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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

) T1 f: K1 D$ F% m) l' t客户要求如下,如果哪家工厂可以做,请和我联系
\. y* {; U- A" G' B> The application that we have in mind is similar to others that we commonly
2 \! d: ]( c; }% C> have. If we were to pay for FCC approval, we would want to use the modem
) g! H% V/ E6 B! Q8 B9 ~: Z. z> units in all similar applications under the same approval number.
3 D+ f% a$ W+ X' D> Therefore, we would like to be able to configure the units to a specific
6 l0 A& ^9 k3 E, y5 l2 B8 d > application. For the business that we do, this approach will yield more
+ W% y8 i4 O: C! l' z8 i- E. h- s> sales based on the same product and approval. We are interested in the
3 u; D: X( ^; P> following specifications:
0 Q: A1 V5 \+ l% m; P5 p! j* W>
% x4 A# b0 g4 |( p7 c > - 2 inputs at the Transmitter with three possibilities;
0 W; ]/ U& Y% W: Y" B E> 2 analog
; ^4 v) r; y. r* ~' H9 J( r> 2 digital
- n0 p9 l; j. G > 1 analog and 1 digital
' N( z* F: T+ _8 G* f>
+ S: N: U0 E7 X3 v$ E* j' {8 g/ Z > - 2 outputs at the Receiver with three possibilities to match inputs
: _5 K: L @' q- F7 n6 x# @>
. S' e) I) v" ]! S! K3 F3 Y> - Ability to configure/define analog Transmitter input ranges through
6 m9 X' U0 H% K. C/ \5 L7 ] > simple programming method to correspond with full-range analog Receiver
$ s. `5 N( k' P0 `% s& v! u$ [0 H > outputs (0 - full voltage).
9 d1 V L% L% X: f >
5 g1 r& Z: q/ t9 u$ L) A; I- O7 [ > - Ability to configure and set sample rates for the inputs.
* k5 u& v) W) q- s: d- i >
' T) n, h4 c6 C> - Digital output on Transmitter that turns on during the sampling period.
( j/ T/ c. S/ Z >
( G/ K9 [' g/ \/ l> - Ability to configure a power saving Sleep Mode in the Transmitter by
: r/ p n7 F- x( X* Z, r) K> both software control and input hardware control.
1 c$ B6 e$ I# H# W/ X5 y: E >
$ e! x, ^# r) a+ m# W > In order to configure the units, we would need a way to make the
! \7 J, {9 e4 s> settings. This would preferably be from a computer terminal so that
$ {3 ? V9 w* H: s4 Z3 Q/ v > configurations can be saved or easily duplicated for production volumes.
$ c4 V" b5 j8 V8 j- \2 q" }# N- L9 g > The units should be small and compact with shielding, and able to mount
! Z" S- U" q/ q( E+ |" U> to a printed circuit board with header connector.
4 B, X q) W5 q, `, `7 n >
w6 G1 l! c8 Z* i* Y9 s' \9 j > At this time, we are interested in samples of a pair of modems that
9 o/ H* A, i7 S6 g; y f> might be similar to this proposed system. We do not expect that you
( G8 a, b7 x7 {* | > provide all of these specifications at this time. I can describe our
# D) J2 p4 a) C! c, ^# l9 s- ]4 v> immediate application needs in the next email if this project is of
# |! j- e9 t3 l3 x4 D! }1 c> interest to you. Perhaps you can make the samples by those
, K+ i$ }) S) l' ]+ P. C, v% ~, X4 n > specifications. This will allow us to test your radios before we move
" I! g. `3 K9 X1 Z( F0 O > forward. We are interested in your 900MHz radio to start.
) p9 d+ H: k/ P4 p! e L
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