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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

8 M3 s* r( Z9 Z; s 客户要求如下,如果哪家工厂可以做,请和我联系
& X5 k _" r/ u* F6 @ > The application that we have in mind is similar to others that we commonly
$ `5 D6 t* |, U; G! W> have. If we were to pay for FCC approval, we would want to use the modem
. s" Y: }) K0 J0 w$ z4 u$ g( B> units in all similar applications under the same approval number.
6 k( w2 ?6 R: |8 F5 _> Therefore, we would like to be able to configure the units to a specific
( ]3 r5 m1 `. r. K> application. For the business that we do, this approach will yield more
! V: ]& u" }! O) W' @2 V> sales based on the same product and approval. We are interested in the
" o( n$ P* M3 c: Y& O> following specifications:
# H+ N% M2 b- G>
1 _- G' u3 t( o" I J8 Y1 i> - 2 inputs at the Transmitter with three possibilities;
$ l! {0 Q5 ]0 ], y8 j* ~ } > 2 analog
; M* j! `; O3 R" r" E> 2 digital
# l3 k% m3 [2 @& D3 ]; U/ D% M > 1 analog and 1 digital
/ _2 A# Y& Z# N9 X4 \ >
2 q! R$ Y8 E u1 q > - 2 outputs at the Receiver with three possibilities to match inputs
: q5 e1 n2 E; I+ P! | >
5 \% U2 a5 L" J, T' L > - Ability to configure/define analog Transmitter input ranges through
5 `+ Y: `" Y4 r. l+ T) _ > simple programming method to correspond with full-range analog Receiver
; ~$ V3 a; p" J0 a3 W> outputs (0 - full voltage).
8 d0 K% L/ j+ n9 R$ j>
3 V( Q8 r7 d+ e( F" T> - Ability to configure and set sample rates for the inputs.
o/ ?. Q# M8 u. J0 W7 M9 F9 } >
* N' e# j* x7 D& C* y I> - Digital output on Transmitter that turns on during the sampling period.
8 N! P2 b. u& {/ h0 f6 e>
5 `* }! p/ _1 A5 u > - Ability to configure a power saving Sleep Mode in the Transmitter by
/ [% l3 t" i) v> both software control and input hardware control.
& B' a: V! |1 J- \$ ^* D >
& W @! V" H7 u7 _; Y4 o5 E> In order to configure the units, we would need a way to make the
6 G# A! o8 d! ?5 |' X7 X > settings. This would preferably be from a computer terminal so that
8 u1 f8 W' s- N* [> configurations can be saved or easily duplicated for production volumes.
: r9 J+ v6 @1 z > The units should be small and compact with shielding, and able to mount
1 }* C2 ` \+ l9 b> to a printed circuit board with header connector.
0 _; w9 |) b# U m>
* t3 z% h" E7 c> At this time, we are interested in samples of a pair of modems that
8 P! c: d7 M2 e* T I; S6 V > might be similar to this proposed system. We do not expect that you
! l; v, j0 r0 v, @! I > provide all of these specifications at this time. I can describe our
" U1 |( H0 V a, P, }> immediate application needs in the next email if this project is of
, Y3 v5 R N& l; Z5 Y0 z > interest to you. Perhaps you can make the samples by those
( V/ r' J S9 J1 _7 M > specifications. This will allow us to test your radios before we move
4 |" o: g9 w' [- I: [: y/ R > forward. We are interested in your 900MHz radio to start.
8 G) s# i! T3 }* _: }
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