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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

! p6 h9 J `7 g9 \& S9 v) w客户要求如下,如果哪家工厂可以做,请和我联系
! Y4 O8 w3 c: [, p% b. v q( g9 Z> The application that we have in mind is similar to others that we commonly
# B2 |$ e; o! ]& q8 C7 Q3 N/ z. ]) g > have. If we were to pay for FCC approval, we would want to use the modem
4 f& L3 |- C/ \9 m: V4 B$ x> units in all similar applications under the same approval number.
- }( f$ ]: t1 G+ Z7 m/ J6 T7 [ > Therefore, we would like to be able to configure the units to a specific
. ?/ M2 ]) {. m+ K8 | I6 ~% g> application. For the business that we do, this approach will yield more
( U) }! v- G5 |2 x. e7 K" t > sales based on the same product and approval. We are interested in the
" W% E" t Q) u, N+ L, Q1 `" G > following specifications:
2 \% b, Y$ H$ ^) P: [+ Q9 S: m>
$ I: _; |( O3 {> - 2 inputs at the Transmitter with three possibilities;
3 b% }+ d* b- Z/ {; X > 2 analog
* ?( |; `% @) V3 a, x) ~1 f% P1 j* B > 2 digital
2 B. n, J6 K% A0 ~# A0 ` > 1 analog and 1 digital
% G; @: U" g0 l+ Z3 @ >
% V2 p `3 n3 _5 L8 c> - 2 outputs at the Receiver with three possibilities to match inputs
& ~+ F+ E: Z$ \( f3 e>
# O9 K. U6 P1 x> - Ability to configure/define analog Transmitter input ranges through
# O. Q4 c$ N5 x) F> simple programming method to correspond with full-range analog Receiver
5 V0 D3 m4 @* q% e3 g) V > outputs (0 - full voltage).
+ _, a" A: E& f% L* @- i >
( O* Z2 o6 v( m9 r> - Ability to configure and set sample rates for the inputs.
4 D+ K, d7 p7 b" q5 e3 s' \>
! V8 Q2 G$ R! V5 F; G5 I6 O > - Digital output on Transmitter that turns on during the sampling period.
* N8 |; H% P" ?5 y4 F% c>
# D% P, U8 E5 T+ r2 s: t> - Ability to configure a power saving Sleep Mode in the Transmitter by
4 h, B# p* S$ }2 }; k> both software control and input hardware control.
; t( x) e& z; |: ^; N >
" d+ Z) |6 S: B" B+ V2 Q. |2 I > In order to configure the units, we would need a way to make the
. g0 W$ F! S* ?- {6 a- i% y > settings. This would preferably be from a computer terminal so that
, Q! B1 ?- v$ K( \% c$ T! K > configurations can be saved or easily duplicated for production volumes.
: T5 i4 O/ U5 Q! W0 L3 v > The units should be small and compact with shielding, and able to mount
& s6 t! R8 Q0 E > to a printed circuit board with header connector.
+ | b2 q% T# O& j- E6 g' k! I+ V$ f >
% Y0 A1 C) T) O7 f! V> At this time, we are interested in samples of a pair of modems that
% [" k7 z7 t: q) E> might be similar to this proposed system. We do not expect that you
/ @8 Z6 @$ i- R' {6 }* ]- b% l > provide all of these specifications at this time. I can describe our
. k2 p. S/ T# t+ g) L5 ]" o$ G> immediate application needs in the next email if this project is of
/ K2 [7 I A1 G9 _ > interest to you. Perhaps you can make the samples by those
. {$ s% X; H q> specifications. This will allow us to test your radios before we move
{% C" a4 z$ C" M$ _% X; f7 w# M> forward. We are interested in your 900MHz radio to start.
1 N: O$ V) C+ ~5 |/ ` I& l/ U; L
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