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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 O5 M# b. Q* d/ k: ]/ \客户要求如下,如果哪家工厂可以做,请和我联系
# @, v. L$ D' W0 c! C ]3 [ l) b; m w > The application that we have in mind is similar to others that we commonly
4 ^" {+ I- C2 ^. c. J> have. If we were to pay for FCC approval, we would want to use the modem
7 z8 J4 y) V& L1 {8 [ > units in all similar applications under the same approval number.
% U8 F9 a3 A0 v. X: t4 w> Therefore, we would like to be able to configure the units to a specific
' G6 K# d3 l5 t0 d" \4 a> application. For the business that we do, this approach will yield more
2 N. I. y# g% H F> sales based on the same product and approval. We are interested in the
& c3 J( {! O! b) K > following specifications:
% y9 z% |/ b% t( _# B7 W. o>
( g0 y; T: H) C> - 2 inputs at the Transmitter with three possibilities;
& h4 f8 h! _% ?+ J5 _$ a> 2 analog
. l# g" H9 m3 c6 X8 c# b4 ?+ I > 2 digital
1 s9 F. t* l) V; C8 {( I- @& D > 1 analog and 1 digital
: b7 j' Q# I* b: E7 Z3 h>
9 t. ?9 z2 a# H# B I u4 P5 E> - 2 outputs at the Receiver with three possibilities to match inputs
7 F! A& a) y. B' w7 ^/ C >
) e% I8 N6 g V, I > - Ability to configure/define analog Transmitter input ranges through
7 i! }7 E0 k# k# X; D' k- u> simple programming method to correspond with full-range analog Receiver
* P3 `) I( A8 D3 s A6 o> outputs (0 - full voltage).
. g% V$ _! i+ |' K1 a>
' F# z0 e# v/ W> - Ability to configure and set sample rates for the inputs.
0 X1 t! A5 {+ ^( L6 f$ Y# J) u >
+ F" R5 m. Z! |0 ?9 [9 s> - Digital output on Transmitter that turns on during the sampling period.
$ \2 Y2 R% s; a7 B: S9 @. K>
# t I& t8 n% ~> - Ability to configure a power saving Sleep Mode in the Transmitter by
) L: h B& O* V> both software control and input hardware control.
( Q2 t/ l2 I0 d; j9 }>
* v0 \( |. _/ K& e1 z# D> In order to configure the units, we would need a way to make the
# N+ P% h1 c3 G1 R > settings. This would preferably be from a computer terminal so that
! M7 n6 ~+ _2 Y > configurations can be saved or easily duplicated for production volumes.
1 T6 B" i4 w8 E( C0 t* u> The units should be small and compact with shielding, and able to mount
2 F9 }6 _7 V* e( T > to a printed circuit board with header connector.
' G+ N/ J" @ W >
0 b' M3 |6 p9 B4 c5 x% H, s > At this time, we are interested in samples of a pair of modems that
: a9 }! x; V6 t6 S> might be similar to this proposed system. We do not expect that you
. @( \- Z9 V; A9 V5 A9 m* n> provide all of these specifications at this time. I can describe our
2 J0 D/ ~7 a+ ~5 R/ v: x0 h > immediate application needs in the next email if this project is of
8 t4 W- }1 }: W1 E; J- |> interest to you. Perhaps you can make the samples by those
% t% @; R! Z2 m$ {6 E > specifications. This will allow us to test your radios before we move
9 ?: ~/ Q2 q0 K1 z0 r1 }( F2 m' r > forward. We are interested in your 900MHz radio to start.
# A; v9 C# V* V3 t
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