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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

% n1 t- w, C7 B8 e2 D1 A 客户要求如下,如果哪家工厂可以做,请和我联系
* G( A N ? z0 g5 F > The application that we have in mind is similar to others that we commonly
/ u0 ]" y/ E- r" e+ C h# }: h> have. If we were to pay for FCC approval, we would want to use the modem
: W( G7 M# M! ^' _ R# Y> units in all similar applications under the same approval number.
" j) z$ m! q6 k9 c* y> Therefore, we would like to be able to configure the units to a specific
4 s6 _7 H# x$ n! i> application. For the business that we do, this approach will yield more
, W- B& \' m/ @ > sales based on the same product and approval. We are interested in the
2 M+ U; K9 }4 g. q> following specifications:
% Z z7 E7 r+ L0 k >
! O1 K$ o3 @2 D2 N4 T' s( x > - 2 inputs at the Transmitter with three possibilities;
) m% D* h. B1 `, G) J; M$ [" t > 2 analog
( H! J" T1 V# }8 e( ` > 2 digital
# ?4 ~* H: S8 B6 Z5 ] > 1 analog and 1 digital
' J7 W& f0 F0 |5 O( f>
. ?4 `# v& O) u) s- n0 h: o( f > - 2 outputs at the Receiver with three possibilities to match inputs
6 t4 {3 Q; X7 r G, Z0 L6 ~ >
" w. R5 F# k( a5 `* z) g > - Ability to configure/define analog Transmitter input ranges through
8 V& D! e+ X# n( s x) o> simple programming method to correspond with full-range analog Receiver
& `& F" L! K. l> outputs (0 - full voltage).
3 J% ^* h$ D& z' q7 z >
) F% w {1 h# E( @) O > - Ability to configure and set sample rates for the inputs.
; q- D- l9 f, }0 @ >
+ l6 @* t9 W6 g3 O/ J* ` > - Digital output on Transmitter that turns on during the sampling period.
2 y, f# A' r" t4 {, B7 F. y>
9 I% h- j3 n5 b' h > - Ability to configure a power saving Sleep Mode in the Transmitter by
2 v5 i* a) Z1 {$ N, B > both software control and input hardware control.
" N" Y1 d* R! p$ A9 ?, U) d>
6 L* |. ?, u% z1 H1 ]3 H> In order to configure the units, we would need a way to make the
0 Y9 `; ~- u- [- q" V. c > settings. This would preferably be from a computer terminal so that
% z7 d4 d" c0 d& @2 e > configurations can be saved or easily duplicated for production volumes.
' Z9 Q2 |, W* O0 t7 E7 O> The units should be small and compact with shielding, and able to mount
% n" ]* [' l p! _$ T > to a printed circuit board with header connector.
) F7 ~1 a, [' `/ _1 M>
6 Y4 G6 n, l4 ^+ | f> At this time, we are interested in samples of a pair of modems that
- z# s S H2 K5 P: f> might be similar to this proposed system. We do not expect that you
0 v* R: Q$ q& ? Q> provide all of these specifications at this time. I can describe our
' v( R4 o# x- m3 ]0 u6 R8 q2 k% Y > immediate application needs in the next email if this project is of
9 }3 r% }+ \& M& O! r/ V: ^ S3 Z > interest to you. Perhaps you can make the samples by those
% q3 l3 ]- L& `1 O> specifications. This will allow us to test your radios before we move
; \" Q0 J, t/ T> forward. We are interested in your 900MHz radio to start.
( Y+ l. O J( ^; a
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