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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 Z& F% ^3 Z& [; _" i! t 客户要求如下,如果哪家工厂可以做,请和我联系
8 J c: s: d& ~' @6 I4 i9 j$ c> The application that we have in mind is similar to others that we commonly
7 |# W6 f# x- y6 Z > have. If we were to pay for FCC approval, we would want to use the modem
: w, S. X' ?& {( o6 X+ Z > units in all similar applications under the same approval number.
! K" I3 G4 S0 W; Z8 `6 s- U. u > Therefore, we would like to be able to configure the units to a specific
6 R6 _0 T3 e6 l- S- a8 W > application. For the business that we do, this approach will yield more
" I+ b! S2 x- M5 z> sales based on the same product and approval. We are interested in the
9 ]; S; \2 H- ^$ t) k# X > following specifications:
- j8 D' ] }, I- ], s% b: a' T>
9 f; h1 P) D5 I" E > - 2 inputs at the Transmitter with three possibilities;
3 K, g( }$ X" {5 f7 o > 2 analog
4 D3 K# O( y6 D4 v% _) q0 G4 A f> 2 digital
* w3 i* w. L" E > 1 analog and 1 digital
8 p4 x/ A" {' J' A- e# O >
$ s" {, B$ D- |+ s! E& k7 K/ A> - 2 outputs at the Receiver with three possibilities to match inputs
6 x6 h U( t0 T >
8 [+ ^3 b. M& K; Z9 p> - Ability to configure/define analog Transmitter input ranges through
, U3 m& A0 Z8 T> simple programming method to correspond with full-range analog Receiver
/ J T$ Z7 y5 w+ D) H> outputs (0 - full voltage).
$ R2 [9 L$ Y4 n* b>
. Q& `; `- \$ i% t( | > - Ability to configure and set sample rates for the inputs.
8 k0 X9 x* c) w* U >
# P3 k, h7 L+ z0 o- `2 r > - Digital output on Transmitter that turns on during the sampling period.
9 n* S& L, j$ P. {0 j >
$ x. @% t6 D; [9 A2 Q# z9 W> - Ability to configure a power saving Sleep Mode in the Transmitter by
9 {" d$ \, x& a6 k> both software control and input hardware control.
0 ^3 ~/ o7 X1 M: z/ S4 b( C$ Y>
( W( T2 z' |* F2 l > In order to configure the units, we would need a way to make the
% T6 ^7 u, f5 k F% E" S0 o > settings. This would preferably be from a computer terminal so that
# Q& m4 U7 Y6 @8 k3 Q > configurations can be saved or easily duplicated for production volumes.
+ X) y/ ~* @+ R' o/ |/ p' \& G> The units should be small and compact with shielding, and able to mount
Y# ^" V" m3 ], F4 b> to a printed circuit board with header connector.
2 z) B% i" N" K: a* Y& O >
( W! W) m! R# S6 L: ?! x$ E > At this time, we are interested in samples of a pair of modems that
; p R/ f, Y0 h$ Z > might be similar to this proposed system. We do not expect that you
* D# ^3 \: @9 h* T > provide all of these specifications at this time. I can describe our
7 j0 N: v$ v% I3 v4 s1 x" i> immediate application needs in the next email if this project is of
! A- L8 U4 a& `6 @/ p1 G% B> interest to you. Perhaps you can make the samples by those
( {0 C: m! X* W5 h> specifications. This will allow us to test your radios before we move
# z* a0 O- ?$ D9 S" |> forward. We are interested in your 900MHz radio to start.
2 O- ]0 V8 O- G: L. k; {
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