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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

. i. q, I% E# Q! v客户要求如下,如果哪家工厂可以做,请和我联系
! Y# w& E# {0 F1 }, }3 W& M > The application that we have in mind is similar to others that we commonly
2 ]- T# n3 @8 w2 c+ [ j* a. G > have. If we were to pay for FCC approval, we would want to use the modem
" s7 P2 }* R# w& d8 K1 P> units in all similar applications under the same approval number.
# W7 ?2 L+ l3 [( i- p g$ |7 b; k> Therefore, we would like to be able to configure the units to a specific
0 ` C8 S. b/ @, f$ j > application. For the business that we do, this approach will yield more
0 I( h% _& e$ ~# K1 _ p4 E8 ?> sales based on the same product and approval. We are interested in the
# [" ^) d& w" \3 `2 Y6 x> following specifications:
3 ^7 W, u, y1 D6 N >
: n! Y6 f0 o( K> - 2 inputs at the Transmitter with three possibilities;
- q, x' L% B7 ?9 o> 2 analog
- h+ n- `, o5 F> 2 digital
( l# T. j7 H7 L0 c, ?7 A > 1 analog and 1 digital
Q+ l, i2 y Y8 G& p>
+ F% G) m Z6 v3 `$ y/ l! U > - 2 outputs at the Receiver with three possibilities to match inputs
$ ]+ d3 P) j7 a >
- t2 R9 y P/ _5 ~* s5 d B6 q > - Ability to configure/define analog Transmitter input ranges through
: M+ C1 ~/ s. L > simple programming method to correspond with full-range analog Receiver
" Z+ O4 ` |* H$ X5 B0 i: ^, r8 X > outputs (0 - full voltage).
3 _/ @: `/ c. v4 Y* |% l>
% M. o& }3 S3 C' x4 \> - Ability to configure and set sample rates for the inputs.
6 u, \/ C+ I( R2 X1 T8 f >
/ |9 k0 n1 V0 N. d5 G > - Digital output on Transmitter that turns on during the sampling period.
! O! I4 f8 ]" y6 a) \) w >
2 K7 x& L( H5 w> - Ability to configure a power saving Sleep Mode in the Transmitter by
! b7 D# }9 I+ r I! q- Z& p n, B > both software control and input hardware control.
! b; P3 m7 s- f. b1 u V$ W1 K>
2 v; t. P* o: e" v' u% D > In order to configure the units, we would need a way to make the
2 V- M* W8 V; |3 U > settings. This would preferably be from a computer terminal so that
3 v1 l* [3 r7 J > configurations can be saved or easily duplicated for production volumes.
; ~% w- P0 j9 w4 t/ A9 _& | > The units should be small and compact with shielding, and able to mount
0 l! a8 {: _; P' o> to a printed circuit board with header connector.
2 N$ a. g- j$ w>
$ E+ U0 D' U: A" B > At this time, we are interested in samples of a pair of modems that
7 b5 _; ]& i- R4 p% t" S4 K> might be similar to this proposed system. We do not expect that you
: R4 {/ c% s: M2 A. X$ m; M; d> provide all of these specifications at this time. I can describe our
$ H# N% v! f& p7 O) L > immediate application needs in the next email if this project is of
: K. a* }2 Y: i- c( {> interest to you. Perhaps you can make the samples by those
1 q7 ]; J2 ~8 f> specifications. This will allow us to test your radios before we move
( L- b: D* A; H: d' s! @ > forward. We are interested in your 900MHz radio to start.
" H- u. p3 N7 e# L+ L+ c
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