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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

) O3 F2 v2 ~3 R; _- ^客户要求如下,如果哪家工厂可以做,请和我联系
! u3 X$ i2 h. P! L4 X > The application that we have in mind is similar to others that we commonly
+ O6 W% u9 s+ T& ]- A# q6 a: N > have. If we were to pay for FCC approval, we would want to use the modem
+ H+ o5 j/ p. q! w! i > units in all similar applications under the same approval number.
, D9 U: g' ~9 u0 r > Therefore, we would like to be able to configure the units to a specific
+ \* o i, Q7 u! f6 L$ v* O> application. For the business that we do, this approach will yield more
+ B# p$ o/ V1 B/ L) J! F > sales based on the same product and approval. We are interested in the
6 {- F7 X: a9 O. [' u3 N. v> following specifications:
6 K. x) m) C7 X! \6 K: r>
. Q0 M+ O2 c3 z* j. ?3 q> - 2 inputs at the Transmitter with three possibilities;
$ Z# J9 Z; ` W+ A' _ > 2 analog
: k) Y/ Q: A5 y) e > 2 digital
- Y u# B) n& @7 n+ j% ]> 1 analog and 1 digital
) d' R$ @4 X) |2 a( \5 p! C>
4 i4 p& H7 `* b/ {$ D3 \: N> - 2 outputs at the Receiver with three possibilities to match inputs
" W; F; h8 E, d& g; i- K >
/ ]! ?0 x, U1 B# b> - Ability to configure/define analog Transmitter input ranges through
8 U& F+ O* m- U. E; k% N1 ` > simple programming method to correspond with full-range analog Receiver
: D7 W0 ]9 b$ q> outputs (0 - full voltage).
+ h, ]# `8 L3 i ?! U >
" b" n9 J* F- R > - Ability to configure and set sample rates for the inputs.
; V" ~ E( P% I5 _) P4 k& I& [0 c' U/ l>
! R9 n2 W6 o4 M > - Digital output on Transmitter that turns on during the sampling period.
1 ?. E/ B! k0 G>
; O$ S4 j9 Z5 y8 [" g> - Ability to configure a power saving Sleep Mode in the Transmitter by
* ^6 S( n8 A9 S) ?9 e > both software control and input hardware control.
2 M) n# t9 w3 v>
5 X: K9 w% o5 R( e > In order to configure the units, we would need a way to make the
# U* e( d7 Y1 k0 Z4 b A7 }> settings. This would preferably be from a computer terminal so that
& W7 }( w- A W( C" b > configurations can be saved or easily duplicated for production volumes.
0 V _- H+ m4 @* d7 ? > The units should be small and compact with shielding, and able to mount
+ k$ Q+ w# j; d! F" P( o( b5 V1 X > to a printed circuit board with header connector.
) ?0 w) g5 E' D8 j9 m* @, F6 N >
; S2 h4 D; @( L3 L) ]$ G> At this time, we are interested in samples of a pair of modems that
3 x# ~! s" s$ }5 i* n# _, I> might be similar to this proposed system. We do not expect that you
2 ?$ ?" X7 Z8 @% c5 o; N: S> provide all of these specifications at this time. I can describe our
" r% S' p# @+ q* E! x> immediate application needs in the next email if this project is of
4 l% D% [) K2 O$ d/ J3 _* D > interest to you. Perhaps you can make the samples by those
" B7 \+ S# h! ^/ a p > specifications. This will allow us to test your radios before we move
% T9 ^1 }3 a* \: S9 S> forward. We are interested in your 900MHz radio to start.
$ X! M8 G6 x3 O
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