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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

/ ?1 Q" m5 {) t _( g% @1 P4 s客户要求如下,如果哪家工厂可以做,请和我联系
/ L- P1 s% {. o0 ~: B! t> The application that we have in mind is similar to others that we commonly
! b: N; [8 m4 o1 [> have. If we were to pay for FCC approval, we would want to use the modem
4 t( Q7 ]# Z9 s7 k; h6 q> units in all similar applications under the same approval number.
" e+ J/ I, e; E: w' N9 C6 P4 H# n/ P* V> Therefore, we would like to be able to configure the units to a specific
. P& m5 L1 K3 i7 Y$ v1 o > application. For the business that we do, this approach will yield more
, b8 g; a- ?) E > sales based on the same product and approval. We are interested in the
& v/ E* l/ L8 z9 o5 s4 X& w- J; h> following specifications:
5 z# L, I t- P8 ~- ?+ n2 o >
: F. D5 r" f* m. I: Y% r1 a > - 2 inputs at the Transmitter with three possibilities;
6 [* i# V; n) y2 x8 y q" X > 2 analog
8 z4 Y' a+ d H> 2 digital
2 s: ]. y7 N5 m- V. T5 Z > 1 analog and 1 digital
8 n% r% T$ y) q: B8 r >
! ^# ^& G4 e" B# I! |$ E' x# } a> - 2 outputs at the Receiver with three possibilities to match inputs
9 y) r& M/ z5 J5 C0 J>
8 O N0 a2 ~( w% e: M3 p# n$ [% o> - Ability to configure/define analog Transmitter input ranges through
' B9 P0 c( P9 K! z! r> simple programming method to correspond with full-range analog Receiver
5 J: P( @; B4 _+ {7 w> outputs (0 - full voltage).
5 `$ l5 @. R2 p9 V7 u; {' |6 W9 e>
) r) N. b |$ u1 P; z> - Ability to configure and set sample rates for the inputs.
1 d4 Q6 y, C, K$ ?7 x0 R >
& x/ R5 [/ X5 G4 I9 J- ^" [ > - Digital output on Transmitter that turns on during the sampling period.
0 p- M+ \3 ?, \# s- l1 S7 t>
c. T9 S# D; L) Z+ T0 `) i> - Ability to configure a power saving Sleep Mode in the Transmitter by
9 L% N) s) E! R' ?( O& P> both software control and input hardware control.
Z, V# l+ f# N1 F9 a+ O>
: k& s# X+ G' K }- ~! I> In order to configure the units, we would need a way to make the
5 d; E5 {9 `/ q1 k8 E > settings. This would preferably be from a computer terminal so that
- g. c, I0 ~( k% L2 s% @# f> configurations can be saved or easily duplicated for production volumes.
' p. Z" H1 l9 v" p- S. a0 m > The units should be small and compact with shielding, and able to mount
; m( V( f& g0 a > to a printed circuit board with header connector.
' x- h; }! U; X6 s8 m >
1 P5 j* d5 Y7 n/ `; i/ a0 b0 { > At this time, we are interested in samples of a pair of modems that
# J' s+ _9 T7 d! ^% F1 H4 ] > might be similar to this proposed system. We do not expect that you
- A6 R2 J3 y$ D, e& g4 W$ J5 B1 D> provide all of these specifications at this time. I can describe our
1 M& o' E9 a) V. M: y# y$ C% w6 h! Y7 ^ > immediate application needs in the next email if this project is of
3 R5 K3 @" m/ ~; P6 x( x" D0 W. Y > interest to you. Perhaps you can make the samples by those
( _- K7 ^. G& I+ r) R* c> specifications. This will allow us to test your radios before we move
! I: |) x. \: Q* J4 U" S > forward. We are interested in your 900MHz radio to start.
* M1 u# k, F7 q2 q" g
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