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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

2 B. u5 c% X1 G% V% ~. \ 客户要求如下,如果哪家工厂可以做,请和我联系
& c, T4 f9 c- w" S5 R2 x' P > The application that we have in mind is similar to others that we commonly
9 `0 i% z6 ?& s! Z, p > have. If we were to pay for FCC approval, we would want to use the modem
1 ?* K6 `' b! o: g G > units in all similar applications under the same approval number.
7 q2 ?% g+ E) C+ a> Therefore, we would like to be able to configure the units to a specific
- D, i$ s# K8 u; Z> application. For the business that we do, this approach will yield more
6 \# c( a. d6 B9 r$ a8 D> sales based on the same product and approval. We are interested in the
# U: K6 {8 @0 F4 o2 ^# i > following specifications:
7 Y8 D2 o1 H6 y) {; T# L>
' `& _$ u% P' |) n( l, G( \ > - 2 inputs at the Transmitter with three possibilities;
1 g% M6 l# _6 }2 W4 O4 s > 2 analog
7 M* o7 {, D& J5 ^& m4 P% g- W5 D2 l> 2 digital
" |. l/ U* @8 Y6 e> 1 analog and 1 digital
0 k, t9 T7 K' y- [# f& Q; z >
' j2 E$ s0 b7 X( _! q> - 2 outputs at the Receiver with three possibilities to match inputs
; M \2 h+ {+ N# J: l5 T; ~>
- e8 E* T% ?: r8 h& I* M > - Ability to configure/define analog Transmitter input ranges through
" _0 q6 t& f- ?5 b > simple programming method to correspond with full-range analog Receiver
3 T% q6 N h% L0 k> outputs (0 - full voltage).
: {7 }4 i4 G2 M% T' R* V+ ^ >
) c" t3 m: d( O> - Ability to configure and set sample rates for the inputs.
) Z9 T- ?8 F) [ >
; R+ N0 x4 q$ f' @ > - Digital output on Transmitter that turns on during the sampling period.
B# w- a" `! d2 w5 O>
* o/ A: [8 k, d5 N4 C, @) ~% s > - Ability to configure a power saving Sleep Mode in the Transmitter by
+ \- g0 [( Y w0 ` > both software control and input hardware control.
* g( e3 x5 O1 u* M. u' f5 K >
1 Q8 W8 a& ~3 S3 \2 Y. z& m# Q > In order to configure the units, we would need a way to make the
* Q# J C: V/ d6 x/ K' `> settings. This would preferably be from a computer terminal so that
' K- L( w: a# N> configurations can be saved or easily duplicated for production volumes.
! |# Z7 d: b% @1 x* Y6 _1 W> The units should be small and compact with shielding, and able to mount
+ T1 G8 D4 g! e8 x* e4 h > to a printed circuit board with header connector.
. K8 }; g8 n2 Y5 [* A& l+ L >
+ [6 B5 d8 x, e > At this time, we are interested in samples of a pair of modems that
/ m! K: E0 C2 m; H > might be similar to this proposed system. We do not expect that you
' A2 e8 N Z7 b1 a7 Y" z) h> provide all of these specifications at this time. I can describe our
5 L3 v" N: X7 F! S% T > immediate application needs in the next email if this project is of
5 j5 y* n7 r6 S3 e5 y P3 v> interest to you. Perhaps you can make the samples by those
7 l/ E0 z) F+ {: j# }: E> specifications. This will allow us to test your radios before we move
+ C8 _2 w) o: B: [( w > forward. We are interested in your 900MHz radio to start.
; b) z6 e. {' }) l% |
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