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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

- q& [( ?3 ?" [" U' g 客户要求如下,如果哪家工厂可以做,请和我联系
* e) W7 U$ c3 E: t' `3 h> The application that we have in mind is similar to others that we commonly
3 x) q2 {6 Q& l& J% _) H > have. If we were to pay for FCC approval, we would want to use the modem
$ L' P6 T3 v5 s( m( _" i> units in all similar applications under the same approval number.
; q2 o9 d8 F/ C6 i# \# q> Therefore, we would like to be able to configure the units to a specific
; g4 y" F. |5 H, X> application. For the business that we do, this approach will yield more
- n: t, O: `6 x- L$ Q: u$ D3 _0 c> sales based on the same product and approval. We are interested in the
# ?2 i9 M* c" ~+ f; v! t+ { > following specifications:
% }8 c! @+ l6 K8 G( \/ W; t* ^>
6 c/ v4 t9 W9 \ F2 o > - 2 inputs at the Transmitter with three possibilities;
' k, k* d: o( A6 n7 z > 2 analog
. A) A) d. s q3 K3 ` > 2 digital
. [# a9 T: ^8 e: Z: Y2 s* L0 _0 C# e> 1 analog and 1 digital
. h' W# [0 _, q. Q. y >
6 A& s; ~0 e( ~% F4 K> - 2 outputs at the Receiver with three possibilities to match inputs
! b _( Q! v! T( z, t! Z >
1 Q3 v% t' U \0 x2 G( |> - Ability to configure/define analog Transmitter input ranges through
0 Q8 M% \5 _; z- A0 n& K4 P7 g% Q > simple programming method to correspond with full-range analog Receiver
) ^2 w0 o; Y3 |. P+ M7 ?7 N& t0 {> outputs (0 - full voltage).
, x9 u. ?* c8 h >
% s6 i& b, K: ?4 W! e6 l5 e$ B> - Ability to configure and set sample rates for the inputs.
- y# S3 v" u( Z >
5 [! g( D4 u7 _6 {% @> - Digital output on Transmitter that turns on during the sampling period.
& Z$ d2 y$ {) F/ Q; Y& T# F. x >
8 \4 z. |# ?5 r; f4 Q- V > - Ability to configure a power saving Sleep Mode in the Transmitter by
: m# G8 e9 {# i4 p& Q$ w+ w9 {. b/ u > both software control and input hardware control.
6 k6 W$ [# Z6 X5 v2 [5 u >
$ I2 [4 i) \0 U! C' }5 h7 l > In order to configure the units, we would need a way to make the
+ c7 i* A" O: }, [: p/ ] > settings. This would preferably be from a computer terminal so that
4 |; r# {9 v$ Y% e$ V8 L; R8 n> configurations can be saved or easily duplicated for production volumes.
, G7 F$ W4 ~8 c% J: _9 V > The units should be small and compact with shielding, and able to mount
+ ]; P3 J5 S @ > to a printed circuit board with header connector.
2 N3 C* M9 Z E5 e >
7 M: c- a- G6 f9 \7 A# D9 u > At this time, we are interested in samples of a pair of modems that
6 c; Q8 f2 [+ u5 q2 T6 u> might be similar to this proposed system. We do not expect that you
: z& P* y; Q8 `3 A > provide all of these specifications at this time. I can describe our
+ n! t* ?# G* m> immediate application needs in the next email if this project is of
& K1 E! v4 m& s* ^+ ^> interest to you. Perhaps you can make the samples by those
3 }6 K4 f% I7 U% R2 V8 }> specifications. This will allow us to test your radios before we move
. \8 v4 r8 i0 ?" L" }. L > forward. We are interested in your 900MHz radio to start.
; f5 `" v: n/ D% B9 z+ o3 u, M
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