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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

$ G1 N: \" A! m% n# @; \. @客户要求如下,如果哪家工厂可以做,请和我联系
3 n7 U, y* @/ L8 L; r> The application that we have in mind is similar to others that we commonly
1 h8 ~# X- [3 \9 }, p( h) M> have. If we were to pay for FCC approval, we would want to use the modem
2 f- I1 E6 |$ ^. p' H0 p > units in all similar applications under the same approval number.
3 w+ E# E) \5 a$ [ > Therefore, we would like to be able to configure the units to a specific
: t9 i3 }; [' q > application. For the business that we do, this approach will yield more
6 T$ v, x1 C5 L! Q' ]) _> sales based on the same product and approval. We are interested in the
6 Y- i; h6 d/ d6 f3 t2 Q3 e% M > following specifications:
" I8 a8 D. Y4 n' X >
$ K8 g5 `+ v) k > - 2 inputs at the Transmitter with three possibilities;
2 D5 `- p; ]* E* O4 ~, |% \ > 2 analog
5 z3 @& [1 d7 e- M& B+ ? > 2 digital
; a/ @9 d2 x. F* h- _, s> 1 analog and 1 digital
' ]5 e' V1 ]8 }: g* K >
* i- E+ F2 ^8 L> - 2 outputs at the Receiver with three possibilities to match inputs
$ F7 ^2 i$ E( ~. v4 i* ?>
" \* N; w; t/ V0 o; H/ B! E" o > - Ability to configure/define analog Transmitter input ranges through
% F. C& s; [1 Q0 {( { V% U+ Q> simple programming method to correspond with full-range analog Receiver
2 b! ?: w( E9 C$ h' w0 U7 m, N> outputs (0 - full voltage).
1 d+ ^6 G8 \) z. x! s! }>
v6 w) B1 @' s! h9 {) L! n > - Ability to configure and set sample rates for the inputs.
% [9 \2 o q0 J8 f >
N4 c! i, {: k) {+ n> - Digital output on Transmitter that turns on during the sampling period.
! [( _ W Z# P5 Z >
& t2 W' a! k H) T > - Ability to configure a power saving Sleep Mode in the Transmitter by
8 w5 {/ J I- V5 ~> both software control and input hardware control.
' c0 [; X. l. R; ?+ o' o2 S >
+ Z& O/ |, m: |0 X) }> In order to configure the units, we would need a way to make the
6 ]. k& Z) }; i2 B> settings. This would preferably be from a computer terminal so that
0 u6 X A4 G# H0 P. m; Z9 E> configurations can be saved or easily duplicated for production volumes.
* ?: \+ O/ i6 U. }# u. q> The units should be small and compact with shielding, and able to mount
4 t2 o! s3 D3 ?4 i& V> to a printed circuit board with header connector.
3 V7 V1 r$ L9 c3 n >
1 n" |1 M' Z2 v% h/ p% z> At this time, we are interested in samples of a pair of modems that
/ D2 ]5 m0 _! x d8 j > might be similar to this proposed system. We do not expect that you
- \- ?; h8 x+ c" t4 b> provide all of these specifications at this time. I can describe our
0 W: W( [2 J7 v; h& t > immediate application needs in the next email if this project is of
0 r) o2 j. k0 S, O& B& _1 ] > interest to you. Perhaps you can make the samples by those
9 D; B3 Y0 F7 o/ Y' ~0 m K: b> specifications. This will allow us to test your radios before we move
3 B) B% F- g# i. p; C> forward. We are interested in your 900MHz radio to start.
7 I, T1 X# [4 ]
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