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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

) a( s/ q& e7 a% C- q( z8 c# _ 客户要求如下,如果哪家工厂可以做,请和我联系
, F) C4 R* w* M$ a. D > The application that we have in mind is similar to others that we commonly
( M- U3 Z2 F( O+ O9 N2 ?% C> have. If we were to pay for FCC approval, we would want to use the modem
5 ]3 n! H8 O) H > units in all similar applications under the same approval number.
3 r5 S5 @0 f* J9 g. A- n > Therefore, we would like to be able to configure the units to a specific
# ]# I6 [9 U* ~& C# Z5 M+ {> application. For the business that we do, this approach will yield more
+ X! W7 X: I3 }' e8 n O( }5 S> sales based on the same product and approval. We are interested in the
4 V( |, P: t0 K+ ]: t > following specifications:
" [( O I0 `, Z3 z8 x >
; Q0 t- o) l' W6 B1 o9 C! R > - 2 inputs at the Transmitter with three possibilities;
2 K* A# |, q6 X; s6 [! ~" u. H# h6 u3 Q > 2 analog
4 ?- Z7 f4 F( q% {6 I" p5 [ > 2 digital
! f' i0 Y( {' w5 }> 1 analog and 1 digital
* \0 H+ i7 r" b>
, e. h/ d" o* W5 b> - 2 outputs at the Receiver with three possibilities to match inputs
3 w. v; c/ E0 r0 i5 I5 K+ R. E>
. I2 r, B! ~; a, x/ i% ~ > - Ability to configure/define analog Transmitter input ranges through
; I/ m% ^/ Q, _* ~% \0 Y> simple programming method to correspond with full-range analog Receiver
6 a, e4 s6 C0 P) @6 M> outputs (0 - full voltage).
9 U4 d$ b5 B& Y; U7 m! s8 `' g9 J>
. j1 ?" K3 J( I- g > - Ability to configure and set sample rates for the inputs.
8 Y& B+ d; g) f3 s+ h>
% T( g& K; \0 S* d; A; z > - Digital output on Transmitter that turns on during the sampling period.
. _$ R/ T6 x; F7 f% l4 ^& L1 n >
4 s9 R- w0 M+ ?6 S" v% X > - Ability to configure a power saving Sleep Mode in the Transmitter by
0 L% X# ]: H% D8 w( h> both software control and input hardware control.
, F v# \( x7 d+ A$ I$ I4 K' P >
7 M; E$ C$ N" H2 y# u> In order to configure the units, we would need a way to make the
/ A" }& Y3 o5 r! j9 S > settings. This would preferably be from a computer terminal so that
$ m8 }: Y- B. I* g9 @ > configurations can be saved or easily duplicated for production volumes.
7 p; F; h L$ ~. l* |6 s' ~ > The units should be small and compact with shielding, and able to mount
) y8 Y6 v, u+ i1 n/ ]3 o; J- x. ]8 K1 O > to a printed circuit board with header connector.
' v$ x% x: H& H& n>
8 z$ e/ P! V# F. V, R; w > At this time, we are interested in samples of a pair of modems that
9 K! }2 s8 a/ S2 E% r' n> might be similar to this proposed system. We do not expect that you
! T# o" g. Y0 V' _6 K> provide all of these specifications at this time. I can describe our
* W+ V8 g8 K; `$ E% E2 U3 S > immediate application needs in the next email if this project is of
$ N; B- C: H% W6 j0 y > interest to you. Perhaps you can make the samples by those
& D* z3 I3 Q& d- C+ C: g& H2 M+ `3 K > specifications. This will allow us to test your radios before we move
0 ~8 P; _* G4 G, F > forward. We are interested in your 900MHz radio to start.
: G/ y" R, d2 ^: B1 [( g: f8 O g
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