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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* e8 j: w C% c8 x2 R; \ 客户要求如下,如果哪家工厂可以做,请和我联系
+ P, {( K5 d) G4 r, z > The application that we have in mind is similar to others that we commonly
+ n t! I7 q6 E7 C @> have. If we were to pay for FCC approval, we would want to use the modem
8 F, O) v$ Y: @( q, |> units in all similar applications under the same approval number.
8 p; Z A( M8 {1 u > Therefore, we would like to be able to configure the units to a specific
+ g) c+ R: `! h5 L5 v > application. For the business that we do, this approach will yield more
1 o+ }2 r! q0 ]. H5 V9 I2 c > sales based on the same product and approval. We are interested in the
+ K& g6 n, t8 X% h6 _3 A > following specifications:
9 d, Y8 e+ A# {; ~0 } >
1 Q1 L/ _0 x6 B/ R9 e> - 2 inputs at the Transmitter with three possibilities;
6 Q, _1 S& g6 h6 L. \" L > 2 analog
: m: V3 j j& q; h N> 2 digital
+ |' T. h9 G& C s$ D( t> 1 analog and 1 digital
& J5 E$ j7 ]. f5 F/ [* M >
) y: c3 u0 G) @; t6 f% `6 C > - 2 outputs at the Receiver with three possibilities to match inputs
7 b+ r4 P0 s/ @>
# x" F. c+ o I1 H9 x2 k6 K9 P > - Ability to configure/define analog Transmitter input ranges through
1 q# C$ _" `" g- M> simple programming method to correspond with full-range analog Receiver
0 K4 h/ _5 P% g w q# v: k> outputs (0 - full voltage).
: A$ s! s. K$ Z$ m8 H >
7 \. h2 ~/ O0 t1 D" m> - Ability to configure and set sample rates for the inputs.
: W- N5 ?, f" h- s >
. i8 [. _% V1 R+ V, l5 ~# v' w2 |$ Z > - Digital output on Transmitter that turns on during the sampling period.
; h& W, M2 K# C% l >
; o% n1 h/ ]" _2 e2 m1 w> - Ability to configure a power saving Sleep Mode in the Transmitter by
' U, h8 u2 h8 G1 c5 J> both software control and input hardware control.
0 l3 s' B( T6 b( M+ g: h >
$ V2 }4 I9 Y6 c$ E3 a8 ~ > In order to configure the units, we would need a way to make the
( U; @, u0 n P; R6 w> settings. This would preferably be from a computer terminal so that
& V" O# j/ \: s9 y > configurations can be saved or easily duplicated for production volumes.
_) c5 g9 r0 M/ Y1 Y+ A9 a" s! K > The units should be small and compact with shielding, and able to mount
+ y9 F. ~; E j$ a1 |+ L> to a printed circuit board with header connector.
9 `" {" i1 [% ]0 m6 I9 \>
1 Q! F' G) {% B# y2 T > At this time, we are interested in samples of a pair of modems that
! ?% z i/ t' o" f4 h' Y> might be similar to this proposed system. We do not expect that you
6 C' s+ e' [5 b2 C. Y> provide all of these specifications at this time. I can describe our
2 a6 R' i7 g4 x> immediate application needs in the next email if this project is of
' e/ R( L! \9 K* t. w+ p) [6 l9 K > interest to you. Perhaps you can make the samples by those
) Z$ g1 M& E) K. v* U, P6 B! F- q > specifications. This will allow us to test your radios before we move
" [* a" [( M% m( K5 I" y> forward. We are interested in your 900MHz radio to start.
8 W6 O$ l& I( K! y6 N/ V5 D
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