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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

& F3 _* c( A4 Z7 F1 d2 X2 F客户要求如下,如果哪家工厂可以做,请和我联系
( M, J0 u6 y2 r> The application that we have in mind is similar to others that we commonly
9 h% z/ Q7 A& ] > have. If we were to pay for FCC approval, we would want to use the modem
; B5 C7 o. _: C: n6 K$ f6 w > units in all similar applications under the same approval number.
1 n+ E$ J' ?0 w- y& S; ?9 Y> Therefore, we would like to be able to configure the units to a specific
3 ?+ p& e4 a/ H4 E7 N$ d > application. For the business that we do, this approach will yield more
( Q' K- ~9 Q* l4 i9 [ Y! Y& ^> sales based on the same product and approval. We are interested in the
: {+ g* ]$ |' g9 z* y" W0 q* Q1 { > following specifications:
0 n8 f* L [7 I' F. w >
4 Z$ C! E6 b, c) c> - 2 inputs at the Transmitter with three possibilities;
v% I1 z" b1 x3 Z" y > 2 analog
$ }, m( s* U* o7 G > 2 digital
4 R/ {* M0 i% `' R) H( a+ A8 V > 1 analog and 1 digital
# l9 D+ a; R* r& V* z" g* [ >
- u5 ^" T, Y, q3 w0 K# P> - 2 outputs at the Receiver with three possibilities to match inputs
3 @0 G Y+ F8 n8 D6 T >
- T# T) I& i5 ^8 p8 O: H' X> - Ability to configure/define analog Transmitter input ranges through
0 B* g; v8 ~- \1 M: g$ }" p > simple programming method to correspond with full-range analog Receiver
4 `) j3 L( S1 i1 t. u> outputs (0 - full voltage).
" r* c! v4 g2 c0 \ j>
+ E: w I. @! ]! q% P1 s& m > - Ability to configure and set sample rates for the inputs.
3 W% Z8 r; }9 N8 ]% A: Z>
' v# C0 z, ~: M/ O+ F> - Digital output on Transmitter that turns on during the sampling period.
0 ^" A/ ~. n- S! J >
+ d& F0 h' E& h# w/ a* l > - Ability to configure a power saving Sleep Mode in the Transmitter by
& D, s/ o; G( t. A- G8 k8 H( E& W, j> both software control and input hardware control.
. I- I; a% g% \3 ]! a6 P >
2 n: k& K3 V) a9 [; V4 w) r> In order to configure the units, we would need a way to make the
3 G1 t1 ?4 z0 h7 L> settings. This would preferably be from a computer terminal so that
; } p/ k8 ?, q$ I7 X( b> configurations can be saved or easily duplicated for production volumes.
p$ }, v' z1 r4 l# Y" v> The units should be small and compact with shielding, and able to mount
! _1 U. C2 w% c8 F Y% P2 t> to a printed circuit board with header connector.
6 `3 V' |( j4 L1 ~. }; X. Y>
( M. ~3 f' F+ z9 v; ?( ?> At this time, we are interested in samples of a pair of modems that
! d9 O+ {5 _! W> might be similar to this proposed system. We do not expect that you
2 P) K* D* S/ B9 O& h > provide all of these specifications at this time. I can describe our
" U. ?, Q- Y" ~8 J, r% ~ > immediate application needs in the next email if this project is of
3 l( A4 P( a4 Z3 V8 b" ` > interest to you. Perhaps you can make the samples by those
( Q- y% N+ Q9 d1 Y. z> specifications. This will allow us to test your radios before we move
7 Z$ o( X( ^$ x/ J8 L > forward. We are interested in your 900MHz radio to start.
" ~. w' k# P+ k6 Q9 E( l
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