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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

' ~) x+ z4 I/ A4 A3 O0 V客户要求如下,如果哪家工厂可以做,请和我联系
' s5 a: B( w5 k/ c/ L> The application that we have in mind is similar to others that we commonly
3 l; K! V) `% j$ u7 f > have. If we were to pay for FCC approval, we would want to use the modem
& c. ?7 W6 p' ?$ k7 H > units in all similar applications under the same approval number.
+ o: E0 @: E2 [4 K! X1 [> Therefore, we would like to be able to configure the units to a specific
# r H' \* o6 r1 ?! w> application. For the business that we do, this approach will yield more
+ r9 h f9 k2 p# M! J> sales based on the same product and approval. We are interested in the
; j/ j7 h. w' U> following specifications:
! @* l3 k% k H5 A0 s >
5 h4 W/ j# R* ~ > - 2 inputs at the Transmitter with three possibilities;
1 }) j t) G d1 _2 y B; p2 I> 2 analog
. c$ G4 p. G6 `% ? o" u> 2 digital
5 b- S& `+ G6 I Z; f# u > 1 analog and 1 digital
7 b z* r& n6 A' h6 ~, @% B>
& H$ r: }0 k* Z" E3 V> - 2 outputs at the Receiver with three possibilities to match inputs
; Y: r" Z7 c, K4 K >
8 d) `5 n* ^# p$ }8 ^+ q > - Ability to configure/define analog Transmitter input ranges through
* H# O1 d' r( l) n S# B> simple programming method to correspond with full-range analog Receiver
' T0 A0 x9 Q. G5 c) e > outputs (0 - full voltage).
1 I& L& A& o; S4 G>
+ l3 q2 ?; O/ g8 _ > - Ability to configure and set sample rates for the inputs.
+ U5 m4 m' h& F; J8 c( i>
3 K5 y% V' x. |$ |. f7 e > - Digital output on Transmitter that turns on during the sampling period.
2 J4 G. H' a0 h; h6 D, M" C) @ >
3 G6 C3 q* m6 D+ i > - Ability to configure a power saving Sleep Mode in the Transmitter by
+ X3 ^- `2 b- p2 v > both software control and input hardware control.
# T! Y5 Q7 C- F4 I>
" @5 ], G& u4 t1 c% l> In order to configure the units, we would need a way to make the
- L6 c, O; X) ]! \ r8 Y > settings. This would preferably be from a computer terminal so that
5 }0 P' j9 E# a > configurations can be saved or easily duplicated for production volumes.
X% Q% ]* B% r* X> The units should be small and compact with shielding, and able to mount
7 W. H, s0 h4 T/ I- H1 @ > to a printed circuit board with header connector.
) {6 ]9 ~ j" \ _& B. z9 A+ A >
S: o# R' E4 X* |% B- q2 r > At this time, we are interested in samples of a pair of modems that
! E$ N/ W0 u, `: y1 m5 R> might be similar to this proposed system. We do not expect that you
$ Z" ~! L+ \5 l- l! L5 v> provide all of these specifications at this time. I can describe our
, Z& Q, k7 U# Q' e0 I) `7 O > immediate application needs in the next email if this project is of
% S3 H3 e4 @, Z. R" a> interest to you. Perhaps you can make the samples by those
. b* H! P/ U& H. Q' |4 D > specifications. This will allow us to test your radios before we move
) a1 n( o3 {9 ~9 ^& [* ~/ D" ` > forward. We are interested in your 900MHz radio to start.
6 v Q4 ^2 {) [0 o3 h7 b
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