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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

; v+ J O, ?$ ~9 @客户要求如下,如果哪家工厂可以做,请和我联系
: B. X% e) W$ Q M# u$ ^8 } > The application that we have in mind is similar to others that we commonly
# ]1 @- }8 A, E5 [5 n> have. If we were to pay for FCC approval, we would want to use the modem
4 C8 {* \; S! u9 @' Q> units in all similar applications under the same approval number.
1 E9 g: X0 H. V3 U4 N/ B/ d > Therefore, we would like to be able to configure the units to a specific
) S* l, R& f7 ~8 p, O5 Q > application. For the business that we do, this approach will yield more
+ q! D1 z3 t$ |1 \> sales based on the same product and approval. We are interested in the
& n8 K! O2 w$ d1 Y1 U _> following specifications:
/ }3 V6 m3 W2 U$ M! R/ O >
3 s" i4 }* i3 `2 I > - 2 inputs at the Transmitter with three possibilities;
( O! d) E+ Q) t, }& B' j# c# W6 n> 2 analog
: Z0 V, W- A) d: B( t6 M; x > 2 digital
# L$ s. l' J8 _+ |" z: K. L > 1 analog and 1 digital
& s ^* y- H" d3 ]% x>
/ k5 m" K3 y+ s; H7 _7 r, z> - 2 outputs at the Receiver with three possibilities to match inputs
2 i3 j% u( U& W9 t- V+ f>
7 S- a& d. X' e* b3 z, I> - Ability to configure/define analog Transmitter input ranges through
8 T. C; t) g/ r8 C" H. U > simple programming method to correspond with full-range analog Receiver
8 \2 f: _% Z6 T! H& o$ U, o> outputs (0 - full voltage).
: m3 x6 T0 c J# f >
* Z$ S+ F; H# {; ?& x# m3 F > - Ability to configure and set sample rates for the inputs.
; w: P6 A v5 R: I! d0 c >
. N' C, W i \- _# o > - Digital output on Transmitter that turns on during the sampling period.
+ n: ~, G( p4 P; {, g! F1 C t$ e >
6 {: w1 ?3 Y6 g1 e9 y! y> - Ability to configure a power saving Sleep Mode in the Transmitter by
! a9 o! b' l! }) }' B) o > both software control and input hardware control.
4 D0 k8 t1 i9 L# C- g >
9 _/ `" H" p7 D7 F: e& h% A+ d > In order to configure the units, we would need a way to make the
- Q$ L% c0 n6 `# p- n3 T > settings. This would preferably be from a computer terminal so that
6 X G2 ~( U0 G4 P5 U > configurations can be saved or easily duplicated for production volumes.
) g! o+ ~4 D) J8 |1 | > The units should be small and compact with shielding, and able to mount
1 Q7 F5 V: M% Z/ `- h2 [> to a printed circuit board with header connector.
, |( ?5 L# C& s4 ]/ W& } >
) L. \) r- ^( e5 x" j/ W; w > At this time, we are interested in samples of a pair of modems that
+ U6 {. ]8 A" s5 d, \% s$ a& q > might be similar to this proposed system. We do not expect that you
/ u8 W' I6 e: ^5 V5 ]: F0 O> provide all of these specifications at this time. I can describe our
7 u! J$ E7 { d) ^, X> immediate application needs in the next email if this project is of
, l8 C# ?, t( j; }% C% @' P> interest to you. Perhaps you can make the samples by those
) y, ^$ M. [ {# o9 \7 s- j> specifications. This will allow us to test your radios before we move
4 K/ S/ B1 Q2 \7 W > forward. We are interested in your 900MHz radio to start.
2 B( s! B c: W; q, V# p7 c) E
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