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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

4 l- ~. d$ N, r( D$ t* H8 K客户要求如下,如果哪家工厂可以做,请和我联系
& n' ]- A5 b3 k. g+ O> The application that we have in mind is similar to others that we commonly
5 Q" U+ _5 C5 ?6 g> have. If we were to pay for FCC approval, we would want to use the modem
' X) M; V+ F8 V9 |8 C > units in all similar applications under the same approval number.
# `* B) z/ \5 W > Therefore, we would like to be able to configure the units to a specific
6 g& I9 B8 Q; _9 T4 | > application. For the business that we do, this approach will yield more
8 f" |! s c3 i: P& z+ g- { }7 P" Q> sales based on the same product and approval. We are interested in the
8 i/ Y* ?7 q. E7 i. B/ h: W) R9 i > following specifications:
9 t* v8 ]# e) |/ J >
4 d! X# Y6 O- t# L: ^* Q. S) u$ F> - 2 inputs at the Transmitter with three possibilities;
# T. w( n$ H9 x3 }> 2 analog
/ b4 y5 o$ L7 b > 2 digital
* ?3 t9 O2 f) `+ X( Q> 1 analog and 1 digital
" T; |2 z/ x! |2 n5 ?& ]>
/ z- |% k1 a" U# G > - 2 outputs at the Receiver with three possibilities to match inputs
; k3 Z* Q6 l& K2 a2 w6 N>
8 S1 F/ e; G: F > - Ability to configure/define analog Transmitter input ranges through
' U& ]; |& d$ r, m* C8 n: Q > simple programming method to correspond with full-range analog Receiver
$ u' s1 T& J; k4 Z+ M8 U> outputs (0 - full voltage).
: u- F6 j- o/ U>
9 E4 e1 L4 k( W; ?; n% r7 t, N0 h > - Ability to configure and set sample rates for the inputs.
+ R3 @& `4 A+ z( k* M: @, n% Q/ N>
) E; ^& M. Z5 g2 R> - Digital output on Transmitter that turns on during the sampling period.
6 ^$ P* Y% O. o; n. K >
; i; m6 e! J1 { O' k& c" S& q+ m: ^ > - Ability to configure a power saving Sleep Mode in the Transmitter by
0 ^6 I" X3 P0 S' c > both software control and input hardware control.
, D8 P1 V9 n4 E! ^4 J) s>
2 d$ J+ f+ a; ?" z* l) t# f V > In order to configure the units, we would need a way to make the
8 w6 B2 V: x& a* ]7 ` ~> settings. This would preferably be from a computer terminal so that
6 U M: E' l( v+ X> configurations can be saved or easily duplicated for production volumes.
3 X9 r0 g5 Y6 O% `& ^% o > The units should be small and compact with shielding, and able to mount
5 }7 P% \$ P/ ~7 q- h; {> to a printed circuit board with header connector.
' \* l1 a4 {6 ^* Z; ?$ _, P >
3 U3 l8 v+ s1 N> At this time, we are interested in samples of a pair of modems that
V. c; r$ t/ U( l > might be similar to this proposed system. We do not expect that you
1 S( K9 P/ F% l > provide all of these specifications at this time. I can describe our
* M' o! t9 B2 x, } z/ j > immediate application needs in the next email if this project is of
- I# K8 o1 l# S4 K3 L > interest to you. Perhaps you can make the samples by those
3 _: O8 V# M# l# r0 S > specifications. This will allow us to test your radios before we move
0 X# ~- p6 Z# K, u" v > forward. We are interested in your 900MHz radio to start.
; M7 X3 |& k9 l+ |; e
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