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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

3 M, _* S% I9 z, W" }) C, _; x 客户要求如下,如果哪家工厂可以做,请和我联系
1 q# R6 U9 P- o- g6 }$ H > The application that we have in mind is similar to others that we commonly
. B8 [) f, @2 t2 }> have. If we were to pay for FCC approval, we would want to use the modem
, L5 T" l( {0 M$ {> units in all similar applications under the same approval number.
: `9 S2 s: U5 w7 A) i4 I1 h" N' e% } > Therefore, we would like to be able to configure the units to a specific
# I4 G. g: ~5 N1 B9 O7 F- Y> application. For the business that we do, this approach will yield more
1 G+ Z& d4 F7 K0 w2 V# C. q > sales based on the same product and approval. We are interested in the
& z2 X6 V# n8 J2 w- x; w& G> following specifications:
: Z9 W9 y1 _: j5 v>
T5 f, m; s: L! ` > - 2 inputs at the Transmitter with three possibilities;
8 R/ K5 A$ P0 y > 2 analog
- j* w* i# ?$ _> 2 digital
$ }3 b. w( }' J) X8 o- {! E > 1 analog and 1 digital
s( T+ P# H5 w( i& q4 p6 _>
5 \* N: {4 ? S/ l! M> - 2 outputs at the Receiver with three possibilities to match inputs
$ O) ]- v+ A- k! j7 y >
2 u* N! u" Y8 w* X$ ] > - Ability to configure/define analog Transmitter input ranges through
( W2 X& D; |$ e: `8 T> simple programming method to correspond with full-range analog Receiver
$ {2 t1 ?$ `+ R5 F# b$ p > outputs (0 - full voltage).
( ?* n$ R8 ^, B! w9 N9 I>
) W% a0 _1 L5 t$ s, S) F1 c3 |8 T> - Ability to configure and set sample rates for the inputs.
: t/ {% u& [, L# G h>
# t8 X! e2 P2 W9 _9 h/ Q( {* ?& a+ J> - Digital output on Transmitter that turns on during the sampling period.
9 c# E& B+ n( Z3 [ >
7 Y+ s, S; x6 Q> - Ability to configure a power saving Sleep Mode in the Transmitter by
0 G0 p8 A8 h, [+ c- [ U3 [ > both software control and input hardware control.
+ f. C4 E# y* r7 A>
X _7 r0 A. o6 k Y4 V3 r > In order to configure the units, we would need a way to make the
6 q! n# ~) X0 x I# J > settings. This would preferably be from a computer terminal so that
8 w& n; i9 h D. N# _/ Q0 _5 S > configurations can be saved or easily duplicated for production volumes.
) ~' c6 Y# ^) n > The units should be small and compact with shielding, and able to mount
# B$ g9 O2 z* q& ?& A) l > to a printed circuit board with header connector.
! J, `3 h& J+ H* e: V7 H* b0 L >
|2 ]) Q: L1 v* ?0 c5 d+ u0 h > At this time, we are interested in samples of a pair of modems that
' R4 Z( G& I, W" { > might be similar to this proposed system. We do not expect that you
T, D; ^+ V p$ W1 I > provide all of these specifications at this time. I can describe our
+ o& g5 b6 h" r> immediate application needs in the next email if this project is of
# a; ^/ W5 h# z2 O! H4 {> interest to you. Perhaps you can make the samples by those
0 ~" C/ Y3 s( G( L> specifications. This will allow us to test your radios before we move
q* P' [# J' J! H! S+ d! g > forward. We are interested in your 900MHz radio to start.
0 s8 B. C2 a7 I" ` g7 G
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