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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

) P5 U5 \4 E+ |5 `+ c客户要求如下,如果哪家工厂可以做,请和我联系
9 p7 A9 A0 q% Q' H, Z* B> The application that we have in mind is similar to others that we commonly
) H/ K$ y+ m; y/ Y2 z0 ?5 L > have. If we were to pay for FCC approval, we would want to use the modem
a5 ?9 K% j ~% W > units in all similar applications under the same approval number.
5 ` {3 N$ l1 i2 J; |> Therefore, we would like to be able to configure the units to a specific
* E- o! l3 a0 a) @6 G( T* ] > application. For the business that we do, this approach will yield more
2 v3 v1 X4 [& G* T > sales based on the same product and approval. We are interested in the
a7 ^2 o2 Q% Q7 j: ?% a$ E> following specifications:
6 V, N Q6 b5 u>
& L) P0 _ P4 z" U% O+ [> - 2 inputs at the Transmitter with three possibilities;
- i- O( V/ M+ a: A l F: R> 2 analog
0 H0 Y+ z/ N/ k. R > 2 digital
1 R7 V2 y, t" V0 I+ J' o4 q# B/ g > 1 analog and 1 digital
+ A* R0 V( |- {5 c* b; x>
: ^9 @" m6 c! X. S > - 2 outputs at the Receiver with three possibilities to match inputs
* v/ q1 s7 p( u) P >
4 j5 e+ R, I+ B5 ?* U > - Ability to configure/define analog Transmitter input ranges through
5 } w* S1 s1 a" a+ }9 n3 E) O > simple programming method to correspond with full-range analog Receiver
! C4 J! S1 Y8 Y1 K1 s > outputs (0 - full voltage).
! a$ ~% W/ M9 s$ h >
) m! K* V: d2 _4 M > - Ability to configure and set sample rates for the inputs.
- L" U6 `$ t% k0 O, Z# V>
8 N0 m6 i/ g* z( ~> - Digital output on Transmitter that turns on during the sampling period.
6 E& u4 h/ P1 c8 g>
2 \/ q4 x* j8 u2 W( k> - Ability to configure a power saving Sleep Mode in the Transmitter by
$ W3 G8 K9 Y$ L5 _> both software control and input hardware control.
8 T4 z) E' c4 F7 a; t- E3 P >
; u4 Z6 J( h6 p( Z> In order to configure the units, we would need a way to make the
8 ^; F, A) ]& U9 \2 h) r/ n > settings. This would preferably be from a computer terminal so that
/ ]+ i% b- \2 a> configurations can be saved or easily duplicated for production volumes.
% }5 G, D L& D> The units should be small and compact with shielding, and able to mount
, C3 m% p5 N3 B6 D8 a3 X# m! ~ > to a printed circuit board with header connector.
& l" M4 G. n4 s' Y* | >
, s2 k7 w% V6 i > At this time, we are interested in samples of a pair of modems that
4 |; g) ?/ z4 U8 h1 b& p! ?+ p> might be similar to this proposed system. We do not expect that you
L5 F0 F( c9 [' U8 D> provide all of these specifications at this time. I can describe our
- K0 W4 C* C6 Z7 O4 C3 D+ q> immediate application needs in the next email if this project is of
8 k; K' P9 U9 H7 X% K6 c$ i > interest to you. Perhaps you can make the samples by those
6 J! W0 L9 A, J: K+ F' T- B> specifications. This will allow us to test your radios before we move
3 H) d/ @+ {; t5 l, e> forward. We are interested in your 900MHz radio to start.
* _& k# Q2 [, t0 m* J3 r- T
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