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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

; t0 g( u# ]" i# u* E# i* h客户要求如下,如果哪家工厂可以做,请和我联系
' u3 s+ _2 ]! H. b > The application that we have in mind is similar to others that we commonly
4 |' I7 c+ F: \4 Y4 o> have. If we were to pay for FCC approval, we would want to use the modem
& g& H M: c" f" G> units in all similar applications under the same approval number.
4 b3 O4 c/ z, v& b> Therefore, we would like to be able to configure the units to a specific
# u* U) J0 p. ]9 b> application. For the business that we do, this approach will yield more
' V$ P1 o; @) s5 s j1 j* h> sales based on the same product and approval. We are interested in the
: Q- ~2 |$ n' q$ ?3 m > following specifications:
. k+ C, I% b [. P3 w >
4 n) x' h! H; S! Z > - 2 inputs at the Transmitter with three possibilities;
1 S0 J, k, z& j/ c# i3 w > 2 analog
5 d3 w4 \ U1 a+ y8 ~% ? > 2 digital
& ?4 l C" t/ G' d5 y( m& \> 1 analog and 1 digital
# [; Y9 [- M' q& W6 l >
+ p7 e3 ]" c( X6 b% |> - 2 outputs at the Receiver with three possibilities to match inputs
* v7 Y0 N+ T7 o& D8 d >
% W( b5 @+ n% r8 a> - Ability to configure/define analog Transmitter input ranges through
2 A9 S6 j$ S1 F2 \, p) a* S> simple programming method to correspond with full-range analog Receiver
0 \7 H+ u3 T# c/ x > outputs (0 - full voltage).
* f- r; j. c5 L( `9 `7 ~; M, E9 ] >
( y7 C/ h, P$ Q0 R, ^ k > - Ability to configure and set sample rates for the inputs.
# K. K4 b- e6 f0 {9 A! t>
, K4 y2 x w! N/ S/ M" l/ B> - Digital output on Transmitter that turns on during the sampling period.
# G: t W7 d6 j>
5 _0 s* a; O0 g0 F' v% ~> - Ability to configure a power saving Sleep Mode in the Transmitter by
' t' Y. q/ L# q > both software control and input hardware control.
1 L% h( W7 g3 S4 x. X>
$ D- }) i- {9 [' k9 B3 g/ C: j( } > In order to configure the units, we would need a way to make the
4 M& r U8 e/ I8 G> settings. This would preferably be from a computer terminal so that
) s: t. {8 s% q. g > configurations can be saved or easily duplicated for production volumes.
7 ~) |: x* U9 l o> The units should be small and compact with shielding, and able to mount
4 ^$ e" k7 m6 V> to a printed circuit board with header connector.
/ u0 M7 t% J8 u% B- w6 u>
) [- j7 L% _3 M9 ?4 K$ \" H> At this time, we are interested in samples of a pair of modems that
# i. r, _* _$ _ o! Z+ l > might be similar to this proposed system. We do not expect that you
5 ?- A+ O' ?* i$ J2 H& Q0 {> provide all of these specifications at this time. I can describe our
) }4 r s5 }2 Z" O > immediate application needs in the next email if this project is of
9 p+ ^7 x% Q- l/ n > interest to you. Perhaps you can make the samples by those
9 n0 Z; {: L7 R0 t! v> specifications. This will allow us to test your radios before we move
) @4 E! V; n1 B* P> forward. We are interested in your 900MHz radio to start.
( k1 V! l( ~7 i7 J$ _- c! @7 r. P/ z
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