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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( I+ i% d. \" w& }6 l6 [ 客户要求如下,如果哪家工厂可以做,请和我联系
# S2 J I1 G1 a- L; [+ p _> The application that we have in mind is similar to others that we commonly
+ S. \; a& D2 e- @) s( B* K> have. If we were to pay for FCC approval, we would want to use the modem
5 ^6 [' }, D; @' o> units in all similar applications under the same approval number.
; V7 I5 c, r: g6 u8 s> Therefore, we would like to be able to configure the units to a specific
* W+ N- a X% Z$ g1 S9 F> application. For the business that we do, this approach will yield more
7 s. Z: n( J1 U+ M C > sales based on the same product and approval. We are interested in the
0 H$ p( X7 m6 k> following specifications:
3 K1 _* S7 U( Y( }2 }: w6 Z >
5 i4 \; I2 o0 W$ B2 } > - 2 inputs at the Transmitter with three possibilities;
- C0 O0 @3 S* e. ?: }- t; } ^> 2 analog
. E) c* n+ r4 h, X. b- a j> 2 digital
1 g6 \+ G. T! C/ h* T) Y2 B > 1 analog and 1 digital
$ z8 B8 n9 s0 _8 t>
' S/ s8 R! ^" m6 y1 N! e: I" v* H( M> - 2 outputs at the Receiver with three possibilities to match inputs
3 d4 t) l1 `& h- b: [/ i. X4 g>
% T8 c) B4 \" p; ^> - Ability to configure/define analog Transmitter input ranges through
4 I+ ?# E8 z6 s8 L> simple programming method to correspond with full-range analog Receiver
. O. G: ~" ~$ A+ J+ \1 A> outputs (0 - full voltage).
$ ^ J4 [, y, t+ D9 B0 G& t>
' W. f( B: v7 O- f) t' R > - Ability to configure and set sample rates for the inputs.
% l( u! f4 w2 |, M >
& X9 q( o3 |* P3 l( H H > - Digital output on Transmitter that turns on during the sampling period.
' ?8 U% d7 _% b& r >
0 Q& Y$ g' R; x! t' f> - Ability to configure a power saving Sleep Mode in the Transmitter by
0 l9 o- j W& l> both software control and input hardware control.
u2 U/ i9 j6 h% A >
- t3 Z0 {) i1 E5 N8 @' u: P > In order to configure the units, we would need a way to make the
& a/ Q& ~ W5 ?4 g ?% I* e" L [ > settings. This would preferably be from a computer terminal so that
& I4 P" Y" I9 U' V# S8 K, z: J5 N > configurations can be saved or easily duplicated for production volumes.
/ E. ^6 {3 ^: x) f0 _> The units should be small and compact with shielding, and able to mount
0 [, y5 [3 j/ R; E1 a8 G > to a printed circuit board with header connector.
; o/ N! }$ g9 K2 w i>
+ M2 H9 Y: i& }1 e; K> At this time, we are interested in samples of a pair of modems that
8 E. _ F' ~& b( _7 t" ]4 N > might be similar to this proposed system. We do not expect that you
0 \7 m6 o- x8 q% F4 v0 K1 C# P- q > provide all of these specifications at this time. I can describe our
6 h$ \5 r8 T: A1 s# N0 t V > immediate application needs in the next email if this project is of
9 @8 o: \6 U+ q/ N. d) c> interest to you. Perhaps you can make the samples by those
3 ^3 @7 F6 Q8 u0 M" D+ Y' u5 ^$ M" O> specifications. This will allow us to test your radios before we move
5 _3 p, P1 E- A& G > forward. We are interested in your 900MHz radio to start.
' @/ v: U1 A9 U" U: e4 i; ?
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