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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

/ ~* c: U M7 o& r, \/ f/ M; M客户要求如下,如果哪家工厂可以做,请和我联系
) ^& s* D4 r9 B, @> The application that we have in mind is similar to others that we commonly
3 v V0 O* c1 {" _# w> have. If we were to pay for FCC approval, we would want to use the modem
, C- B# Y( M& G2 h! Z > units in all similar applications under the same approval number.
! H* j* C1 ]2 J+ j. j4 \& E, A> Therefore, we would like to be able to configure the units to a specific
& m9 G" |3 m7 g2 J0 z0 j, u' o> application. For the business that we do, this approach will yield more
- U+ G# \% j# y> sales based on the same product and approval. We are interested in the
$ w8 _$ P, A6 c7 I > following specifications:
4 j7 A0 x: Y; ^2 E# B3 d% @, C- Q4 e >
; J; w v4 v a% a6 f: ]; v > - 2 inputs at the Transmitter with three possibilities;
' U% C3 |# b( g7 k6 p> 2 analog
* T5 c3 T9 D) p6 _" w> 2 digital
/ ^) w& ~7 O. b > 1 analog and 1 digital
& X/ a1 O, Z6 ^" s/ T>
( t8 A! o: l" X9 ~ w0 Y > - 2 outputs at the Receiver with three possibilities to match inputs
9 K' d) n: D9 @0 X4 B) r2 \+ j>
* o$ z% y( x3 i) b' S! l> - Ability to configure/define analog Transmitter input ranges through
7 v" P3 @; B; j# D: ]2 h4 q/ P4 G > simple programming method to correspond with full-range analog Receiver
- b( Y+ t' X7 ?2 q > outputs (0 - full voltage).
5 s+ z" Z8 p) O E. `' Q>
/ m% n. t: s9 \6 D% [6 B > - Ability to configure and set sample rates for the inputs.
* ~& Y4 S2 m* `6 K0 c >
9 ?$ \8 }$ ?1 Y( _+ A+ |> - Digital output on Transmitter that turns on during the sampling period.
) N) ^$ E0 t9 Z* Y d0 {- [5 u>
; ~, x. p' C! ?0 d% r& Z, l" _* r> - Ability to configure a power saving Sleep Mode in the Transmitter by
) @( p. V& s( m > both software control and input hardware control.
* [0 w/ H7 }' z5 e2 c: V; D>
; A0 v0 e: I3 P' g: t( R2 S> In order to configure the units, we would need a way to make the
9 t( i/ k. @6 _6 n. V> settings. This would preferably be from a computer terminal so that
( r2 A' F3 g: ?+ Q6 c5 _3 t: Z5 z; Q> configurations can be saved or easily duplicated for production volumes.
& M* K' l# B6 }- S > The units should be small and compact with shielding, and able to mount
4 P% [" D+ J0 i& g3 Q2 H> to a printed circuit board with header connector.
# y4 T4 `( U' F1 b: [+ n3 H' J >
3 {3 Z3 d7 W1 F b4 d > At this time, we are interested in samples of a pair of modems that
* z% k5 m+ }8 c > might be similar to this proposed system. We do not expect that you
9 W9 U9 \- _1 F. P/ a! f > provide all of these specifications at this time. I can describe our
, ^' \; N. A: [0 `+ a! F9 X O> immediate application needs in the next email if this project is of
" o$ [' v! |# t> interest to you. Perhaps you can make the samples by those
& y$ ~- Y+ V0 y- x> specifications. This will allow us to test your radios before we move
6 n) _3 u; ]0 Q/ L5 j> forward. We are interested in your 900MHz radio to start.
" P& a7 ]. g: v- n* z
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