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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

4 r: k7 t2 M+ M 客户要求如下,如果哪家工厂可以做,请和我联系
/ } N, m3 y V7 [& f' o > The application that we have in mind is similar to others that we commonly
% q7 G$ _0 O. |# Z2 T) ? > have. If we were to pay for FCC approval, we would want to use the modem
" f3 f9 n$ z' U7 T > units in all similar applications under the same approval number.
2 I8 K, r% ^9 j- G( ?' p9 f> Therefore, we would like to be able to configure the units to a specific
% |$ W2 ?( i9 d5 {" u > application. For the business that we do, this approach will yield more
- z5 t. Z: W6 x' V* j > sales based on the same product and approval. We are interested in the
$ l+ D& Q, S( o9 ^' S! V+ i. a> following specifications:
# G8 u' P# O& R& i. P>
- u' r7 u7 z+ }. y% a, \4 ~) c; @ > - 2 inputs at the Transmitter with three possibilities;
. o) s) x3 Z* Y2 H# J > 2 analog
' I: ~0 v: c7 i% s# n > 2 digital
! S/ W4 P& p6 k; h' ^1 P* ?& Y> 1 analog and 1 digital
) T$ ^9 T: e6 H( n" }( m8 p# d >
% Z" S2 h- y3 ?0 H4 j > - 2 outputs at the Receiver with three possibilities to match inputs
, ]6 [% k! z& r4 g/ \>
$ G4 U/ U7 | l5 g> - Ability to configure/define analog Transmitter input ranges through
5 S- a' z- \2 U* e* C; { T; | > simple programming method to correspond with full-range analog Receiver
0 v9 U* o3 f! n- n > outputs (0 - full voltage).
; p+ \: V6 ? ?/ O) E: i>
0 N$ V& f8 S6 b) t0 p3 V) s& f > - Ability to configure and set sample rates for the inputs.
- N9 H. y, y; `5 Q D3 `>
0 F n6 ?, @4 E& R3 N/ B> - Digital output on Transmitter that turns on during the sampling period.
- I, w# ~% Z [+ L# a0 W>
! \# d3 M! Q5 S7 o! m > - Ability to configure a power saving Sleep Mode in the Transmitter by
. |/ U9 M( z7 K> both software control and input hardware control.
- f# \- n i" S3 \1 X >
4 Y5 E( b- Z" U U" g> In order to configure the units, we would need a way to make the
. m$ ^4 ?9 Z; J0 ~> settings. This would preferably be from a computer terminal so that
3 y! h) p# A# g& \$ v$ X3 h- ~ > configurations can be saved or easily duplicated for production volumes.
7 t- s& L3 S! W; z> The units should be small and compact with shielding, and able to mount
1 K) V( N3 }8 b& _, {$ ~ > to a printed circuit board with header connector.
( E8 n( s. h+ }4 L8 B >
2 C2 D' ^% ^1 W9 a> At this time, we are interested in samples of a pair of modems that
6 D* V' Q% m2 f" q/ ] > might be similar to this proposed system. We do not expect that you
m5 D8 @, o$ D; U u0 I> provide all of these specifications at this time. I can describe our
N7 F6 k$ C! y; ^, ?* I > immediate application needs in the next email if this project is of
' }7 o: d1 S* v' C, F8 y2 i> interest to you. Perhaps you can make the samples by those
4 ]' m# |7 Q R) F6 [7 Y8 T> specifications. This will allow us to test your radios before we move
5 S# p, N! Y+ T6 s> forward. We are interested in your 900MHz radio to start.
8 `8 J; o0 @& m( M. A
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