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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

& ?! ?& h6 g$ S; j客户要求如下,如果哪家工厂可以做,请和我联系
9 u3 T7 F* ?) J2 n1 ]4 O# V' K) q > The application that we have in mind is similar to others that we commonly
- v2 E+ J: |. {! h1 D; h> have. If we were to pay for FCC approval, we would want to use the modem
! d3 n1 A# s+ o: Z> units in all similar applications under the same approval number.
r. B v* ]9 r3 K> Therefore, we would like to be able to configure the units to a specific
# B' H, Q2 G" x > application. For the business that we do, this approach will yield more
1 E6 P/ M) v. G) X> sales based on the same product and approval. We are interested in the
. ] h( R$ R& w: k5 L) A0 q > following specifications:
( l4 t: \$ v* f% Y( K>
( m7 x v% p. P1 ` > - 2 inputs at the Transmitter with three possibilities;
0 |, ?# U: s& {. u9 O/ W3 c) D > 2 analog
, f8 d- S1 u- M, e5 \> 2 digital
0 V" i' X8 Z! L4 S9 l3 J' p: l9 D3 B> 1 analog and 1 digital
. r8 \$ X) c9 _1 }* V >
2 I+ D9 \( N3 {: m+ e) t> - 2 outputs at the Receiver with three possibilities to match inputs
! A+ Y6 q7 s; g- i8 I5 b3 E; y7 ?>
) J8 P9 j6 A5 c( J4 r> - Ability to configure/define analog Transmitter input ranges through
z% {0 Z0 M- y% F1 ^) j( o* {+ h/ s> simple programming method to correspond with full-range analog Receiver
; k r/ R* R* D. J> outputs (0 - full voltage).
; w Q/ i- n6 h a >
" | [, @# w5 u7 j4 F > - Ability to configure and set sample rates for the inputs.
3 V* C% J/ x1 o>
8 ]/ v+ D$ a0 @9 p( m7 S > - Digital output on Transmitter that turns on during the sampling period.
. l* @4 r4 N2 d, w3 p>
2 k" I0 O4 }. u7 m: i3 K > - Ability to configure a power saving Sleep Mode in the Transmitter by
! b4 E! n% X3 u/ D5 l3 o2 d- b/ S4 q > both software control and input hardware control.
* A' b/ F1 i+ `5 f% E>
+ f# P% E; D- {" p/ o% N > In order to configure the units, we would need a way to make the
( X; Z1 E( `: F2 k# Z5 I2 x> settings. This would preferably be from a computer terminal so that
, T* w, G$ E! n V5 { > configurations can be saved or easily duplicated for production volumes.
5 r; h: F1 R, G4 d9 { r, Q: G* N> The units should be small and compact with shielding, and able to mount
- Z! ?; n+ {+ J) ~$ w' J( d> to a printed circuit board with header connector.
q0 d6 X9 @+ a+ e& t >
* G+ \" d: f. [8 O7 w6 I > At this time, we are interested in samples of a pair of modems that
# R& r9 T h. I0 M- x> might be similar to this proposed system. We do not expect that you
4 |* Y+ e6 y- T > provide all of these specifications at this time. I can describe our
- h6 m" s9 m* X( I/ X > immediate application needs in the next email if this project is of
( N' { k: z& r" L( ?" F1 `) W> interest to you. Perhaps you can make the samples by those
0 B' `( L$ y+ `! i7 Q > specifications. This will allow us to test your radios before we move
2 g( k1 c3 B; f0 B8 D4 j, X > forward. We are interested in your 900MHz radio to start.
( r& e6 [6 H9 c
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