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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

, k/ j4 w8 O; F7 V5 {8 k 客户要求如下,如果哪家工厂可以做,请和我联系
* S( T M( K9 `9 ~! D) o> The application that we have in mind is similar to others that we commonly
- j* g S4 G8 X, n8 l: e > have. If we were to pay for FCC approval, we would want to use the modem
. Y1 K: S0 [$ O# g/ d > units in all similar applications under the same approval number.
6 v9 Q+ R9 v: }) u > Therefore, we would like to be able to configure the units to a specific
# B& M1 @1 m% g8 ? > application. For the business that we do, this approach will yield more
o% Y+ ]5 ^0 Z> sales based on the same product and approval. We are interested in the
4 b" k% ?; O8 u9 ~( w0 S > following specifications:
# ~! V( m$ v4 c; a>
]) t$ E( Y$ M2 o" q> - 2 inputs at the Transmitter with three possibilities;
: G T- r- L( W8 D* { > 2 analog
0 V/ W, w' J6 f; t, a> 2 digital
1 Z: f5 l7 P, ~; P/ } _2 c> 1 analog and 1 digital
; Z* `+ P F# Y7 @/ _5 T( z>
! f$ Q* t* q$ L> - 2 outputs at the Receiver with three possibilities to match inputs
1 }( J4 A/ j/ F( b>
8 U+ n5 c, g X3 @0 M> - Ability to configure/define analog Transmitter input ranges through
3 |' P; _- q5 I- Y- D> simple programming method to correspond with full-range analog Receiver
# f7 q" h4 t# l; g3 F& d+ M* ` > outputs (0 - full voltage).
R0 `1 ~- s- T# @5 D. A, J# N>
4 h0 T3 G% c% g, s) z> - Ability to configure and set sample rates for the inputs.
r4 t5 ^- R# B/ X a$ U! [( Q6 _>
2 l6 ^* |+ M. o9 c# A> - Digital output on Transmitter that turns on during the sampling period.
' u. Q% ?& e1 S5 g4 s: h0 p>
* W7 ~3 Z( @4 Y) _: v+ V% V* F > - Ability to configure a power saving Sleep Mode in the Transmitter by
, j! R2 J" H" b; U! u: n" W> both software control and input hardware control.
5 n* O* ~1 F9 X: ^& c >
7 r5 v" H b. c" r> In order to configure the units, we would need a way to make the
0 Z) A2 C( E8 i5 b, d> settings. This would preferably be from a computer terminal so that
+ X/ b6 k N1 ]& W# ] > configurations can be saved or easily duplicated for production volumes.
/ w9 D' x" t, i# }1 E1 Q8 p3 B> The units should be small and compact with shielding, and able to mount
! ?$ @- C% l/ } \5 v3 f3 `$ M> to a printed circuit board with header connector.
3 z/ y. m4 v0 K N! H$ j s >
/ N, Q& i7 T( N7 ^0 N6 L3 \ > At this time, we are interested in samples of a pair of modems that
* I4 w/ M; ^2 U* x> might be similar to this proposed system. We do not expect that you
, L, e4 L5 A+ K6 O > provide all of these specifications at this time. I can describe our
H# C* u" k! y# h> immediate application needs in the next email if this project is of
) |0 ~! t4 t0 J0 u1 @1 z > interest to you. Perhaps you can make the samples by those
7 K6 G( m- b/ d > specifications. This will allow us to test your radios before we move
2 J- |8 z: E9 I9 d> forward. We are interested in your 900MHz radio to start.
2 ?4 J6 P+ J) U, ~. f- E9 F
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