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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

$ m' U( ]: ^7 D客户要求如下,如果哪家工厂可以做,请和我联系
( Z8 r. P# Q" P3 c9 \2 K6 J4 ~> The application that we have in mind is similar to others that we commonly
" B+ z& L* s' w% |( _> have. If we were to pay for FCC approval, we would want to use the modem
8 G' ]; a7 l% m9 | > units in all similar applications under the same approval number.
' }& @1 d2 `1 v& |9 v* T> Therefore, we would like to be able to configure the units to a specific
: i' B( d3 W) w( I$ ]> application. For the business that we do, this approach will yield more
& I- `4 S7 p. |8 a2 R# z$ c8 E1 G( a> sales based on the same product and approval. We are interested in the
i/ D$ k! d: G ?2 ]# Q > following specifications:
; M* O" q0 G" f>
; y/ m/ ]+ ~- C. j% [> - 2 inputs at the Transmitter with three possibilities;
1 q' b7 m4 ~2 E, p q& a, Y> 2 analog
1 N1 ]+ B0 N# q) c3 _> 2 digital
% o' D5 B) h p/ t: Z6 H B > 1 analog and 1 digital
! i0 _! ~2 t# |9 e4 \+ t0 K >
5 ~ n) u0 D8 G) A2 r, |: H# t> - 2 outputs at the Receiver with three possibilities to match inputs
) G# H" L1 H$ ?8 [/ B# P; P >
# k; l* D, ?) _2 ~, \. }: K. X: Z > - Ability to configure/define analog Transmitter input ranges through
+ _( [5 j, `& w7 J$ d, R" \> simple programming method to correspond with full-range analog Receiver
( H" Z- m" ]! u! ^+ C> outputs (0 - full voltage).
" ?. |3 B1 B: p- S9 e0 {- H >
- W( Z' ?, _. F/ a4 _ k > - Ability to configure and set sample rates for the inputs.
) A8 I+ ]* H! q6 r; ~( Y# t>
- D% X; V. n7 t. J. T> - Digital output on Transmitter that turns on during the sampling period.
& ^7 t. @9 e& C8 O >
1 n2 D2 ?. B, B7 A, ? > - Ability to configure a power saving Sleep Mode in the Transmitter by
2 |& ?0 u- W* E. B> both software control and input hardware control.
) F5 K2 m, ]3 F; P >
$ I; n- q0 I) f: O$ b& g: r* O3 J7 Q > In order to configure the units, we would need a way to make the
. r L: T8 _8 I4 Q& F6 p> settings. This would preferably be from a computer terminal so that
8 ~( Z p* G' C; I > configurations can be saved or easily duplicated for production volumes.
/ k7 t4 ?3 {4 J( ^" w > The units should be small and compact with shielding, and able to mount
]. T" u2 l' g6 I > to a printed circuit board with header connector.
) F+ ]2 p5 ]3 K3 Q( F: n- d >
8 R) b: Y5 r" o > At this time, we are interested in samples of a pair of modems that
+ ~; O8 K5 |( Z6 l0 E ~$ Q* _> might be similar to this proposed system. We do not expect that you
' o" a) }& l, m- `1 o > provide all of these specifications at this time. I can describe our
/ \ L/ e! z4 B$ h% d; q+ g$ i! b> immediate application needs in the next email if this project is of
) c" k$ y# F% b- Y: m/ R> interest to you. Perhaps you can make the samples by those
3 \0 f' u2 Z% W) F- K > specifications. This will allow us to test your radios before we move
- G0 ~+ B8 W: Q( |. L+ I& i > forward. We are interested in your 900MHz radio to start.
3 N) N/ x! v, Y9 G4 P
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