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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

2 ]9 k& d7 e' l. x3 O0 M/ X客户要求如下,如果哪家工厂可以做,请和我联系
& [3 Q* K8 A6 v> The application that we have in mind is similar to others that we commonly
4 w- b% ?/ I- `, _) }$ Y' T; T3 `+ x> have. If we were to pay for FCC approval, we would want to use the modem
' P B/ _9 h# d. w > units in all similar applications under the same approval number.
/ K+ |+ s# i% Q5 _$ e8 t> Therefore, we would like to be able to configure the units to a specific
- d. m$ r, J+ q, O > application. For the business that we do, this approach will yield more
0 f: I" J+ {- B4 f) v( D> sales based on the same product and approval. We are interested in the
7 e2 i( j% E+ ~- L3 ~: i+ m > following specifications:
( I( ^+ M$ [! D* i, P, W ^6 W4 a >
& ]/ a* ]0 ~; k> - 2 inputs at the Transmitter with three possibilities;
1 I# g! c" g$ O > 2 analog
2 f' S2 R# u5 E2 t" m > 2 digital
- Y) g m/ W% k; D6 ]2 _> 1 analog and 1 digital
% r _" S! ^6 r1 Y9 z. S8 ?! B# z>
5 m' Z( l9 A8 X6 w( [" c > - 2 outputs at the Receiver with three possibilities to match inputs
Q! D) Q4 \! ?/ f+ e, w# h1 O: C( [>
. {7 W5 Z1 D& ]! g; o y/ }; j> - Ability to configure/define analog Transmitter input ranges through
, Y% [; j) N/ R > simple programming method to correspond with full-range analog Receiver
' I5 G8 T( M% u8 b# H: Z- k> outputs (0 - full voltage).
: c9 K0 c* K! o/ |7 M>
" G0 v+ M: P; d" n7 t! T > - Ability to configure and set sample rates for the inputs.
! W% ~! d; P% S5 L* J >
6 d3 X6 ` a5 Q. H: s( `% { > - Digital output on Transmitter that turns on during the sampling period.
, J. b/ s* m6 n: z* j>
5 X J; t% a% \( w4 J% e8 e> - Ability to configure a power saving Sleep Mode in the Transmitter by
0 B+ N% P' j, g: s1 t" |" a> both software control and input hardware control.
}8 R8 {0 _, { >
7 v$ W# V. R! |% v( J9 t% Z; E> In order to configure the units, we would need a way to make the
! ~2 r9 L5 _. z! d > settings. This would preferably be from a computer terminal so that
* o0 G! f& @ Q7 y, ^6 i > configurations can be saved or easily duplicated for production volumes.
1 p# [4 E1 K! d( O4 S0 t8 w > The units should be small and compact with shielding, and able to mount
b; r: d) R6 N > to a printed circuit board with header connector.
* P0 r, e- j/ I>
2 y3 r2 F2 m+ G2 e> At this time, we are interested in samples of a pair of modems that
) k5 V' y8 A7 e8 \: G. [> might be similar to this proposed system. We do not expect that you
8 t! O8 y" V( |. ~: d1 @7 i5 @ > provide all of these specifications at this time. I can describe our
6 I/ A3 I# }$ E) H( |* Z8 l> immediate application needs in the next email if this project is of
. Z9 y2 c. h. C3 ?# n1 y$ `1 v > interest to you. Perhaps you can make the samples by those
9 E/ k1 Y9 l- O: w/ C# X2 W* j0 c> specifications. This will allow us to test your radios before we move
5 |7 d4 u/ @5 _% C4 W, ^ > forward. We are interested in your 900MHz radio to start.
: H5 R9 K8 f I. L- N) {9 R
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