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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

0 \9 F5 Q+ s4 G- `& k( a 客户要求如下,如果哪家工厂可以做,请和我联系
* i7 ]5 I3 r% X2 o D> The application that we have in mind is similar to others that we commonly
J; K$ X) z k7 T2 } > have. If we were to pay for FCC approval, we would want to use the modem
' A+ T. P! V; Q4 T0 N> units in all similar applications under the same approval number.
5 p! i1 ?) b* K, s > Therefore, we would like to be able to configure the units to a specific
) k `$ u8 M2 ^ o- Z > application. For the business that we do, this approach will yield more
7 O! f( ~1 y6 Y> sales based on the same product and approval. We are interested in the
. P. [/ t# s/ ^> following specifications:
1 e1 d8 b+ |7 r H5 r# [) \ >
' Z3 `6 z3 |5 P0 e" E > - 2 inputs at the Transmitter with three possibilities;
3 F2 B/ J' e; }, _6 Y; m, t> 2 analog
) K% ]8 |1 X+ P0 m0 l) W> 2 digital
; K/ ]( r4 w+ n8 V6 O > 1 analog and 1 digital
, g8 Z! J2 i2 R/ P>
4 I3 e0 n9 Z. O, M- f9 t3 e> - 2 outputs at the Receiver with three possibilities to match inputs
% y& D7 J: L9 ]# f+ L2 u9 J >
/ `( h- j; O; r; O T, Q N> - Ability to configure/define analog Transmitter input ranges through
. Q7 G$ ~3 G* A4 ^) w; ?9 j b6 S> simple programming method to correspond with full-range analog Receiver
" @! h& S" f+ x) k% Q' h, x3 C: I> outputs (0 - full voltage).
2 ]8 v3 ~! Q8 B/ a: M, i& B' N >
" l" p9 ?2 w- \' W> - Ability to configure and set sample rates for the inputs.
5 F3 L6 E) [5 E0 n; o >
! |5 Z3 [: d) X' g > - Digital output on Transmitter that turns on during the sampling period.
3 U2 O; @( Z, p; K>
1 n1 Z, u( P2 A5 H, o5 m- v$ T> - Ability to configure a power saving Sleep Mode in the Transmitter by
- A- u3 p e: Y; W2 E: i8 I> both software control and input hardware control.
, B8 h! J4 x/ o8 ?( R% z0 ` >
. I$ A. U# Q, I/ Q% @2 a% p > In order to configure the units, we would need a way to make the
2 |5 }$ o @) Q9 a& n6 S' ^3 o > settings. This would preferably be from a computer terminal so that
9 P8 X& G$ O* K6 [> configurations can be saved or easily duplicated for production volumes.
3 H9 l( v, S' W5 Q1 Z > The units should be small and compact with shielding, and able to mount
' }1 U+ l) Z4 p. K$ p> to a printed circuit board with header connector.
3 S/ _0 \# ]1 o5 ?8 O+ d>
% x5 O3 z) P8 p9 V @) m' C/ `+ a > At this time, we are interested in samples of a pair of modems that
& w3 t0 M0 |$ l$ W2 X! J> might be similar to this proposed system. We do not expect that you
* D6 i) Z0 ?1 L8 r$ I. H! X > provide all of these specifications at this time. I can describe our
/ `" ~$ L1 k+ N- z/ G > immediate application needs in the next email if this project is of
9 a9 t( x" a# `: k$ h4 }> interest to you. Perhaps you can make the samples by those
& Y! k J3 E. L > specifications. This will allow us to test your radios before we move
) h* q# W5 o5 e: R; |8 ?5 ? > forward. We are interested in your 900MHz radio to start.
6 w& o' E+ D" i
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