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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

! f; D. k, `) f 客户要求如下,如果哪家工厂可以做,请和我联系
7 O J: d9 t1 S0 B: d4 g0 l> The application that we have in mind is similar to others that we commonly
3 y" }# j' _% G2 t" z > have. If we were to pay for FCC approval, we would want to use the modem
2 u6 Z! ?' r, z Y' M > units in all similar applications under the same approval number.
; ~ \3 _0 Z" S/ m& a1 s% T > Therefore, we would like to be able to configure the units to a specific
% |4 V0 n& C) P9 U0 o > application. For the business that we do, this approach will yield more
, h$ @2 r# k5 A8 C" S* w5 L2 W) ^$ C > sales based on the same product and approval. We are interested in the
O' {. V* R+ X( H* i> following specifications:
- a- Z6 A9 N9 d9 l( R: w) s. d>
; }& O4 M: e' k9 g1 h i1 m> - 2 inputs at the Transmitter with three possibilities;
2 v& r* y# [ U& ]8 a) b. U- T > 2 analog
1 f1 h1 @' `1 I3 F \+ i9 r1 j> 2 digital
6 D: ~9 t) C* \% Z1 A > 1 analog and 1 digital
) g3 p9 f" I, |8 ?6 N3 e3 U0 \! ` >
: ?* E6 c; e) l. c- o > - 2 outputs at the Receiver with three possibilities to match inputs
6 E1 j9 ^4 N+ W+ l* l0 Q >
3 V q' ?& k) K! i4 V > - Ability to configure/define analog Transmitter input ranges through
. O: h9 S a/ V2 C > simple programming method to correspond with full-range analog Receiver
- Z" ?# z2 A0 F$ I' A> outputs (0 - full voltage).
. ?# h1 D7 m, z( u; ?5 x" g >
7 b; O9 l/ c$ M$ K) I3 f' w> - Ability to configure and set sample rates for the inputs.
# e; Q$ g' k6 C: y: U >
6 \' a, M" e m# }: Y& k; p> - Digital output on Transmitter that turns on during the sampling period.
4 i, ?& ]7 I- l>
0 t" U# ^( t$ d W; I1 U > - Ability to configure a power saving Sleep Mode in the Transmitter by
: x# N/ x2 j3 }0 `1 C> both software control and input hardware control.
! p! E) q- A- \>
( j0 y& i+ X8 }: c" ^/ i3 I! b > In order to configure the units, we would need a way to make the
1 l$ b, j3 V& e& h1 K, j > settings. This would preferably be from a computer terminal so that
) |: S. B6 t0 U. T; } > configurations can be saved or easily duplicated for production volumes.
b0 e/ D" B2 H+ X0 u3 L2 @8 _ > The units should be small and compact with shielding, and able to mount
' [3 \% `7 u7 R. f > to a printed circuit board with header connector.
4 z' g" J4 F: A; ^" x! S >
9 a- O3 x. W% n> At this time, we are interested in samples of a pair of modems that
5 }6 U5 K2 W% X, P+ e* p- \9 z> might be similar to this proposed system. We do not expect that you
8 N/ M; L. m* ~* y+ `> provide all of these specifications at this time. I can describe our
) q% {7 f; o* U* ~, Z; K: S( d> immediate application needs in the next email if this project is of
+ w5 W2 p2 ~9 N' u! d& L& N > interest to you. Perhaps you can make the samples by those
8 ^; `$ f% a6 I# D V" n> specifications. This will allow us to test your radios before we move
, s9 ?! a( W: q b/ y, Y4 |- Y> forward. We are interested in your 900MHz radio to start.
. F0 f5 ?8 [) }' T
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