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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

8 `) O& r( V* J) u( `% v, ~8 d客户要求如下,如果哪家工厂可以做,请和我联系
0 f" v# E: N! V8 X) o% c O/ h> The application that we have in mind is similar to others that we commonly
% B7 H0 N) R5 @+ {6 O" y > have. If we were to pay for FCC approval, we would want to use the modem
% M9 A; l2 ^- H7 w> units in all similar applications under the same approval number.
5 {3 Y5 |* V4 x5 ^ > Therefore, we would like to be able to configure the units to a specific
+ ?0 T- K4 {1 ?9 G+ l> application. For the business that we do, this approach will yield more
; N- e+ ?* X; ]6 e > sales based on the same product and approval. We are interested in the
( X# [8 B% r) {* G* x+ `& a> following specifications:
$ d* m3 a9 G* C5 u- d) k! G) F>
$ V2 U" C5 _2 V) {, H* `9 p4 \> - 2 inputs at the Transmitter with three possibilities;
4 m* D1 u0 k+ l1 a1 N > 2 analog
) r; a! T# q! I ]& K> 2 digital
) M3 B, P8 ?6 u9 ^2 B/ O p> 1 analog and 1 digital
6 W! r: u8 H. S: j! G: W. i) r$ B>
; J3 s- ]3 q( f) n7 K: k; y > - 2 outputs at the Receiver with three possibilities to match inputs
$ R3 m c3 W: g: j8 t: _>
6 _ |. Z, h, {# v> - Ability to configure/define analog Transmitter input ranges through
( _- ^4 {9 a: o; y% G a# {7 ]> simple programming method to correspond with full-range analog Receiver
5 f; A6 a* n$ W+ C. {1 h > outputs (0 - full voltage).
( a- g; T9 d2 Y+ ?; \& t- J >
V/ C0 | K& u0 b4 i( h > - Ability to configure and set sample rates for the inputs.
3 F; r: x7 i5 p: T: Q7 [+ ~>
1 N( O8 v: u2 Q4 {> - Digital output on Transmitter that turns on during the sampling period.
7 [* T5 m6 W S2 x >
, d' }/ }% I! G5 I > - Ability to configure a power saving Sleep Mode in the Transmitter by
3 A q n9 l( ?$ m, p; O/ q% Q > both software control and input hardware control.
+ N( L8 c" d0 O7 x9 O>
# w& ~: g Q% j4 W9 A> In order to configure the units, we would need a way to make the
$ U8 E$ w) U+ h) T > settings. This would preferably be from a computer terminal so that
! R* q. ?( _ {5 H> configurations can be saved or easily duplicated for production volumes.
: J) E0 | `/ V% _ > The units should be small and compact with shielding, and able to mount
. t2 b2 V' O4 H4 n% G. s > to a printed circuit board with header connector.
$ `8 [: K5 u2 ~( Q >
5 x( O! b/ s' w4 ` } > At this time, we are interested in samples of a pair of modems that
" e" D8 Z6 Q3 m% D* [' r8 \5 b> might be similar to this proposed system. We do not expect that you
o3 g# D, I0 Q( ^> provide all of these specifications at this time. I can describe our
4 G8 g0 o# i2 K3 r> immediate application needs in the next email if this project is of
+ K9 n3 L/ P6 [" O* A6 D* E> interest to you. Perhaps you can make the samples by those
* W2 l0 i/ }0 ?9 ~> specifications. This will allow us to test your radios before we move
, [* q# _! {7 p+ f5 `> forward. We are interested in your 900MHz radio to start.
) J( d# x# o# j: X- Q! H. Z* D
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