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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

0 F4 ^* k3 [0 }- i" u0 F客户要求如下,如果哪家工厂可以做,请和我联系
) E! ?. @0 \3 R: N> The application that we have in mind is similar to others that we commonly
1 w( d# A7 y1 ]$ h: K! W( d0 s > have. If we were to pay for FCC approval, we would want to use the modem
5 N! l# \2 J$ {8 [, s& z# g4 J9 D> units in all similar applications under the same approval number.
' m$ c' Z, H4 [/ d > Therefore, we would like to be able to configure the units to a specific
" B4 U/ i& ~$ |. w > application. For the business that we do, this approach will yield more
d9 x- O( P; \$ X5 v$ g- ?> sales based on the same product and approval. We are interested in the
9 h& l' K, Y5 A2 }( ~1 v1 h3 J > following specifications:
1 o. ^0 t0 ~7 U >
, _0 Z4 M: x) l: r7 h2 u> - 2 inputs at the Transmitter with three possibilities;
4 R( C1 o4 {0 c$ D+ ^> 2 analog
% P: m: [$ ~2 ?' O1 b- d: N, s> 2 digital
1 `# b* p+ ^8 z" a > 1 analog and 1 digital
\) C: m2 x# B5 I>
: y! z7 w; ^8 C( r8 Y7 o: p* t$ m* f> - 2 outputs at the Receiver with three possibilities to match inputs
' n) ?6 W+ m8 f' k8 S >
' z, a3 Y+ t! d5 [7 O> - Ability to configure/define analog Transmitter input ranges through
5 H% Z' y- J# n8 H" j, M> simple programming method to correspond with full-range analog Receiver
1 o. a; c; f' X* u' r! D > outputs (0 - full voltage).
5 ~1 I+ e% i: E2 ?- \, ? >
! C. j( N; k2 V1 p; O+ d- K# j > - Ability to configure and set sample rates for the inputs.
# N) F! d& h6 z+ n( Q# A >
7 B6 G$ [6 Y+ B- T8 D% n2 V> - Digital output on Transmitter that turns on during the sampling period.
$ Q$ U: _2 S1 j4 l' R1 d8 W1 o >
* l! D* g% R/ f% z, F4 f0 I( q > - Ability to configure a power saving Sleep Mode in the Transmitter by
, ^0 H2 ~. i9 g" ^- }+ V > both software control and input hardware control.
9 C* G3 S* W9 q% d" X* o >
3 [: I, T( {" |6 u! u> In order to configure the units, we would need a way to make the
! b# A6 R6 r0 v8 o+ `> settings. This would preferably be from a computer terminal so that
( r5 H$ t6 O% {0 P) m( `) H/ [> configurations can be saved or easily duplicated for production volumes.
/ _! H/ W" {% `2 v' [) |0 A/ `, L> The units should be small and compact with shielding, and able to mount
' r$ ^7 O# c, K2 }! P > to a printed circuit board with header connector.
$ _% @2 P* Z( M >
+ `# z& a+ O) j7 _8 _1 `$ w> At this time, we are interested in samples of a pair of modems that
2 j0 b7 Z& K* Q) E( m > might be similar to this proposed system. We do not expect that you
" c1 @, i! E$ b+ z8 o > provide all of these specifications at this time. I can describe our
) T; X) O* T: ^( ]7 E > immediate application needs in the next email if this project is of
+ N2 j2 C; j/ V8 F7 N9 n* Y > interest to you. Perhaps you can make the samples by those
+ O* J ^3 n* w$ N! E( d3 b > specifications. This will allow us to test your radios before we move
' y E: e, _/ \ > forward. We are interested in your 900MHz radio to start.
' \6 E& u# O1 l+ h
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