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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

/ ?% M% l2 N1 ^7 ~/ J1 w客户要求如下,如果哪家工厂可以做,请和我联系
& r( y/ r+ Y! f- g* L4 l > The application that we have in mind is similar to others that we commonly
0 F8 \5 w8 k, o2 A. } > have. If we were to pay for FCC approval, we would want to use the modem
& S; E4 u9 Q# \5 i/ _8 x! D9 u> units in all similar applications under the same approval number.
( k& H) U% j: P* e6 K$ b- r! E> Therefore, we would like to be able to configure the units to a specific
# `/ u5 @0 C; P0 u) [8 h( p) v' G> application. For the business that we do, this approach will yield more
3 r% d, c( _4 c> sales based on the same product and approval. We are interested in the
: E& r) N X! U; B( g8 U; z& a > following specifications:
: L# ?+ g Q5 W >
. o0 C% d* W; m* v > - 2 inputs at the Transmitter with three possibilities;
* |6 Q! y& Y( q9 e7 V> 2 analog
" ], q! Y$ j) B' [, q; v/ b > 2 digital
& C/ \; f% q0 P/ e > 1 analog and 1 digital
& w- f1 X7 U" Z2 z >
9 {" R9 O/ {/ _+ w* o g. K, b5 o0 ? > - 2 outputs at the Receiver with three possibilities to match inputs
) u& x+ y$ J1 B>
c4 T4 P7 {# c1 s3 G > - Ability to configure/define analog Transmitter input ranges through
& N3 i% `+ t( e& ? z" m> simple programming method to correspond with full-range analog Receiver
+ l! l) {; a- c; d l. e: x# g3 | > outputs (0 - full voltage).
7 m' ]+ j" N4 W: c>
5 n0 o' a% \* S; ]0 G1 k+ N> - Ability to configure and set sample rates for the inputs.
4 {0 t. ~4 X0 D' n7 e>
3 S, j5 Q$ x" J2 @% { > - Digital output on Transmitter that turns on during the sampling period.
W/ H; U, k. k8 Z1 p. D* y3 l>
% l0 C" k5 v4 y4 @ > - Ability to configure a power saving Sleep Mode in the Transmitter by
0 P& ~( j# a4 N$ t1 i> both software control and input hardware control.
. Q. K8 G& d" p+ {& f' Y( Y>
5 ?! u' W0 D1 C1 c9 [( I > In order to configure the units, we would need a way to make the
0 t7 R9 r3 L9 k > settings. This would preferably be from a computer terminal so that
7 N, z* X: u+ R: r> configurations can be saved or easily duplicated for production volumes.
# A1 ^& o) {% M* T: C/ T > The units should be small and compact with shielding, and able to mount
* g7 X, b# k# a V# Q [, X> to a printed circuit board with header connector.
& W7 ^, b+ ^- t" P+ R>
" p8 y$ }+ ^3 a1 L5 I3 O> At this time, we are interested in samples of a pair of modems that
8 H/ P$ e6 c7 G, C: d > might be similar to this proposed system. We do not expect that you
2 T1 b# |6 h/ h( a5 [> provide all of these specifications at this time. I can describe our
$ o9 c5 Y1 d. u' f, A- L> immediate application needs in the next email if this project is of
9 N' ~. O5 R x% o) n( U* B> interest to you. Perhaps you can make the samples by those
2 z) P, _' c2 V: {9 j2 y5 k* s > specifications. This will allow us to test your radios before we move
0 o) k* h5 @1 ]8 x1 @0 ^> forward. We are interested in your 900MHz radio to start.
7 C/ L' a/ C, k: t
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