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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

* L, X. S4 U. w7 \) ^. T6 ?( w 客户要求如下,如果哪家工厂可以做,请和我联系
( a' h3 `9 i! Y1 { S2 a) t2 Z > The application that we have in mind is similar to others that we commonly
+ S1 P* G. x0 p > have. If we were to pay for FCC approval, we would want to use the modem
. ]. z: M3 z0 }% H> units in all similar applications under the same approval number.
" I* J6 n7 F5 t- ]; H > Therefore, we would like to be able to configure the units to a specific
8 T- N% k T$ X. x6 v0 [8 ?> application. For the business that we do, this approach will yield more
; v; ~0 s0 Y/ o2 Y> sales based on the same product and approval. We are interested in the
9 a! T* k8 J6 e> following specifications:
! Y& }$ c8 y7 a9 m Q! u >
?7 q1 d; ]2 C0 v> - 2 inputs at the Transmitter with three possibilities;
- O- h$ w9 N1 G4 [2 i> 2 analog
5 x% R8 J1 J9 v7 f, j+ ~) O> 2 digital
4 }3 ]" y0 S& n/ [> 1 analog and 1 digital
& o/ c$ n9 i8 ]% L6 N >
3 g0 A% g5 u) L> - 2 outputs at the Receiver with three possibilities to match inputs
$ N) w% f8 u& W>
: T- }, k# L* v2 F v. u( R/ p> - Ability to configure/define analog Transmitter input ranges through
2 B0 x5 g, G0 A; {- S4 f( o > simple programming method to correspond with full-range analog Receiver
) U. ^1 L- w6 h3 q; Y7 o6 S! ^& _ > outputs (0 - full voltage).
, x* c! F3 a# g& n" x >
6 K7 e; _ i( D, f4 F% |% E> - Ability to configure and set sample rates for the inputs.
y; U) X5 i) t) _( U7 Q>
. y8 d/ V0 l7 Z- X% O > - Digital output on Transmitter that turns on during the sampling period.
, j A) F2 \7 N/ _' l3 q>
- q' U8 p9 V8 t2 Y3 K% J( X> - Ability to configure a power saving Sleep Mode in the Transmitter by
/ w! u Y9 [. {! w> both software control and input hardware control.
' N, w- O, [: I+ V, g >
$ L1 Z0 @. {4 i$ ]9 P+ V8 h> In order to configure the units, we would need a way to make the
' H$ E; G ~7 M1 b. h> settings. This would preferably be from a computer terminal so that
- g. o6 ]4 q& S4 q. Y9 ]6 s> configurations can be saved or easily duplicated for production volumes.
5 U4 N/ a. y+ W! V > The units should be small and compact with shielding, and able to mount
z2 Q; O: F: T2 C > to a printed circuit board with header connector.
8 r5 @6 C1 f3 w>
2 |* i5 D. W% J > At this time, we are interested in samples of a pair of modems that
5 I _4 t) V% i2 I+ d+ c! S> might be similar to this proposed system. We do not expect that you
6 n( b* `' Y( j' O> provide all of these specifications at this time. I can describe our
0 j/ i, {! v' [> immediate application needs in the next email if this project is of
5 n& n% s: |& B) A3 p$ K > interest to you. Perhaps you can make the samples by those
& l1 F0 q+ i# a+ L5 g/ j) P7 D> specifications. This will allow us to test your radios before we move
. q4 m3 h, |$ k: C> forward. We are interested in your 900MHz radio to start.
- ^$ I$ Y3 O. p& d0 _/ n
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