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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

3 |! ~9 p9 r \6 s4 I) r0 D; H4 J 客户要求如下,如果哪家工厂可以做,请和我联系
! v& f4 c4 U& w# i [ ]4 Q> The application that we have in mind is similar to others that we commonly
7 S: O1 [( `# V > have. If we were to pay for FCC approval, we would want to use the modem
- r' q! g0 n' _, b6 P> units in all similar applications under the same approval number.
0 R& N7 M: N* f9 x- {> Therefore, we would like to be able to configure the units to a specific
( Z2 m6 T" A g3 R& r> application. For the business that we do, this approach will yield more
8 Z0 T2 H' \8 F# l> sales based on the same product and approval. We are interested in the
: d5 p. y8 _1 E> following specifications:
3 n+ ?% K/ J9 p+ V, w >
( D6 k1 ^, R; q. Z# T$ F6 q. o& Q> - 2 inputs at the Transmitter with three possibilities;
: ?* D7 d5 c+ c& s# B > 2 analog
+ \5 i( a6 y& T2 M2 p. e) @> 2 digital
( N+ b- t4 s$ P6 ?# l7 n" X! m> 1 analog and 1 digital
0 ^ _$ N- L' \% J& V>
5 i3 z6 Y1 I1 g4 ?! [; }, @ > - 2 outputs at the Receiver with three possibilities to match inputs
2 B3 N4 d# ]+ ^1 X; a4 G>
2 U6 Z$ f* L k7 ?7 ~( H> - Ability to configure/define analog Transmitter input ranges through
6 a) ^$ ]: d$ U' L' V> simple programming method to correspond with full-range analog Receiver
2 N4 s: X$ m! Q> outputs (0 - full voltage).
9 B- A- U+ j8 _ >
/ v9 m" o0 Q! Z > - Ability to configure and set sample rates for the inputs.
( d- D. ~* I6 d* d6 _ >
: w% O9 ~/ s3 O! K3 ?3 a1 C> - Digital output on Transmitter that turns on during the sampling period.
9 d) d4 V, H5 m( H% X; y/ r; u2 |! P2 Q>
6 O9 f/ @1 |2 {" l> - Ability to configure a power saving Sleep Mode in the Transmitter by
. O( ~% ~1 q" x; p3 }5 _" r) a$ m > both software control and input hardware control.
" y: G& o8 w5 Z* M- `: B/ o" `% M >
: y; E1 `+ A6 H > In order to configure the units, we would need a way to make the
+ T3 y: w+ A; S2 v( N > settings. This would preferably be from a computer terminal so that
1 ~7 W D; X& \% a& p> configurations can be saved or easily duplicated for production volumes.
" V" S8 @# F! E9 m/ ~% X' u > The units should be small and compact with shielding, and able to mount
/ y( j8 L9 l! t) |8 R> to a printed circuit board with header connector.
5 e3 K0 Z' r1 t4 B* h$ g3 u >
+ l: ?+ \/ @0 P > At this time, we are interested in samples of a pair of modems that
: y ?8 M0 J- O1 S > might be similar to this proposed system. We do not expect that you
/ ?9 e+ J1 M2 p9 { > provide all of these specifications at this time. I can describe our
# `7 T4 ]8 O/ X8 F6 C( t" Y> immediate application needs in the next email if this project is of
+ U; O2 O5 m* a8 c0 k- U5 A% Z& B( Q > interest to you. Perhaps you can make the samples by those
9 O% L/ T: h5 U) r4 s: Z > specifications. This will allow us to test your radios before we move
- P; I( _& X6 ~4 P* e3 j> forward. We are interested in your 900MHz radio to start.
. `% T; O3 B" D; ^/ U
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