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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

" |, Z( o: f6 K 客户要求如下,如果哪家工厂可以做,请和我联系
8 B; L% _* s! E j > The application that we have in mind is similar to others that we commonly
8 h: L6 Q) M& l' a9 Q > have. If we were to pay for FCC approval, we would want to use the modem
! P+ g. f) V4 n$ V, Q# L3 A- v> units in all similar applications under the same approval number.
0 v4 j8 o, p# ?% f) T5 s, ]> Therefore, we would like to be able to configure the units to a specific
3 o7 |, b! `+ W1 ^, Z> application. For the business that we do, this approach will yield more
1 c! k$ ]3 \' |7 z' k> sales based on the same product and approval. We are interested in the
: z9 n4 [4 O9 j& j+ b- b > following specifications:
& X% X+ O3 _$ ^0 M3 b# B% f >
1 z0 f$ M9 j* b$ b0 d+ P > - 2 inputs at the Transmitter with three possibilities;
" m8 L2 y- W$ n# p6 k* y) W. W > 2 analog
3 a& A: _! g" \7 ~1 {# e> 2 digital
4 q, X# b% a7 Y1 [( H > 1 analog and 1 digital
) T/ ~' ?7 h& T8 ^- ? >
2 W- r9 n8 G% _" z- |6 ?> - 2 outputs at the Receiver with three possibilities to match inputs
5 S0 l$ I2 q! @9 U9 N7 M >
1 }' o( p, f1 }* ]$ j5 R> - Ability to configure/define analog Transmitter input ranges through
! u( e" F- h* R, b; X, q; f > simple programming method to correspond with full-range analog Receiver
) r( {8 |: R0 ~, l: ?/ W" V9 y> outputs (0 - full voltage).
V& `5 ] E l. k" d>
1 l1 ^" P5 `, J) F> - Ability to configure and set sample rates for the inputs.
7 h* e/ N- l ~2 ], u# v >
4 e( H1 a. l% W5 X- P+ W7 R! u> - Digital output on Transmitter that turns on during the sampling period.
$ b5 i# q9 J) U; i, k5 a >
9 ]8 x- a5 e) n> - Ability to configure a power saving Sleep Mode in the Transmitter by
3 k- K* B: u: B" L$ i> both software control and input hardware control.
3 U l3 e( \8 K$ Q2 d: A; D' n* z >
5 K4 T* c1 i# F! [# h }' H> In order to configure the units, we would need a way to make the
9 y R) x B4 {7 M6 W! i7 a& |> settings. This would preferably be from a computer terminal so that
* K9 {. [2 R, d! T: }; ~% z' o> configurations can be saved or easily duplicated for production volumes.
! @: q+ u6 g. \4 ]/ z; U > The units should be small and compact with shielding, and able to mount
4 _6 |+ M# n0 V% @! H7 e> to a printed circuit board with header connector.
0 v. t/ J* {: s9 D' D+ I >
: x3 L* e" R6 e5 I" x& z > At this time, we are interested in samples of a pair of modems that
0 b1 l1 n" h( y) \, [3 T7 Q> might be similar to this proposed system. We do not expect that you
; ?& }0 c1 O, _> provide all of these specifications at this time. I can describe our
, Q. t5 R% w. f p> immediate application needs in the next email if this project is of
3 M0 [9 g4 c, F' i( k2 x> interest to you. Perhaps you can make the samples by those
& B9 t. E" H% ]" u- P7 t# K6 d% W$ Q9 ? > specifications. This will allow us to test your radios before we move
% c0 g7 t% n9 U& [( i) X> forward. We are interested in your 900MHz radio to start.
, J' c+ K% R* p+ K# d! y3 L
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