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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

+ B$ f: r: `& h d& n" H 客户要求如下,如果哪家工厂可以做,请和我联系
: e @. n( \0 v0 o > The application that we have in mind is similar to others that we commonly
/ u3 \! O7 q9 I1 q> have. If we were to pay for FCC approval, we would want to use the modem
9 A* `$ j: ], W1 ?' d > units in all similar applications under the same approval number.
: h0 V9 ^& r/ R! z5 g > Therefore, we would like to be able to configure the units to a specific
7 j8 g( g. X4 e> application. For the business that we do, this approach will yield more
0 t1 s& _/ q; I8 i$ N8 T) J > sales based on the same product and approval. We are interested in the
& U' V) {, m& X; d" B* a3 f > following specifications:
7 E. u) l- W7 b H5 B0 [>
% ?# P. N+ {5 [/ D; q > - 2 inputs at the Transmitter with three possibilities;
1 R# {0 [, ~5 W# P# E# m1 e > 2 analog
4 \7 u' e8 }0 U> 2 digital
6 R# a) ]# B" `7 P5 g> 1 analog and 1 digital
; j4 t' C+ |& q: P- r5 ` >
( W. o1 U2 E. W, O% Q1 y0 U! Y> - 2 outputs at the Receiver with three possibilities to match inputs
+ B( F. H. A; y+ e% d* l>
* [) U7 m1 Y* N& A4 x> - Ability to configure/define analog Transmitter input ranges through
; |0 I, \6 t0 W( H> simple programming method to correspond with full-range analog Receiver
, @5 K$ H3 l9 m! V% ]; c$ l! @> outputs (0 - full voltage).
2 f0 |- {% P: @8 z, X/ v>
' i3 a+ ]0 f( k" | r2 U> - Ability to configure and set sample rates for the inputs.
6 f U N1 ? p' G" S+ s >
# q6 Z% T3 A# [ K9 F. B> - Digital output on Transmitter that turns on during the sampling period.
4 W7 M5 X) v" N! D) D1 l6 c >
, M7 M: m& T8 x, _: I+ N8 f9 E> - Ability to configure a power saving Sleep Mode in the Transmitter by
# K; \3 V& J) t, j> both software control and input hardware control.
W9 d4 h8 r* r>
* ~& M1 X6 E3 U4 D# _" M > In order to configure the units, we would need a way to make the
% `# y% B) k& d> settings. This would preferably be from a computer terminal so that
: ]9 g) `/ R9 [6 a3 r9 a> configurations can be saved or easily duplicated for production volumes.
E" j* e' C7 }+ p > The units should be small and compact with shielding, and able to mount
; ]8 J7 D7 I# s, d8 R > to a printed circuit board with header connector.
, v, d+ Q8 Z7 S+ K6 s >
5 y; B" v @( \; v" \ > At this time, we are interested in samples of a pair of modems that
' W; q* `5 L/ j" w > might be similar to this proposed system. We do not expect that you
1 e# K% @4 z+ `> provide all of these specifications at this time. I can describe our
" H* W5 v% o4 y( ?0 B* d( p# ~ > immediate application needs in the next email if this project is of
, e r& l" H. k2 k% b > interest to you. Perhaps you can make the samples by those
. u4 _6 O( d$ j3 q' w4 e> specifications. This will allow us to test your radios before we move
6 U8 Y* ]# \2 I' X- m8 I$ ` [> forward. We are interested in your 900MHz radio to start.
3 G, x0 ?, n7 A0 u" Q( t
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