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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

5 l) G' J0 g! O2 x6 H$ T客户要求如下,如果哪家工厂可以做,请和我联系
) g: }/ ~# m& M. w' O9 `6 n2 W> The application that we have in mind is similar to others that we commonly
1 L' Y0 Z% K1 l& h* G> have. If we were to pay for FCC approval, we would want to use the modem
$ ~ A# K, K! _0 T) I( m> units in all similar applications under the same approval number.
1 X- g, C3 G+ O: W5 u > Therefore, we would like to be able to configure the units to a specific
% M3 Z6 _& \$ {> application. For the business that we do, this approach will yield more
) F7 o& Q3 m" ?0 V0 \9 q> sales based on the same product and approval. We are interested in the
8 S, h: U2 m6 s$ v2 [# R( B+ M! G > following specifications:
- |+ D2 v1 W" v8 a! c2 \" \8 z! E/ V>
r! h! k4 }: s/ }3 H5 ~7 Y > - 2 inputs at the Transmitter with three possibilities;
( X% V. q. X" r) f. t> 2 analog
% g. o/ E! j: [( t E3 [> 2 digital
^( Y5 P2 B; v+ n8 x > 1 analog and 1 digital
4 W" `' H) v5 z2 O1 k, P>
/ w2 Y$ J; }" R( r- z> - 2 outputs at the Receiver with three possibilities to match inputs
1 [& X: F( Q$ d2 h/ V >
% B" ?+ e# c: B5 M > - Ability to configure/define analog Transmitter input ranges through
* R2 n7 ~% b) Y: K u > simple programming method to correspond with full-range analog Receiver
5 e) v1 w( @6 @( r6 U3 K& O% C> outputs (0 - full voltage).
, o+ e# l$ m3 K8 W6 u- L>
' u$ q2 k. }; N/ i > - Ability to configure and set sample rates for the inputs.
+ }" A# H7 G% n: C6 X# d >
6 c+ `. O; f/ R3 B! @. |7 s > - Digital output on Transmitter that turns on during the sampling period.
7 ~0 {, i% b) x! t>
6 b! Y1 a2 L5 T+ s& h1 m9 n# L' \> - Ability to configure a power saving Sleep Mode in the Transmitter by
4 O# L6 Q/ `) u6 C' j > both software control and input hardware control.
# ?) p- I) D2 C5 Y2 G>
1 t N; s9 M5 X; A" ]& x > In order to configure the units, we would need a way to make the
. M# n1 c9 o3 ~> settings. This would preferably be from a computer terminal so that
7 {/ Z9 c9 {, ^ > configurations can be saved or easily duplicated for production volumes.
' P5 D* b% H0 |4 W > The units should be small and compact with shielding, and able to mount
! ^0 K% k5 n8 A > to a printed circuit board with header connector.
, E$ G% _" R1 D8 u, D# r8 A>
8 V. |$ ^! M/ E/ A$ T) y > At this time, we are interested in samples of a pair of modems that
1 u: @% d; q y: Y5 e, t> might be similar to this proposed system. We do not expect that you
- Y$ X6 O C! X5 N( @> provide all of these specifications at this time. I can describe our
3 b- K! h; A9 W> immediate application needs in the next email if this project is of
7 M% ?" O r0 y3 v; L" O> interest to you. Perhaps you can make the samples by those
7 m1 E6 \; T" K" {> specifications. This will allow us to test your radios before we move
: g" o: i- u+ |2 d; z) n% T) c > forward. We are interested in your 900MHz radio to start.
8 K" N, R' \4 e2 E4 o8 B2 V
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