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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

8 E+ [- K0 ~6 s! y 客户要求如下,如果哪家工厂可以做,请和我联系
4 a2 {( v$ w9 v' x( s! a- v> The application that we have in mind is similar to others that we commonly
+ E- a; a1 t$ }4 f# y* j5 w > have. If we were to pay for FCC approval, we would want to use the modem
; ?9 W6 z4 @3 L& _. [> units in all similar applications under the same approval number.
' f7 S& L1 q* ^) l > Therefore, we would like to be able to configure the units to a specific
, T) ^: g0 b# P& ?0 v1 T) m" x; p) f) m> application. For the business that we do, this approach will yield more
0 g3 P! L1 g3 R8 l! o> sales based on the same product and approval. We are interested in the
* C& e: i/ K0 A8 u. I* s> following specifications:
' Y! e8 _; w: q! s& `, z >
. V; p2 i8 g; @/ S7 y% F. B5 k > - 2 inputs at the Transmitter with three possibilities;
# _% h' i: j; o > 2 analog
1 r8 H; f& E6 |> 2 digital
- {3 v5 ?3 U4 L5 k& ]> 1 analog and 1 digital
( ^$ P1 c. V4 |& r" x$ E>
! E, o- H8 ~3 B/ P* a > - 2 outputs at the Receiver with three possibilities to match inputs
( i o) i1 v" B, T `>
. [ f: d4 k8 ?( `4 R: t" N> - Ability to configure/define analog Transmitter input ranges through
' [: j( S' U! |5 [. g m& ~ > simple programming method to correspond with full-range analog Receiver
4 F5 `* g9 T; \, |% ~> outputs (0 - full voltage).
/ p, d' {: x7 ], E9 I5 c>
" Z) `1 M. P. J& s$ G6 r> - Ability to configure and set sample rates for the inputs.
% Z0 S& `9 l( j$ A >
# ]3 E2 y7 Z. T' }5 p> - Digital output on Transmitter that turns on during the sampling period.
6 j# O4 j% K) R7 ~>
& p6 x: M8 V' P1 k0 O( u > - Ability to configure a power saving Sleep Mode in the Transmitter by
5 \- l. ?7 `$ O6 W( ?4 L! z; m' K9 V+ r> both software control and input hardware control.
) ~' s" N0 t; Q( d6 A: L >
* n! g$ b3 ], x: ~# B> In order to configure the units, we would need a way to make the
: W8 K% \6 F0 ?0 F6 x5 o > settings. This would preferably be from a computer terminal so that
8 E& I1 h% [* J0 z* n4 R! K0 B> configurations can be saved or easily duplicated for production volumes.
- z; z5 Q: i" I" H > The units should be small and compact with shielding, and able to mount
; ^/ B( E9 v2 x; x* o > to a printed circuit board with header connector.
* f q0 K1 H# J* N6 I* p>
2 Z2 U2 \& u8 i8 U/ W3 Q > At this time, we are interested in samples of a pair of modems that
8 {: ^6 d. k9 x" R# U( U$ ~> might be similar to this proposed system. We do not expect that you
# I8 P+ D" `0 }% g9 p5 ]2 ~ > provide all of these specifications at this time. I can describe our
+ m( H2 i7 ^1 F1 @1 _> immediate application needs in the next email if this project is of
- O* o" |8 }8 w! @7 f& ]> interest to you. Perhaps you can make the samples by those
0 t n. l3 t4 n$ M% j1 Y: w5 X1 A> specifications. This will allow us to test your radios before we move
+ o9 B9 n3 g7 }1 Z2 D > forward. We are interested in your 900MHz radio to start.
1 C3 J6 D! ^" c+ _8 e
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