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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

- _& R; N8 B! h 客户要求如下,如果哪家工厂可以做,请和我联系
: n& z$ M& R; J$ f$ P" s% a: H5 w > The application that we have in mind is similar to others that we commonly
4 k0 U7 l' ~7 A* m- {" @% s> have. If we were to pay for FCC approval, we would want to use the modem
/ h7 w$ S0 Z! t$ `> units in all similar applications under the same approval number.
7 X! p0 ]; w; O" ]+ A6 B3 O- k! ?> Therefore, we would like to be able to configure the units to a specific
7 u6 i5 K1 E4 O. F0 N/ y > application. For the business that we do, this approach will yield more
" ]& ^ e# H4 _2 Z! F/ }/ R > sales based on the same product and approval. We are interested in the
, m5 A4 o( b7 B W! w# U > following specifications:
, a+ g9 U) S. y# i; N: z4 D >
$ W/ C! Z! i1 A/ x; {2 G > - 2 inputs at the Transmitter with three possibilities;
. @! a3 X7 R5 ?' P3 @8 l> 2 analog
0 P5 R8 D7 `4 e3 h> 2 digital
* C7 c5 g7 f5 q> 1 analog and 1 digital
( [, s9 R/ K3 V" f>
5 B, b( ?# n* v$ u2 W% Z > - 2 outputs at the Receiver with three possibilities to match inputs
6 b0 l; w8 i( M* T>
: h- A8 X1 K) ]/ C$ E> - Ability to configure/define analog Transmitter input ranges through
7 M" K! m; S D > simple programming method to correspond with full-range analog Receiver
8 l, _& w* `. T( q# e" z+ A/ T> outputs (0 - full voltage).
. J; @ I( B I- y9 b6 O>
: p4 x/ ]& I% [ > - Ability to configure and set sample rates for the inputs.
; D% V, I8 V7 O8 Z- m >
0 E1 _# U+ q5 c; _ > - Digital output on Transmitter that turns on during the sampling period.
1 i) h/ S: L- N! E8 m* [>
4 P) H: M+ c7 M! x. }> - Ability to configure a power saving Sleep Mode in the Transmitter by
. A% {5 h; _7 n- U > both software control and input hardware control.
8 } }* U! c4 b L: V6 q>
; G/ }' _2 i+ K* n+ X; N> In order to configure the units, we would need a way to make the
8 L( A+ F5 `1 q8 \3 h) S> settings. This would preferably be from a computer terminal so that
V. i& Y- O: c$ J* r> configurations can be saved or easily duplicated for production volumes.
3 x9 ]1 ^5 l- V$ `, \4 B > The units should be small and compact with shielding, and able to mount
' O9 v# v0 o. y7 T2 C> to a printed circuit board with header connector.
7 Q$ @ B( X q) y5 i >
0 x6 M. |1 x0 ?) p/ q > At this time, we are interested in samples of a pair of modems that
2 e* P0 b4 ~# N& e. q# Z1 i5 I% \> might be similar to this proposed system. We do not expect that you
/ k/ c. [7 O) k& ?3 @3 g5 f2 N> provide all of these specifications at this time. I can describe our
2 o7 \, p% [! d> immediate application needs in the next email if this project is of
( g" |/ A% z7 a4 P> interest to you. Perhaps you can make the samples by those
9 K+ E/ [8 T; k9 D h- {' B > specifications. This will allow us to test your radios before we move
& ^( A! {- }9 Z2 z; j7 N> forward. We are interested in your 900MHz radio to start.
9 s- f# t# }$ n: P' i
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