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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

8 d4 I% W. x5 |" L A8 U7 P% T 客户要求如下,如果哪家工厂可以做,请和我联系
7 r1 y" d% s! c> The application that we have in mind is similar to others that we commonly
$ t' n$ y1 b, w: `* @$ a> have. If we were to pay for FCC approval, we would want to use the modem
: B N- ]7 b' X' f) U > units in all similar applications under the same approval number.
8 r7 T5 v" K# ?; _ > Therefore, we would like to be able to configure the units to a specific
- b+ v! R) r& I > application. For the business that we do, this approach will yield more
% u8 b1 R; }! h/ C9 z> sales based on the same product and approval. We are interested in the
1 |" y/ l$ {- D) r4 n/ L4 j > following specifications:
) Y7 a, c1 J5 j0 ^+ E >
3 U3 p* j' L4 y* ?' m7 g% h# l> - 2 inputs at the Transmitter with three possibilities;
6 U& @6 [: l* t1 I$ F/ b" ~5 p! T) j> 2 analog
' k* D. ?# I7 ^6 `5 a& W > 2 digital
! f p3 h7 u" G' T; S( @> 1 analog and 1 digital
. F( h9 A* D2 E+ `0 m- P >
4 C( q+ R9 g% T# N5 ^1 y > - 2 outputs at the Receiver with three possibilities to match inputs
$ m) r" _6 x0 D' x' e: K* o) y>
% ~8 a% L: @& @2 R7 N" K > - Ability to configure/define analog Transmitter input ranges through
& ^5 C! f. f9 e9 X7 f n1 t> simple programming method to correspond with full-range analog Receiver
) g1 H1 w: s, o0 i$ W$ G> outputs (0 - full voltage).
+ p, B% ^2 k/ E% j4 a>
' _' u) C2 Q' O) @' L2 @+ R > - Ability to configure and set sample rates for the inputs.
Z) m4 M% r, w# j>
' o# A9 i2 L+ @3 c> - Digital output on Transmitter that turns on during the sampling period.
1 l, }* m% s6 l0 G' f4 R$ l6 p' o>
; P; s: V' ^0 b/ N" h > - Ability to configure a power saving Sleep Mode in the Transmitter by
. ? j8 S: o) B2 h. \: q7 c5 f$ g> both software control and input hardware control.
" ]: b$ e' B) R* T >
( ^, P t2 ] Y, H3 Z y1 ]> In order to configure the units, we would need a way to make the
' C4 J W. {7 {3 C2 k* ~. \& G> settings. This would preferably be from a computer terminal so that
; b3 P7 p& M+ y( i! Z1 F$ v > configurations can be saved or easily duplicated for production volumes.
/ x) j7 Y3 Q; O > The units should be small and compact with shielding, and able to mount
" I# ^" @4 V5 I1 } `+ Y, h > to a printed circuit board with header connector.
1 \ ~/ a# a( k; ^1 p$ @; T>
- z) n, ?) i/ @* p3 D5 | > At this time, we are interested in samples of a pair of modems that
6 p& v! q1 p8 M2 _( Z > might be similar to this proposed system. We do not expect that you
) S7 S$ s6 f0 Y4 B# |8 h! H > provide all of these specifications at this time. I can describe our
2 r7 A( G; C% W5 y1 A> immediate application needs in the next email if this project is of
% | H0 p+ r% p4 ^> interest to you. Perhaps you can make the samples by those
9 {, [9 h3 Q8 f1 R% ]> specifications. This will allow us to test your radios before we move
& i$ m& e8 p2 _ > forward. We are interested in your 900MHz radio to start.
1 z9 G8 X* c) L) l9 s+ V U1 }
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