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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

! z+ `( J3 r$ O# ]客户要求如下,如果哪家工厂可以做,请和我联系
3 f2 @3 G& |# h > The application that we have in mind is similar to others that we commonly
- v5 S9 r0 R$ D+ Q4 }> have. If we were to pay for FCC approval, we would want to use the modem
) u. l: a+ Z. ~0 z& \9 \/ x> units in all similar applications under the same approval number.
5 \7 w3 [! U0 Q& v# c5 e K) l2 }, i: ? > Therefore, we would like to be able to configure the units to a specific
9 i0 U% z* @) d; P S, |> application. For the business that we do, this approach will yield more
6 z" t7 J& r3 p$ w> sales based on the same product and approval. We are interested in the
4 H2 e) n( }$ | > following specifications:
" d0 c( j; w9 S! u, m' \% o>
c1 L; }8 D8 v; u& S9 P% A > - 2 inputs at the Transmitter with three possibilities;
5 i6 V) R( d1 b9 @> 2 analog
5 P! R; w0 k4 u5 X> 2 digital
9 ]' B% m0 c8 V( ^6 O> 1 analog and 1 digital
; R. P# n( j6 F/ r$ Q% L0 G5 r7 L7 k>
' m% f X; d- k! j1 a) Z> - 2 outputs at the Receiver with three possibilities to match inputs
$ w$ c, d/ a/ x* `3 {& ~5 z: F/ f>
- |/ h1 I5 k$ @5 J+ u> - Ability to configure/define analog Transmitter input ranges through
* E' |- T* J. N: q5 ~* G > simple programming method to correspond with full-range analog Receiver
7 `+ P8 D' t: z6 I8 y* ?. `2 i# {> outputs (0 - full voltage).
7 D1 X7 D6 z7 ~, C! k* k& P >
8 o/ e& V0 k6 G > - Ability to configure and set sample rates for the inputs.
! P3 u8 J3 [9 g/ z9 M3 _>
# c; O- s: {' B" C; N; o> - Digital output on Transmitter that turns on during the sampling period.
7 _+ {' c8 H, R/ W* { >
8 W% ?- x0 u% [# e0 e: J > - Ability to configure a power saving Sleep Mode in the Transmitter by
; u$ `2 o( f) s4 q' E, L> both software control and input hardware control.
4 b) s' V! k9 G2 y >
; A& e6 q4 L0 Y2 Q' J6 ] > In order to configure the units, we would need a way to make the
7 ^: x* f6 Q2 `; W9 }2 u > settings. This would preferably be from a computer terminal so that
9 D; ?2 m; _# { > configurations can be saved or easily duplicated for production volumes.
1 d0 l0 ~& l1 I! U> The units should be small and compact with shielding, and able to mount
9 Y$ j/ l5 H1 B+ I# F8 r > to a printed circuit board with header connector.
+ X6 q& N& ]- y0 I; A! n>
* Q7 i" P! R9 F8 Z > At this time, we are interested in samples of a pair of modems that
, r5 _9 B+ i5 F/ y> might be similar to this proposed system. We do not expect that you
$ z' Z5 v4 z, ^, k, |> provide all of these specifications at this time. I can describe our
& @5 c# h5 M0 W% ] > immediate application needs in the next email if this project is of
9 U% i/ r# i9 l9 Z- N8 d. C > interest to you. Perhaps you can make the samples by those
+ ~( D) E. N. U> specifications. This will allow us to test your radios before we move
8 z; {: y3 E( q* C> forward. We are interested in your 900MHz radio to start.
0 B% I) g# y' @/ ~! t
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