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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

" L) `9 I8 ~- I, F客户要求如下,如果哪家工厂可以做,请和我联系
( `( l/ @2 y0 ~7 @ > The application that we have in mind is similar to others that we commonly
) Z. q( Y1 d9 } > have. If we were to pay for FCC approval, we would want to use the modem
+ U4 r0 e G; O> units in all similar applications under the same approval number.
0 g4 ?) j$ N0 T3 b > Therefore, we would like to be able to configure the units to a specific
8 a$ C& n& i" {1 C1 r" \( L8 }1 `> application. For the business that we do, this approach will yield more
7 C" R& V6 a! y. a> sales based on the same product and approval. We are interested in the
$ G4 g, I: f6 p% t- n9 q3 ^! w > following specifications:
# j { C" C" q2 |( D# \ >
* j* ?( t& [7 J s > - 2 inputs at the Transmitter with three possibilities;
! u0 w2 S" ~% r3 C> 2 analog
D, i+ k: l0 g' F% f! v- Q9 ^% r! J > 2 digital
- F- I4 G c2 D > 1 analog and 1 digital
0 S6 [2 J' ~8 H, e0 z& b; j >
! w% ~' I I( e1 \8 G/ u0 R! p4 [> - 2 outputs at the Receiver with three possibilities to match inputs
% f. r6 L0 X# r) U: W>
1 ^/ y5 z6 q% @! r* v. C> - Ability to configure/define analog Transmitter input ranges through
4 J' s4 C- [* P7 i% s, }: c> simple programming method to correspond with full-range analog Receiver
* f' C( a1 @) x8 L5 j% o > outputs (0 - full voltage).
y2 M' ^; p; W# u; N) N) r >
1 h8 g1 }- g/ A' a" L! D# w> - Ability to configure and set sample rates for the inputs.
2 o& g1 b; n( _. O* _/ F0 f >
/ ]/ u: A1 [) ^+ `# d> - Digital output on Transmitter that turns on during the sampling period.
& Z$ k* c2 n0 w5 U" b) y$ g/ C>
3 Z- ?0 a N; N> - Ability to configure a power saving Sleep Mode in the Transmitter by
0 D8 S' j0 G' n$ n9 @% {> both software control and input hardware control.
! \4 U9 @. ?+ G>
0 n$ v# R' x2 j7 b! I > In order to configure the units, we would need a way to make the
7 T* L1 N g- d! p3 }5 ] > settings. This would preferably be from a computer terminal so that
) X5 P5 ~* k" }2 Y) X > configurations can be saved or easily duplicated for production volumes.
" m" X. D/ [# R5 S > The units should be small and compact with shielding, and able to mount
2 r' u, O1 g9 i* x> to a printed circuit board with header connector.
8 @5 t) ?3 n- P9 S; c" f >
# v+ r; w$ e( x( y> At this time, we are interested in samples of a pair of modems that
3 g( \2 r& K ]. J" z# f> might be similar to this proposed system. We do not expect that you
7 |( K5 M# g0 z$ b* f/ b > provide all of these specifications at this time. I can describe our
8 z9 N- C6 q2 P6 Y5 K) h0 g% n9 c> immediate application needs in the next email if this project is of
% F6 \: E3 v8 s+ o4 P6 ?: n* W, n > interest to you. Perhaps you can make the samples by those
; }8 R+ x- U3 R2 z/ Q> specifications. This will allow us to test your radios before we move
8 ?) m: e0 f2 d- \> forward. We are interested in your 900MHz radio to start.
* s. J% f" R2 N* x6 v4 P% L
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