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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

* g' L5 ^) V& M* A w客户要求如下,如果哪家工厂可以做,请和我联系
2 c* i% B" x) L$ @ q > The application that we have in mind is similar to others that we commonly
& b$ ^& u# ~9 s) f9 A8 A: b6 z, K6 k> have. If we were to pay for FCC approval, we would want to use the modem
" U2 V8 H- ? {1 j( ~/ U> units in all similar applications under the same approval number.
; a$ b5 H9 |4 W! U8 P$ A# }> Therefore, we would like to be able to configure the units to a specific
\. i& p8 i- E0 ~% j/ i> application. For the business that we do, this approach will yield more
% Z( j5 W7 P- t1 x7 T- V > sales based on the same product and approval. We are interested in the
+ b7 a0 ^* ]' R5 n s1 z) X > following specifications:
3 c+ X% a5 {( j+ ` o3 W8 j5 s>
3 B4 h( }7 v. A > - 2 inputs at the Transmitter with three possibilities;
1 w, X8 Q7 N% |: o& l6 D > 2 analog
+ M! X! T/ b* o n5 s$ u6 L' z3 h> 2 digital
6 {5 d% }: z1 m' v! V% F! ~1 M> 1 analog and 1 digital
9 E. C2 h, `" ] >
0 [' W" k1 ]+ ]3 M) c > - 2 outputs at the Receiver with three possibilities to match inputs
% N4 f/ F h0 x& j$ u5 V4 B' F >
6 O8 I' |& Z$ D0 [ > - Ability to configure/define analog Transmitter input ranges through
# v$ m+ S- \# g% ?' y& a% e> simple programming method to correspond with full-range analog Receiver
1 r" @4 ^$ |$ J" R2 B' u1 X > outputs (0 - full voltage).
* [$ J F* p) d) X7 L7 E>
, {# L& r, u1 }7 F > - Ability to configure and set sample rates for the inputs.
: x. O. B+ z2 n >
: d: o$ T0 y, t% @ > - Digital output on Transmitter that turns on during the sampling period.
! x, p3 K! a# d, X; Z3 ?$ u6 O. M>
: z% C0 |% `# B: I2 k" i" J2 u$ X> - Ability to configure a power saving Sleep Mode in the Transmitter by
4 h* U1 U$ _% c> both software control and input hardware control.
1 Z( m' L- p* _; ?. D3 D+ J |9 a>
$ \9 J G+ ^3 p' C' J7 }. { > In order to configure the units, we would need a way to make the
3 |/ t/ y7 U/ o3 h! K2 ~4 f O> settings. This would preferably be from a computer terminal so that
! Z' U6 h2 d$ U> configurations can be saved or easily duplicated for production volumes.
; j& c1 k$ r; G/ Z4 @0 [> The units should be small and compact with shielding, and able to mount
7 c! P0 _$ _5 I" n, l> to a printed circuit board with header connector.
1 H3 ~9 P0 o3 F { >
4 d2 l5 v: D0 G, V/ z> At this time, we are interested in samples of a pair of modems that
* z# ]/ L; J2 o2 l, @> might be similar to this proposed system. We do not expect that you
; T& G7 G: M7 d > provide all of these specifications at this time. I can describe our
9 q! u+ [. f( Z9 U" S3 b1 g# F+ H> immediate application needs in the next email if this project is of
( S E3 }; Q# j, @* G5 ~> interest to you. Perhaps you can make the samples by those
7 m, p' ]! L S2 T$ O; J! c9 S7 L+ ? > specifications. This will allow us to test your radios before we move
( x% B4 y+ w/ L9 n6 |7 ?> forward. We are interested in your 900MHz radio to start.
$ V5 Q# |# a! R9 O% E
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