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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

! }. b0 r1 [ {! l客户要求如下,如果哪家工厂可以做,请和我联系
# ?$ a6 ]4 P7 ~/ X0 a> The application that we have in mind is similar to others that we commonly
& N( u1 ^* D f3 S1 S> have. If we were to pay for FCC approval, we would want to use the modem
( C0 f& o# A4 V+ g; e* G > units in all similar applications under the same approval number.
) u# d! c5 Y: F > Therefore, we would like to be able to configure the units to a specific
- o3 C8 c) [7 F8 Q* O" _+ ? > application. For the business that we do, this approach will yield more
; f/ j. A2 A* N) r$ |( e> sales based on the same product and approval. We are interested in the
# B# v: e$ v5 p+ J0 i/ v6 p# X> following specifications:
+ t+ o/ ^+ b* t: S>
7 |# Y8 D+ [* u' c9 T> - 2 inputs at the Transmitter with three possibilities;
( H( }' [; M8 A6 e/ m1 {: ]- R > 2 analog
7 Q/ U5 T" \3 `> 2 digital
9 c0 A6 O& {) A1 j( ?7 ]5 w> 1 analog and 1 digital
* P. q8 h6 T) F>
( S% e9 E2 r' @7 l8 K> - 2 outputs at the Receiver with three possibilities to match inputs
$ u+ @* h4 ~/ X" E# W >
! D6 e5 r* m x! ?7 \6 D( C > - Ability to configure/define analog Transmitter input ranges through
3 v9 s) i( j1 v5 E7 e4 X > simple programming method to correspond with full-range analog Receiver
9 L' d, v, j; h) Q1 n# k m9 u$ K> outputs (0 - full voltage).
7 o8 U, w& R" ]6 _5 r% D >
! _. s5 b* e/ G0 b> - Ability to configure and set sample rates for the inputs.
" d' Y% Z: m) z x! n$ |>
2 {/ w1 ]0 m0 j; l. G> - Digital output on Transmitter that turns on during the sampling period.
8 B/ C" ~5 z: ~) N>
. {$ Z; l3 L6 G M$ r: F) | m > - Ability to configure a power saving Sleep Mode in the Transmitter by
& d$ R5 w" I: L5 \ |5 _- W+ O > both software control and input hardware control.
A5 B p1 G# w3 O9 b>
% G/ y) {- U7 m3 J2 B- T. v > In order to configure the units, we would need a way to make the
: |3 k; P3 D8 {! L6 l" @ F! t > settings. This would preferably be from a computer terminal so that
2 c: ~; h- w) p" [# x, M$ P > configurations can be saved or easily duplicated for production volumes.
- z5 f" P, p: ]5 N3 Y> The units should be small and compact with shielding, and able to mount
7 U) w' i) x# P0 |6 l1 {3 j> to a printed circuit board with header connector.
$ [7 W# v2 I: u7 w0 ]5 e7 ?>
# b6 B" p$ Q* u > At this time, we are interested in samples of a pair of modems that
$ c* x/ }3 e2 H" k> might be similar to this proposed system. We do not expect that you
8 B; N, [+ ^$ O1 N% n @0 k > provide all of these specifications at this time. I can describe our
; I4 P) g @$ u; M% a > immediate application needs in the next email if this project is of
0 X" z: O$ t1 j. \> interest to you. Perhaps you can make the samples by those
. x& Y# ?5 j) c. e! O> specifications. This will allow us to test your radios before we move
; U4 w6 }0 p* A > forward. We are interested in your 900MHz radio to start.
0 X' r4 R3 A* w* g0 j( k- }
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