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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

# O2 q/ o( T3 g4 S 客户要求如下,如果哪家工厂可以做,请和我联系
3 Z7 T; s6 b0 A& G! y k+ z+ U- z> The application that we have in mind is similar to others that we commonly
* w" ~# |/ D/ {3 O/ p5 [> have. If we were to pay for FCC approval, we would want to use the modem
) q5 R3 ?/ x0 ^% c( f> units in all similar applications under the same approval number.
' _. V" Y( t7 T6 t3 {> Therefore, we would like to be able to configure the units to a specific
) k" q+ r! X, L' H! d6 i" L > application. For the business that we do, this approach will yield more
+ w; J1 B2 G- I: N1 _ > sales based on the same product and approval. We are interested in the
$ P+ Y) t/ o5 L! L3 E3 S& \> following specifications:
+ p6 d! g0 H$ ?& B>
4 X" M9 C1 q: T% `9 ]> - 2 inputs at the Transmitter with three possibilities;
+ F3 s2 \! o+ j; ^> 2 analog
+ p3 i& E' O# d: g > 2 digital
# y! p3 @4 [: O% w, v8 q2 A ?> 1 analog and 1 digital
9 z3 t3 g1 E" C- d C2 I; q >
2 R# x5 D0 X1 A% ]( B- H8 b' @# z% }" X7 H > - 2 outputs at the Receiver with three possibilities to match inputs
4 `8 f5 S, m+ q$ z3 Y3 k/ r>
- F8 S5 k" n. L% [- Z1 |* ~> - Ability to configure/define analog Transmitter input ranges through
; z; G+ ?8 o3 p" k" O > simple programming method to correspond with full-range analog Receiver
$ C* ~+ s7 N2 T3 j > outputs (0 - full voltage).
+ P+ z$ h4 m' Q- d) L$ Q4 O/ F >
" E! Z5 {4 `3 C s, K > - Ability to configure and set sample rates for the inputs.
/ l+ G& P R% ~; |- |# s >
: u/ k- L- e/ S0 m5 h; r( \5 l > - Digital output on Transmitter that turns on during the sampling period.
9 t0 H( i, D5 R& F>
3 G) B, B0 d; X0 e > - Ability to configure a power saving Sleep Mode in the Transmitter by
" [1 m- d* ^, @% }' @* q+ Z > both software control and input hardware control.
# \& _/ i- p4 e& x>
4 p+ `$ m* z5 d# V* G4 r( ]> In order to configure the units, we would need a way to make the
) x N* @. S; T6 @' J2 ? > settings. This would preferably be from a computer terminal so that
( X* n* D6 v: K) _! g( b$ c> configurations can be saved or easily duplicated for production volumes.
$ M- D% x2 B' W& o4 n6 S> The units should be small and compact with shielding, and able to mount
* U: R! |/ Z) \6 s7 p; w> to a printed circuit board with header connector.
1 m- R. a8 H. w3 l2 t7 n4 q' i >
9 I5 b B# D. x- ]% l > At this time, we are interested in samples of a pair of modems that
% R, e& ]4 Z, i3 L& K1 Y> might be similar to this proposed system. We do not expect that you
, R1 v4 ]# V. I+ k( B: f> provide all of these specifications at this time. I can describe our
9 L9 |/ }( F( z" h6 V: }> immediate application needs in the next email if this project is of
, Z1 F1 i3 J \4 ^7 A. O > interest to you. Perhaps you can make the samples by those
4 w( Q3 Q- y. S& C; o, [ > specifications. This will allow us to test your radios before we move
8 @, `) d( ]8 e > forward. We are interested in your 900MHz radio to start.
1 y9 c- M5 B5 n' O+ _9 R
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