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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

4 Y+ ?; x5 r0 f9 S客户要求如下,如果哪家工厂可以做,请和我联系
7 X$ H: f. i0 f/ ~( ^# n& y > The application that we have in mind is similar to others that we commonly
3 G9 f+ \+ r, l; R/ m > have. If we were to pay for FCC approval, we would want to use the modem
( L# g' T; s; e1 C8 D2 A) D> units in all similar applications under the same approval number.
$ S7 X( t4 _3 K9 g" F> Therefore, we would like to be able to configure the units to a specific
( n& B3 }5 l; F1 e+ F; g& ` > application. For the business that we do, this approach will yield more
! n2 u- s- W3 B. { > sales based on the same product and approval. We are interested in the
7 S2 S$ @' F2 Q0 n' @ > following specifications:
, ]! b7 H: C" U% p( m% B>
: _: J) Q G) B2 x> - 2 inputs at the Transmitter with three possibilities;
* }" u( J' i( k: y3 Q# Y5 I> 2 analog
' @6 X' I- k m! X > 2 digital
: ]" c+ m! H4 N' D G > 1 analog and 1 digital
% B, J4 {* ^2 A1 a>
( t/ n# }, f0 |: D6 [ M > - 2 outputs at the Receiver with three possibilities to match inputs
$ Q+ H) G Z1 ?' }: W >
8 c; A7 r2 n" h# R- v w> - Ability to configure/define analog Transmitter input ranges through
/ G9 F S+ `$ k5 R> simple programming method to correspond with full-range analog Receiver
0 F t7 h* e0 n0 g" w > outputs (0 - full voltage).
' x+ W8 \" Z0 _+ c, h >
) l: B5 d8 c( h* ` > - Ability to configure and set sample rates for the inputs.
$ L3 k/ M2 I; U. J( t, }: z, u( L>
0 x2 y v0 l0 n) K' h u# f> - Digital output on Transmitter that turns on during the sampling period.
4 K0 K* V9 J3 F: o. m >
) ]% Z! k" q+ x- E > - Ability to configure a power saving Sleep Mode in the Transmitter by
$ ^3 {) w5 d. F9 P. p: u > both software control and input hardware control.
/ z" ]- ]% |# |4 B >
; X5 D8 ]2 v+ I+ q( u2 U% }1 v* r* [ > In order to configure the units, we would need a way to make the
! e( F m: d8 v- a> settings. This would preferably be from a computer terminal so that
, K# q) k, l9 Z5 }2 G7 ]: y> configurations can be saved or easily duplicated for production volumes.
( ]# _) W" I0 v7 ]4 | > The units should be small and compact with shielding, and able to mount
& N7 H4 m8 D4 p* `' w- m, X> to a printed circuit board with header connector.
( u" d8 z' a: h1 C>
, l8 s; \$ G* z% H; r" }+ _> At this time, we are interested in samples of a pair of modems that
# B) ^+ N: O# s4 Y/ g > might be similar to this proposed system. We do not expect that you
# s8 R; p- w5 d/ H5 E" `> provide all of these specifications at this time. I can describe our
& r; ~# j7 f0 r > immediate application needs in the next email if this project is of
! c& i, z( u* A0 U9 s! M9 p1 ~ m! t7 l > interest to you. Perhaps you can make the samples by those
~/ C/ _; T; I% h > specifications. This will allow us to test your radios before we move
: M o5 r9 f$ U6 Q1 e/ ~9 d > forward. We are interested in your 900MHz radio to start.
4 G B3 c% G6 [; i) h @% \, s) H
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