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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

. K& @) Y9 M3 p+ [% j/ Z 客户要求如下,如果哪家工厂可以做,请和我联系
5 S/ P% }* Z! ~) I! I) ]! p& u> The application that we have in mind is similar to others that we commonly
0 {- n2 r1 i1 @8 q6 B: O( _> have. If we were to pay for FCC approval, we would want to use the modem
6 h7 N& w/ _$ J7 B6 w$ x2 P. U; B/ C> units in all similar applications under the same approval number.
9 }9 b2 @" y( _> Therefore, we would like to be able to configure the units to a specific
# {4 p3 m0 J; ]- k) ] > application. For the business that we do, this approach will yield more
: l/ L! X. d: F6 ?; r8 m% q > sales based on the same product and approval. We are interested in the
& {7 x/ Z) Y& z> following specifications:
- n* u" y. Y) ?5 k9 @8 B >
8 i5 c- A- a5 q0 u" A+ G7 O8 P& N- d- B> - 2 inputs at the Transmitter with three possibilities;
2 @% S% N0 p+ t" J6 `! c1 _ > 2 analog
6 a" d) U @% T: d1 `. D > 2 digital
6 {/ U8 G6 l; J. D# s3 a! [% ]> 1 analog and 1 digital
/ V; F# K) V; t' c- L>
( ?7 b8 O1 ~9 e2 v > - 2 outputs at the Receiver with three possibilities to match inputs
7 ~& {3 M# m$ a* z \0 V- Q >
) b/ X9 h/ q/ q! d > - Ability to configure/define analog Transmitter input ranges through
$ d2 }+ g5 ?& R0 N8 t8 Z> simple programming method to correspond with full-range analog Receiver
$ l( R' H0 ?6 B' U> outputs (0 - full voltage).
% s+ z# y. L. H5 I >
$ I D5 j. ]7 m0 o8 K+ t> - Ability to configure and set sample rates for the inputs.
! x1 F0 `" q8 M/ N8 J; W: Q* |>
8 ^8 V: T9 x0 n& S> - Digital output on Transmitter that turns on during the sampling period.
4 ^6 h: y8 X0 P >
3 s% v( c: V/ H5 O# m* o5 q > - Ability to configure a power saving Sleep Mode in the Transmitter by
7 x# E9 r8 B! d3 R* Q2 o2 V> both software control and input hardware control.
4 o5 W) J$ n) D9 }. t >
, t+ B4 u, L* S! g > In order to configure the units, we would need a way to make the
@1 X, w& C, [ > settings. This would preferably be from a computer terminal so that
7 r+ y7 S' y8 C3 Q> configurations can be saved or easily duplicated for production volumes.
1 i2 d3 ^1 t& Z5 l' H, {0 K- S6 p4 H> The units should be small and compact with shielding, and able to mount
0 C% [% N( o) x; j: h > to a printed circuit board with header connector.
: r" ^ b7 J4 s; r/ J+ C5 h >
3 k& M2 w3 r( R2 j- U> At this time, we are interested in samples of a pair of modems that
8 c) |6 @8 i1 J* l0 s6 d > might be similar to this proposed system. We do not expect that you
| k) t, H' D; l6 N> provide all of these specifications at this time. I can describe our
- o# U* ?: ]0 J. h X( K > immediate application needs in the next email if this project is of
3 a: a4 q3 \# R, l > interest to you. Perhaps you can make the samples by those
* Z; ]/ v3 \" ^7 |1 |4 w# B> specifications. This will allow us to test your radios before we move
& [: Y2 n+ v, O) G* w: v* Q> forward. We are interested in your 900MHz radio to start.
P# B( A* |7 i# w
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