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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

9 o% ?+ b' W6 q, Z2 I# [3 N7 _1 J- ^ 客户要求如下,如果哪家工厂可以做,请和我联系
% \0 x7 D3 z! u+ Y7 ]5 p4 x > The application that we have in mind is similar to others that we commonly
1 y2 }. L- ^1 Q: ~ > have. If we were to pay for FCC approval, we would want to use the modem
9 \ m9 {& W) c9 X+ n > units in all similar applications under the same approval number.
2 I$ p+ f7 x. j* _% I> Therefore, we would like to be able to configure the units to a specific
% ?5 K9 H* C% w; b> application. For the business that we do, this approach will yield more
" S; q9 J& ~- h& p > sales based on the same product and approval. We are interested in the
$ B" A4 W, M0 E! l7 @4 |: w> following specifications:
( ~8 D7 s( p& h$ J& Y6 @>
9 }! S9 W0 A, s$ c2 N> - 2 inputs at the Transmitter with three possibilities;
0 p6 u& T" b' ~1 c/ S- ~0 C > 2 analog
$ _, x* n* Z" T8 K% v> 2 digital
/ j# k$ j! \: Q; v > 1 analog and 1 digital
4 x4 V; H9 S, c# ~' G' A >
6 T w9 h$ Q7 a: L > - 2 outputs at the Receiver with three possibilities to match inputs
4 Z Q- A: t( f* h>
B2 Q+ w& E7 Z% k$ F# ?% P( I4 W> - Ability to configure/define analog Transmitter input ranges through
0 O* i8 b, t5 j; l > simple programming method to correspond with full-range analog Receiver
3 z d2 u3 Q! j! w! x# ]0 T > outputs (0 - full voltage).
- a. A1 v+ Y" F3 c1 s>
) N1 q" [+ q1 H3 R2 F" _4 D > - Ability to configure and set sample rates for the inputs.
) Y9 {9 h$ z+ f0 N4 ~1 z/ F9 Z$ V>
! f+ A1 M2 r* n > - Digital output on Transmitter that turns on during the sampling period.
1 f& Q" l! s& k1 l. o% A( z' d* @>
( {* t1 u( I4 H( p+ y> - Ability to configure a power saving Sleep Mode in the Transmitter by
; ~4 H- P4 Q. C/ D4 n& }) _) ^) S > both software control and input hardware control.
5 T, ~( M( z! x8 f; k& W* A5 w>
F: H% r# V* z2 i; u2 T3 K > In order to configure the units, we would need a way to make the
8 L; }0 e: Q% Z$ {4 N> settings. This would preferably be from a computer terminal so that
: K* v2 J4 `& e, s! k; F6 k2 ^ > configurations can be saved or easily duplicated for production volumes.
- l P- ~6 R0 L > The units should be small and compact with shielding, and able to mount
: z7 z1 ?! I$ U3 {. D8 x. a5 V> to a printed circuit board with header connector.
+ y# \% t7 ]. V>
# ]5 K* J; r3 v3 M. S > At this time, we are interested in samples of a pair of modems that
$ E5 C5 a, W# [* i> might be similar to this proposed system. We do not expect that you
2 @4 g- g4 {- h! J1 x: b [> provide all of these specifications at this time. I can describe our
% W+ Y1 } x0 I' x) _$ M8 v# b& ^9 J > immediate application needs in the next email if this project is of
H& l. v/ h1 `7 k1 ^2 S, l > interest to you. Perhaps you can make the samples by those
2 y, C+ h" \' _# S+ o > specifications. This will allow us to test your radios before we move
7 x0 ?! N, r d& r7 b, v- M> forward. We are interested in your 900MHz radio to start.
" S0 b+ H6 l& b# v3 E' E- B
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