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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

- G7 ], O' E9 V) p7 N1 `; {" j# S客户要求如下,如果哪家工厂可以做,请和我联系
9 t- K- j& ~* P% c > The application that we have in mind is similar to others that we commonly
& w A h! Q) z( k5 H> have. If we were to pay for FCC approval, we would want to use the modem
4 o0 y4 p) r. F7 J+ [: Z) B' q> units in all similar applications under the same approval number.
( f, Z3 o: |: R" H1 `' X9 h> Therefore, we would like to be able to configure the units to a specific
0 A1 y/ |) i- i# e; }. ?" T > application. For the business that we do, this approach will yield more
* S+ e! \3 j* i, I8 C > sales based on the same product and approval. We are interested in the
D4 a4 m3 [: |. i o) d M0 L > following specifications:
+ t4 i( ~2 I' ]5 h >
0 {# ?+ b" r, H$ z3 { > - 2 inputs at the Transmitter with three possibilities;
1 f; @& C' r2 C% S! o5 ] > 2 analog
, b* J+ T8 q7 t$ a- V# J > 2 digital
) e+ P0 V* }4 h% l7 b, j8 i7 c3 n > 1 analog and 1 digital
/ z5 A2 B3 v! A2 b$ a( S>
9 P; `9 ~: X5 O3 x* ~> - 2 outputs at the Receiver with three possibilities to match inputs
; U0 f; j0 C( c >
7 j6 g9 [+ \, a+ p. f6 l> - Ability to configure/define analog Transmitter input ranges through
! z% Z. j+ N% w' f> simple programming method to correspond with full-range analog Receiver
7 [% X9 j+ z8 `2 J$ v > outputs (0 - full voltage).
1 h2 z- o6 i2 ^' c# ~>
0 I% a5 f: W. Z; w% J; N6 J> - Ability to configure and set sample rates for the inputs.
+ g' q% X. Q) ^* j>
7 m# l% [' B; _ > - Digital output on Transmitter that turns on during the sampling period.
' }: o5 F# n7 r5 z >
$ b0 @/ c: w/ k* |' H& M. o> - Ability to configure a power saving Sleep Mode in the Transmitter by
+ t0 ?8 W V, }2 M3 i4 |. D> both software control and input hardware control.
! K/ j& h: T5 r5 y& m>
" E6 j9 L, ^3 g0 q* D8 L9 o> In order to configure the units, we would need a way to make the
& p/ p% y3 I, j1 i > settings. This would preferably be from a computer terminal so that
- w0 h( ~+ N# n' k. W > configurations can be saved or easily duplicated for production volumes.
6 J6 g6 v9 U; n9 N( X/ r1 j> The units should be small and compact with shielding, and able to mount
" m+ T5 |' n) v4 D% V( X% k( N > to a printed circuit board with header connector.
* C) [( i. T" i7 O >
/ O1 e$ R& @" M > At this time, we are interested in samples of a pair of modems that
& \8 W: x4 R4 a( p% r/ o4 t9 e> might be similar to this proposed system. We do not expect that you
+ t4 y! o; |0 H1 A. u> provide all of these specifications at this time. I can describe our
) X% ~2 c" A. v v g, {+ b> immediate application needs in the next email if this project is of
4 q4 y0 d0 Y- K5 I$ Q7 E > interest to you. Perhaps you can make the samples by those
0 P; N( F+ I- h > specifications. This will allow us to test your radios before we move
% C5 _, Q* e3 o6 Z+ w2 J> forward. We are interested in your 900MHz radio to start.
$ J: z" E# Z( Q- p a8 v E
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