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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

+ O/ J: s9 r% C0 K b" G客户要求如下,如果哪家工厂可以做,请和我联系
) s" H% h: A M3 g > The application that we have in mind is similar to others that we commonly
6 s& o5 J4 \2 k3 j > have. If we were to pay for FCC approval, we would want to use the modem
. W; \8 H% S( b1 I& p: N> units in all similar applications under the same approval number.
, T% A' l1 V E. T' s > Therefore, we would like to be able to configure the units to a specific
& v3 z+ D/ O) {/ c& R; p$ i > application. For the business that we do, this approach will yield more
' I3 Q" r8 s' g r/ a; l> sales based on the same product and approval. We are interested in the
5 d% @ \ ~, ^; H& m0 [> following specifications:
& P! k9 T+ w. ^1 O1 x$ |2 p$ H>
( b% N: f9 ~" c8 N. h4 @& V > - 2 inputs at the Transmitter with three possibilities;
5 V; V1 u1 F* W9 ^> 2 analog
|) a* [. p6 M+ D3 x$ C > 2 digital
/ |3 T% j U1 Q; P" q$ a/ q > 1 analog and 1 digital
' p9 s; w! O; r+ } >
& n- B! h( Q6 l& G z> - 2 outputs at the Receiver with three possibilities to match inputs
Q6 g' x/ s- o" d/ [* |>
5 l S2 k! Z4 b; J7 D) M> - Ability to configure/define analog Transmitter input ranges through
7 Z" D I, L X* X- J, d > simple programming method to correspond with full-range analog Receiver
' s; w B" O! N8 v( Z0 w7 i" O. ^/ Q> outputs (0 - full voltage).
. d9 e1 T+ Q% w- L* w A6 k >
; ~3 B4 t6 F/ N/ z7 t& {" o% h- ^> - Ability to configure and set sample rates for the inputs.
0 N2 a# B- k3 \# r% Y8 o! R1 { >
( M1 H/ G' ^; W2 b' @9 G8 ~' O6 c> - Digital output on Transmitter that turns on during the sampling period.
5 ]' e( d% ^: f >
) Z/ y. T- v0 @' B8 p$ e > - Ability to configure a power saving Sleep Mode in the Transmitter by
; N5 ^! J$ |7 G( ^7 c; a% `" z> both software control and input hardware control.
- u2 V7 `& @8 B/ @ >
) C+ d2 x. ]& ~, G! G$ S> In order to configure the units, we would need a way to make the
0 o+ i# u# s: z! l8 x$ N: `1 G> settings. This would preferably be from a computer terminal so that
" `0 Z3 I" l! i4 ]& b5 m; ^ > configurations can be saved or easily duplicated for production volumes.
* Y0 N& @9 n0 l> The units should be small and compact with shielding, and able to mount
/ h( k+ i3 ]# P2 f> to a printed circuit board with header connector.
+ H% [! t) I& L# F' Z( g >
) Z' M9 Q" e; J& Q" P6 h6 U7 H, C> At this time, we are interested in samples of a pair of modems that
2 ~! x, n! i2 F > might be similar to this proposed system. We do not expect that you
9 [, ]6 h" W0 k( ~! | > provide all of these specifications at this time. I can describe our
8 N4 A1 F2 g4 j9 X> immediate application needs in the next email if this project is of
, r. C3 R4 c. {2 ~ > interest to you. Perhaps you can make the samples by those
4 R! H! Y2 _" ]0 z3 T. ~; z > specifications. This will allow us to test your radios before we move
8 E. X- `* y) X5 Y# g> forward. We are interested in your 900MHz radio to start.
% ~" y% v4 L4 \0 H, Z
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