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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

* D, @7 c$ g3 i3 B' W客户要求如下,如果哪家工厂可以做,请和我联系
' Q3 T- {/ ]9 u- v+ z" D& Z5 Z> The application that we have in mind is similar to others that we commonly
% a" J* u' s) ^ > have. If we were to pay for FCC approval, we would want to use the modem
3 }& V" O9 x" o. X- R > units in all similar applications under the same approval number.
( e: w. `. g8 \, b! L7 L3 Z; U% m> Therefore, we would like to be able to configure the units to a specific
9 M' t. ~ Y. y8 g% T3 U# n* c> application. For the business that we do, this approach will yield more
' b3 s0 r& i; F5 F. q& Q > sales based on the same product and approval. We are interested in the
& R; y. x7 x. H: Q% G8 H. D, D> following specifications:
4 g# {, z; h1 V >
. s$ K3 L6 e9 `7 i7 I' v3 _: ~> - 2 inputs at the Transmitter with three possibilities;
: |$ c- n; P2 i9 l: B > 2 analog
6 Q+ \# h9 h6 I> 2 digital
# U. @5 G) y# G5 E7 _( K> 1 analog and 1 digital
- D) H* q4 C( x; s o >
- ^) p7 U8 i u> - 2 outputs at the Receiver with three possibilities to match inputs
9 ]# @$ W5 Q% s2 J1 W >
; k8 I( |# Z! Z \ > - Ability to configure/define analog Transmitter input ranges through
K8 k$ }& O- l' e$ j> simple programming method to correspond with full-range analog Receiver
8 Q$ N$ k0 N. q9 ^3 X1 c, O6 [! }> outputs (0 - full voltage).
. w; e/ a3 q$ U>
1 c: L1 V4 j+ I; H8 t8 ]9 q > - Ability to configure and set sample rates for the inputs.
m/ i0 o) U( }' p& G >
E0 c9 \' J5 P7 {' y; L j > - Digital output on Transmitter that turns on during the sampling period.
1 p. X9 g f, w4 s >
/ W1 J, m+ W5 Q7 ]9 @+ X> - Ability to configure a power saving Sleep Mode in the Transmitter by
# H# W k& [& h1 v+ v4 _: D> both software control and input hardware control.
' v" d6 ? I" d4 ^- v; W' W; x >
( |1 r7 r, D% |$ X) W- ]> In order to configure the units, we would need a way to make the
) R, @- `+ j( }4 N5 a7 |$ e > settings. This would preferably be from a computer terminal so that
8 C+ w6 c T% w+ {; M: j# k( T> configurations can be saved or easily duplicated for production volumes.
4 V9 Y/ r9 v5 ?2 n> The units should be small and compact with shielding, and able to mount
: B- I3 D6 s. J8 B1 @8 }+ ]) d- ] ?> to a printed circuit board with header connector.
2 n# {7 E& Z& H: @3 J+ t$ E >
$ r% r: J6 V- T: }' V Q8 G3 K > At this time, we are interested in samples of a pair of modems that
e6 _/ @5 ^. H4 o8 I6 ^ ~> might be similar to this proposed system. We do not expect that you
1 R8 ?' R3 g0 d' U0 x* ^> provide all of these specifications at this time. I can describe our
I% V* B8 y4 } > immediate application needs in the next email if this project is of
6 h N8 A1 B2 o6 l6 z7 p > interest to you. Perhaps you can make the samples by those
$ e0 r5 J+ L, z; r6 @/ d > specifications. This will allow us to test your radios before we move
# U/ [" X! l& ~( S& m. ?( V S: z > forward. We are interested in your 900MHz radio to start.
1 M: R" a6 a, W
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