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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

6 G( J- {" a! C0 X. f 客户要求如下,如果哪家工厂可以做,请和我联系
& u" q s6 r) D0 X4 }' E. c) M- x. x/ _ > The application that we have in mind is similar to others that we commonly
! i" N* L( K: ?! e& i' v0 S i> have. If we were to pay for FCC approval, we would want to use the modem
. b O7 J$ d" I- C% z> units in all similar applications under the same approval number.
3 X Y; ?2 c) H J+ {/ u1 [: h > Therefore, we would like to be able to configure the units to a specific
/ c; S( Z% N' H0 z0 i) T5 o > application. For the business that we do, this approach will yield more
6 i7 H$ B6 ~' D# ` { > sales based on the same product and approval. We are interested in the
) Z, y9 C1 R$ L# H4 _! S > following specifications:
$ \5 u% Q* l, }5 M0 y1 ^. @2 H>
4 k' v4 q' Q( \ > - 2 inputs at the Transmitter with three possibilities;
- v- N5 E8 h: o0 ~/ C; F> 2 analog
! ~2 O- c7 r8 u- J$ Y0 k > 2 digital
- w4 c/ j- X, i E% e% D" \> 1 analog and 1 digital
: E; ]& x) f& n0 J7 c2 I >
) d3 ^( D: g8 r) [+ j > - 2 outputs at the Receiver with three possibilities to match inputs
9 ]% _; D8 C6 F" ^2 a9 c7 F>
( T" g# d( W: j- l P1 G! Q > - Ability to configure/define analog Transmitter input ranges through
1 X; u2 F/ v9 q! U \ > simple programming method to correspond with full-range analog Receiver
' d4 u% D. g- c# u> outputs (0 - full voltage).
* S" @' a( J2 z$ L" ^3 h$ n" n>
+ W& ?5 Z4 ]3 R! B8 v$ d( o > - Ability to configure and set sample rates for the inputs.
- a. {4 G# t2 M0 F: a0 T ` >
& i$ J) {8 a+ ~9 Y% ?> - Digital output on Transmitter that turns on during the sampling period.
# N' @3 X/ B) i% ?>
! j% l0 D/ b& N6 m( }> - Ability to configure a power saving Sleep Mode in the Transmitter by
3 T/ z6 F O8 n( P> both software control and input hardware control.
- E* f$ f* B Q4 @- @6 |>
0 c8 `/ [4 O0 {; D( Z" u > In order to configure the units, we would need a way to make the
& J9 Y% l. X! ?- t' |; m > settings. This would preferably be from a computer terminal so that
$ e2 }" S! s0 y+ K i; h' J> configurations can be saved or easily duplicated for production volumes.
, R) w4 P7 x! g4 W$ } > The units should be small and compact with shielding, and able to mount
7 w. ^, `+ n4 \2 c! w> to a printed circuit board with header connector.
" E4 f" ~' z' B+ ^ >
! R" I2 O: i, B7 @> At this time, we are interested in samples of a pair of modems that
& u1 F% V8 |2 \9 Y7 |: U4 O" D> might be similar to this proposed system. We do not expect that you
- _3 d2 t. H7 } ]+ f> provide all of these specifications at this time. I can describe our
+ y4 Y7 N2 c6 e4 @> immediate application needs in the next email if this project is of
* e$ z6 K2 b3 H+ x > interest to you. Perhaps you can make the samples by those
1 \% [# s3 s4 i > specifications. This will allow us to test your radios before we move
$ _0 ^2 X, m5 v6 s; z> forward. We are interested in your 900MHz radio to start.
^" z7 c1 e* }0 }; X9 E" H0 w0 C
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