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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

1 y: A. n& N7 F& L! _3 a客户要求如下,如果哪家工厂可以做,请和我联系
& C; D0 h7 |5 A! f# q. ~ > The application that we have in mind is similar to others that we commonly
' s4 W C6 t6 C; G' X> have. If we were to pay for FCC approval, we would want to use the modem
# ~2 a+ M) u$ h% R > units in all similar applications under the same approval number.
L. X- ~7 a" o6 o+ T3 B/ v* H > Therefore, we would like to be able to configure the units to a specific
) Q1 }1 G6 j6 b: G$ N" c) g > application. For the business that we do, this approach will yield more
/ E7 k. ^ n! y) ?, [. ] > sales based on the same product and approval. We are interested in the
' ]4 T+ \9 |) O > following specifications:
% g& a8 z* M; a2 i2 L>
* X I) `& K" M- x6 U > - 2 inputs at the Transmitter with three possibilities;
: ]8 }% h c' G" c9 {> 2 analog
# C2 Y5 D3 X5 f+ W b. b9 W> 2 digital
) e5 y- M$ l4 I3 e% A" d> 1 analog and 1 digital
2 ~/ [0 y: O; }$ H- i! K* D" Z+ ?>
1 |, {5 K4 H9 s$ B > - 2 outputs at the Receiver with three possibilities to match inputs
5 V4 w3 s+ z* e0 t >
6 k" _8 O7 x9 S' _4 h6 a7 _/ Z > - Ability to configure/define analog Transmitter input ranges through
6 j) o, B: @" H* x> simple programming method to correspond with full-range analog Receiver
4 F. g k4 r% {1 ]' P$ g> outputs (0 - full voltage).
: X" u3 V# h; L0 V \$ }>
# r9 h/ U; b1 B7 @# l2 Q > - Ability to configure and set sample rates for the inputs.
; ^. ]. Y- g" K( ^* j$ {2 ~4 o >
+ y9 }0 u. ^8 S& P5 I1 x" d; ?6 A > - Digital output on Transmitter that turns on during the sampling period.
( w Q+ Z: M/ K1 |( f% `6 S >
d9 G1 @ |& K& n > - Ability to configure a power saving Sleep Mode in the Transmitter by
0 ]; k9 n- A3 M, w2 }; W4 P) b> both software control and input hardware control.
2 @- G/ C# Y h9 ]% [/ e >
6 A( o$ N. I! V* R X+ d> In order to configure the units, we would need a way to make the
( `; R( o' m5 d2 w7 X> settings. This would preferably be from a computer terminal so that
( F1 M* @$ f# D; S9 W% ?1 R> configurations can be saved or easily duplicated for production volumes.
8 |7 L. ]: p) L7 w& o) u" X> The units should be small and compact with shielding, and able to mount
. Z- i; z! j$ g9 H' r> to a printed circuit board with header connector.
0 e& t/ g- G$ r4 b3 @ >
# e/ ]6 a0 m& o1 U- W: b > At this time, we are interested in samples of a pair of modems that
9 N/ h2 }; Y& t > might be similar to this proposed system. We do not expect that you
% T' f$ v5 S, L' J6 U > provide all of these specifications at this time. I can describe our
% d# F) Y) O7 N7 F> immediate application needs in the next email if this project is of
6 Z4 u5 x, X R) k' b" S > interest to you. Perhaps you can make the samples by those
- Q8 r/ H W' R, Y > specifications. This will allow us to test your radios before we move
/ t! ^# W: b' H& c* X> forward. We are interested in your 900MHz radio to start.
: e2 h, t' c6 p. R
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