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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

* B# C0 O0 t; b P: c% Y( q2 V客户要求如下,如果哪家工厂可以做,请和我联系
% D7 n+ z% ~4 a5 f4 } k C > The application that we have in mind is similar to others that we commonly
: n% L, @+ @8 m" l0 P > have. If we were to pay for FCC approval, we would want to use the modem
) X+ f9 p* s! ~; }' T" `> units in all similar applications under the same approval number.
6 X+ ]; w( N! o0 F2 i9 J$ t > Therefore, we would like to be able to configure the units to a specific
4 E0 B! ?7 i1 N/ E> application. For the business that we do, this approach will yield more
6 p6 n' b9 K8 o/ a5 @" o/ g > sales based on the same product and approval. We are interested in the
& g2 N: {$ q2 f1 r3 t# L> following specifications:
: Z c+ ^- C0 m >
; w- ]: I& A" l: c; C0 A> - 2 inputs at the Transmitter with three possibilities;
{8 F0 T1 n0 C; B, h# B> 2 analog
r+ G2 ]# ?& z4 z" D> 2 digital
. ?5 t7 e+ B2 p- p# f3 ] > 1 analog and 1 digital
4 ]& q# w) m- @. G) W4 d2 e! @>
. ]7 Z. h0 V0 y: a/ L > - 2 outputs at the Receiver with three possibilities to match inputs
) B% m& R/ [4 n$ n5 \ >
, e4 G" U% {; {# ]$ m T0 b3 f > - Ability to configure/define analog Transmitter input ranges through
6 ]: [+ s& x+ G > simple programming method to correspond with full-range analog Receiver
/ j# _; D/ q' A0 g7 }5 } > outputs (0 - full voltage).
9 H" s4 R/ O$ N2 o>
3 _& y" Z. p* c( E, G5 D> - Ability to configure and set sample rates for the inputs.
5 p" [% c i; R- j* q4 `" w' I& X& R1 ] >
" j) p: u' Q% o1 l> - Digital output on Transmitter that turns on during the sampling period.
7 s% |$ b6 |7 |5 r>
. [& [) s2 ~3 O- e > - Ability to configure a power saving Sleep Mode in the Transmitter by
9 q) T3 |; {) z2 `> both software control and input hardware control.
7 v* V2 s: G9 m: w! t: t>
$ `' Q9 t A% s" V) H' M > In order to configure the units, we would need a way to make the
5 W. z: e6 `" Z9 Y" O. I/ ?/ A/ @ > settings. This would preferably be from a computer terminal so that
8 [& a4 p3 y$ m. W > configurations can be saved or easily duplicated for production volumes.
: U5 D$ y8 R* ^ > The units should be small and compact with shielding, and able to mount
4 j( C( O$ C* Z; W1 q > to a printed circuit board with header connector.
4 b9 Y& J4 [ R* l$ g# X>
" @, s/ s2 K1 ]9 e0 V9 G+ K$ |8 ` > At this time, we are interested in samples of a pair of modems that
# t1 v( ^+ Y; r( } > might be similar to this proposed system. We do not expect that you
5 o: ]: g2 y8 J% L" K> provide all of these specifications at this time. I can describe our
! B7 R: x9 v" Z: d% W1 O+ y > immediate application needs in the next email if this project is of
* C$ J5 z/ I3 D9 g& C# B> interest to you. Perhaps you can make the samples by those
3 v, z' _4 d% o/ W- N( F7 |> specifications. This will allow us to test your radios before we move
. r0 h! M& { P: T3 l/ C; e > forward. We are interested in your 900MHz radio to start.
1 t8 R K# o/ B! E/ o( v( C
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