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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

1 j; A8 x, ^- ?( j! G/ v! n 客户要求如下,如果哪家工厂可以做,请和我联系
, G/ o u) m c+ m; X- t > The application that we have in mind is similar to others that we commonly
$ j4 V2 a5 n8 a; a" w! t> have. If we were to pay for FCC approval, we would want to use the modem
3 B+ o* G: s- d8 @! R2 |> units in all similar applications under the same approval number.
8 b5 J9 v: O2 @9 l) O9 v> Therefore, we would like to be able to configure the units to a specific
% a% z/ V6 K& s> application. For the business that we do, this approach will yield more
. o' v* i7 C) v; }! o> sales based on the same product and approval. We are interested in the
! _6 q u1 y, M> following specifications:
$ r- z' s! q# e# q) o7 _1 G) a >
* z S- j! t1 h4 g' S# o > - 2 inputs at the Transmitter with three possibilities;
. D5 u O, I: e% _: s6 Z6 _3 `> 2 analog
3 n) p* f$ t7 L9 c4 v> 2 digital
8 @% [" k7 ~% S$ { > 1 analog and 1 digital
7 l) {8 x/ M# G0 |; g>
6 P+ S# f J0 H% s# F> - 2 outputs at the Receiver with three possibilities to match inputs
' Z4 `5 N9 ?) B- W6 d; `>
' a' H1 n1 r1 {: b3 L0 {9 r" x8 J2 x> - Ability to configure/define analog Transmitter input ranges through
; c Z/ o8 H b> simple programming method to correspond with full-range analog Receiver
6 O' v, w2 u2 e" ] x > outputs (0 - full voltage).
! m$ |+ s `4 u F: e. L4 N>
+ d, p% U; C$ R- B$ t: ~1 c > - Ability to configure and set sample rates for the inputs.
& g5 R6 z Z! {. n7 b# v6 M& h2 k >
# }3 B4 t8 f, E: ^/ a" @: q; x > - Digital output on Transmitter that turns on during the sampling period.
+ K% ]% h7 W8 p$ N4 Y4 ~+ Y- N >
; Q* Y4 a" U, N( t9 \& C, ? > - Ability to configure a power saving Sleep Mode in the Transmitter by
6 a" `6 {* f0 H! ^) F: n! J> both software control and input hardware control.
9 b: p' F- a+ W, o9 b+ m. L# u>
- R* L8 O E. k+ f- I5 a > In order to configure the units, we would need a way to make the
6 I% @/ n: J4 Y1 \1 Q; X! J> settings. This would preferably be from a computer terminal so that
; p, d1 Q# X9 j) k2 T. d2 {> configurations can be saved or easily duplicated for production volumes.
+ Q4 ?) b/ p: w) @8 J t$ W) ]4 o> The units should be small and compact with shielding, and able to mount
9 `0 z1 G2 W2 M0 c$ o> to a printed circuit board with header connector.
& U6 B+ [0 Y* B>
* x/ c' d. Q% O9 t8 \> At this time, we are interested in samples of a pair of modems that
@& o, P- L) E1 V0 q# }7 q > might be similar to this proposed system. We do not expect that you
! U/ E- a2 [! s- T$ {1 a- G$ w6 A > provide all of these specifications at this time. I can describe our
, X3 X! Z- v1 R5 [: { > immediate application needs in the next email if this project is of
: f" Q7 }, P) b( v. E4 m/ l > interest to you. Perhaps you can make the samples by those
9 s# |) A% N$ u$ x( c4 J > specifications. This will allow us to test your radios before we move
2 R I' g$ D6 M: M> forward. We are interested in your 900MHz radio to start.
2 t; I( Z7 q9 r/ m k6 q
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