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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

* E3 U+ z7 x. X8 t客户要求如下,如果哪家工厂可以做,请和我联系
5 `& G" @9 `# |+ N4 [ > The application that we have in mind is similar to others that we commonly
7 F, Q7 r% q5 Z: g- N- N > have. If we were to pay for FCC approval, we would want to use the modem
* ^) [- y: @( @9 K" T l> units in all similar applications under the same approval number.
; u! ^+ K# \$ I( }6 Y& P+ f) M> Therefore, we would like to be able to configure the units to a specific
/ d7 r t: {( X4 ?> application. For the business that we do, this approach will yield more
* W/ M9 @$ \' [ > sales based on the same product and approval. We are interested in the
: d2 {. l; k& V2 i9 B> following specifications:
, u0 L8 e" s+ {& A& v0 O/ ^>
) p( T/ ?' G2 Z0 F( A. t6 w> - 2 inputs at the Transmitter with three possibilities;
" {. R0 s# g& w3 T" Z! r- g& `! k6 A> 2 analog
. h; e8 R, d1 E > 2 digital
' D. f0 ?! S% B0 n3 ]! } X > 1 analog and 1 digital
2 |1 I) h( c: W: s; q Q$ l >
6 b& g6 o, l, h& o; n8 h) I > - 2 outputs at the Receiver with three possibilities to match inputs
4 A h% V8 H1 m: J4 d* s >
, E: v4 p! X: w8 L. V1 h> - Ability to configure/define analog Transmitter input ranges through
+ V' e3 z6 v' O+ b* K$ u" | > simple programming method to correspond with full-range analog Receiver
" f% G+ `* M7 P- E0 z6 q% ^ > outputs (0 - full voltage).
' L1 M7 F8 y7 U B9 s7 ]! T+ |>
; n+ u; t/ M- D( N( T> - Ability to configure and set sample rates for the inputs.
( [5 q* R; F* a# d0 E >
# m/ y* }- }& w$ r> - Digital output on Transmitter that turns on during the sampling period.
l5 l( f& }% |2 F >
; _- L3 B8 u; Y0 ?0 i0 L/ K> - Ability to configure a power saving Sleep Mode in the Transmitter by
$ [) b+ q! \# q. n/ S* F9 \0 y, ~> both software control and input hardware control.
0 i& e/ p0 A6 Z: G>
2 N; |3 N4 q; J8 Q: i2 w> In order to configure the units, we would need a way to make the
7 l; l# ]5 S' l! o5 Z3 T> settings. This would preferably be from a computer terminal so that
8 h2 W4 D, g% v$ }; w: c> configurations can be saved or easily duplicated for production volumes.
) r7 L$ ~' o+ W) E- m( G% o> The units should be small and compact with shielding, and able to mount
! g F* X* w. Q4 J! O > to a printed circuit board with header connector.
5 e* ?* ? F- Q* V>
+ J: k5 d1 s$ W! F1 n& ^, { > At this time, we are interested in samples of a pair of modems that
3 D& O, p! N _; s {> might be similar to this proposed system. We do not expect that you
4 M6 r* R [ R# |. f> provide all of these specifications at this time. I can describe our
" h; `/ _" u* i! `6 s4 k# V > immediate application needs in the next email if this project is of
7 k. J& `! R C; j& X' ~9 J > interest to you. Perhaps you can make the samples by those
9 [1 ], s2 Z* E0 l5 C# f > specifications. This will allow us to test your radios before we move
8 h3 s w- q3 v g$ U% Y& T> forward. We are interested in your 900MHz radio to start.
( u; R; e( Z% N' O
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