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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

S0 e4 j8 u. e2 N- s1 W 客户要求如下,如果哪家工厂可以做,请和我联系
* S/ H& S# T, c$ [ > The application that we have in mind is similar to others that we commonly
+ \; }/ d5 i }' y" M& E, C > have. If we were to pay for FCC approval, we would want to use the modem
* E) A P: K% v! y' _ > units in all similar applications under the same approval number.
% N( h$ _6 X- g' j" [$ x' o9 }1 @' X > Therefore, we would like to be able to configure the units to a specific
* m$ o! W2 y. F: W4 o> application. For the business that we do, this approach will yield more
4 t# j1 o' C8 j, K' `6 I > sales based on the same product and approval. We are interested in the
* R, s$ q+ W. W% M! p> following specifications:
" n K/ p v% F; {8 [' _/ B>
1 ?$ ~" M9 `0 G6 k9 S' J > - 2 inputs at the Transmitter with three possibilities;
8 n7 U1 v2 S2 Y0 n% o/ e9 B) \> 2 analog
1 k# \5 @9 J$ W- q2 h; N > 2 digital
, {' o; M% f" s: [ > 1 analog and 1 digital
0 A+ ]/ I9 E: F# I6 ?3 P >
6 w. h3 e( g5 q> - 2 outputs at the Receiver with three possibilities to match inputs
- g! l m6 u8 d7 j >
0 i2 N7 ` ^; m$ @ > - Ability to configure/define analog Transmitter input ranges through
8 t4 i9 e9 I7 J8 l1 E5 \ > simple programming method to correspond with full-range analog Receiver
' s& n, y# `0 ~> outputs (0 - full voltage).
3 E: s, p" Z( Z' O3 o5 m% X >
: O0 _0 z1 K6 y# b! Q# A > - Ability to configure and set sample rates for the inputs.
! b9 K, C) T$ d2 n) C >
6 c4 Z0 B$ u1 p4 U4 Y0 X2 j > - Digital output on Transmitter that turns on during the sampling period.
' G) ~5 V0 f: T( H0 O3 ]& i >
7 Z6 l+ O/ @1 K > - Ability to configure a power saving Sleep Mode in the Transmitter by
2 }- }' W; {1 l y% A: c4 c > both software control and input hardware control.
' x; C6 `$ l$ A& {/ ]! z% j. ^ >
" v8 T( G, p- J4 ?> In order to configure the units, we would need a way to make the
, ?. C1 D- O/ p4 |# |# ~, {' U > settings. This would preferably be from a computer terminal so that
# q8 Y4 u. W# X5 ?> configurations can be saved or easily duplicated for production volumes.
( ^: y% y* K" s2 O5 L9 d> The units should be small and compact with shielding, and able to mount
$ X: ~) f" d6 E. D. d > to a printed circuit board with header connector.
/ f$ O3 f" B! }" r5 D9 Y/ o>
5 w' }( O+ X" O> At this time, we are interested in samples of a pair of modems that
1 z* w* ^" Y/ [6 I- U > might be similar to this proposed system. We do not expect that you
. L6 i: T, Q8 @ > provide all of these specifications at this time. I can describe our
$ A1 f3 o/ |- `; y> immediate application needs in the next email if this project is of
( _ t( ~& T) K; h+ S7 [ > interest to you. Perhaps you can make the samples by those
( F+ Y; u, N0 x' c5 h6 D+ F+ i > specifications. This will allow us to test your radios before we move
: t. B z% p) [" M6 [1 a. R+ `% V> forward. We are interested in your 900MHz radio to start.
3 I7 i: G. j; i, J* H
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