3 L. X- u > The application that we have in mind is similar to others that we commonly
( x- s$ L1 c$ L: D8 X- { > have. If we were to pay for FCC approval, we would want to use the modem
+ j G* }) o! p6 G5 Q2 I > units in all similar applications under the same approval number.
% J: K0 P) j6 ]" W/ b5 l > Therefore, we would like to be able to configure the units to a specific
8 R. I9 [7 X0 X+ z > application. For the business that we do, this approach will yield more
. Z6 ]. i$ X7 P1 ?) v> sales based on the same product and approval. We are interested in the
" f& E5 G% X# F > following specifications:
7 Y6 C) V/ `: Y6 h0 `0 Z& Q>
$ U3 b1 p8 l$ Z% i* f5 x > - 2 inputs at the Transmitter with three possibilities;
& [0 j5 ^0 V6 }: M: ]3 V$ S8 i W4 j > 2 analog
% O0 V; P& ]4 k, n* h7 F+ q4 } > 2 digital
, s! b' c- y$ V6 o6 G6 l > 1 analog and 1 digital
Q3 x" s9 r5 ~' T' Q; y/ Q>
9 }7 ?( U- L% v, R/ _- K) Y- H > - 2 outputs at the Receiver with three possibilities to match inputs
2 P$ [# M0 g/ R>
, j/ F3 p8 ^; a. S> - Ability to configure/define analog Transmitter input ranges through
0 V* H% O% v/ z/ K2 P/ v > simple programming method to correspond with full-range analog Receiver
( V: C$ l3 v: S4 g# T3 e. d > outputs (0 - full voltage).
; a+ i- B1 h9 X1 Z+ f>
. E C/ e: u C+ x; T> - Ability to configure and set sample rates for the inputs.
0 \. v0 h" t) u' W t>
( }3 |! \4 @- z4 y. M2 d9 H > - Digital output on Transmitter that turns on during the sampling period.
( f E+ |/ t; N% C q; i>
+ j- T" k9 b1 @4 N4 p > - Ability to configure a power saving Sleep Mode in the Transmitter by
- O9 p a3 p( a > both software control and input hardware control.
5 g; c0 Q# c+ [( `& I% y: F >
, |: W7 D( e- {: \3 Z* h# J w, q$ o > In order to configure the units, we would need a way to make the
& X( }! v- _, j > settings. This would preferably be from a computer terminal so that
3 }2 T2 a" H% ~6 [. R > configurations can be saved or easily duplicated for production volumes.
& w2 M' x: H' T> The units should be small and compact with shielding, and able to mount
/ l( C' w u% e; s1 U% a8 h" W0 I$ ~ > to a printed circuit board with header connector.
# D+ I. n* F; L* D>
2 i0 O; A5 j$ ~) I3 ^1 U" \ > At this time, we are interested in samples of a pair of modems that
( I( |& k& n) h% y& s# s4 p > might be similar to this proposed system. We do not expect that you
9 F4 N1 c* W. ~, Z, L# {> provide all of these specifications at this time. I can describe our
& G! L5 @& O3 z* K7 ? > immediate application needs in the next email if this project is of
* S2 Z, h# Q: y/ l' }7 i- I > interest to you. Perhaps you can make the samples by those
8 v4 [6 f" A/ o6 |4 M > specifications. This will allow us to test your radios before we move
. s3 d8 N, Z3 |1 \7 a; I4 c > forward. We are interested in your 900MHz radio to start.
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