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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) w2 r; M6 i% g 客户要求如下,如果哪家工厂可以做,请和我联系
4 ]5 r+ _! r; Q4 V > The application that we have in mind is similar to others that we commonly
: \4 [( P* m4 e8 V6 R > have. If we were to pay for FCC approval, we would want to use the modem
; M6 V0 g+ w9 d > units in all similar applications under the same approval number.
6 c) p/ e% t3 k& Z" ^ b1 R> Therefore, we would like to be able to configure the units to a specific
/ t+ y5 E3 w: S8 S> application. For the business that we do, this approach will yield more
- G& L+ }* Y, [$ S, V4 u> sales based on the same product and approval. We are interested in the
" H& P* t0 [* Q0 K3 Q> following specifications:
1 W, X; v3 O, W >
& t' I( b, g5 S9 c( y0 D1 m+ q > - 2 inputs at the Transmitter with three possibilities;
* k" a9 c3 J l) o9 T> 2 analog
; C2 o D+ D/ V \3 A. L > 2 digital
$ l! ?" [/ C) T! ^$ q+ y& K > 1 analog and 1 digital
; ~! X" J1 ?9 I) e>
" O l" v! F' K: a* N0 y> - 2 outputs at the Receiver with three possibilities to match inputs
* V) ^9 e$ |- A; F: s>
/ @# e! _" ~) \- }( f > - Ability to configure/define analog Transmitter input ranges through
3 ~# Y! A; A& o: ?# v > simple programming method to correspond with full-range analog Receiver
4 `7 m; s* |& k9 s& t# \( D> outputs (0 - full voltage).
* H' w# e/ G8 \ y0 S >
, K6 l& ]- P/ `3 y7 c( B6 [ D& Y8 ~ > - Ability to configure and set sample rates for the inputs.
4 g: z/ Z% k3 z>
' Y S+ R0 y6 B- R/ n7 I% x > - Digital output on Transmitter that turns on during the sampling period.
( `9 {$ a5 u* t>
$ g$ r) Q$ q$ s0 J( v; M3 J N > - Ability to configure a power saving Sleep Mode in the Transmitter by
4 d( M5 v) [) l/ N6 I! k > both software control and input hardware control.
$ f) G Y# S2 D4 [. Q3 A3 a: n- Q >
# i' v, C+ Q3 o# R# A6 @+ S0 Y" [> In order to configure the units, we would need a way to make the
* q5 d. E3 o- E: O# |- X& n8 s > settings. This would preferably be from a computer terminal so that
$ o, O2 l1 Q* t1 M0 `, j D. T > configurations can be saved or easily duplicated for production volumes.
% N9 T: R8 @5 ] > The units should be small and compact with shielding, and able to mount
( q. l- m/ N }% g> to a printed circuit board with header connector.
7 o8 ?5 s' F' x" |+ @ >
# k6 [! X2 J6 {8 W; b> At this time, we are interested in samples of a pair of modems that
, y* }# c) o+ S* p > might be similar to this proposed system. We do not expect that you
$ w# E' n2 N, L% u3 e9 d4 s2 U > provide all of these specifications at this time. I can describe our
) x; G0 ?. v: D* N> immediate application needs in the next email if this project is of
2 `2 S; W0 ], |' u > interest to you. Perhaps you can make the samples by those
6 p1 Y( r. X1 A3 q( L> specifications. This will allow us to test your radios before we move
$ T- J" r: |0 x8 p' f > forward. We are interested in your 900MHz radio to start.
. |, i* z, A, a, F6 U9 _1 S0 o
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