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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

" G- o5 R! j! ]( D* E) n/ _# |, ~! d 客户要求如下,如果哪家工厂可以做,请和我联系
8 J( b/ e& z1 Q4 E8 d# | > The application that we have in mind is similar to others that we commonly
; K' ?' {5 z) a) o- ^> have. If we were to pay for FCC approval, we would want to use the modem
0 w" y* z2 S' q, D# G2 j> units in all similar applications under the same approval number.
( v! S) x7 K; d7 S% M7 @$ }& F > Therefore, we would like to be able to configure the units to a specific
! @' }( h+ y7 `# H) ` > application. For the business that we do, this approach will yield more
C9 L' i0 W6 g7 \6 A6 x> sales based on the same product and approval. We are interested in the
6 L" ?$ F \2 n7 o+ u* }> following specifications:
* u' K, y; R7 V+ R' ]# \ >
2 ~1 z& K0 w8 j0 V7 }! |> - 2 inputs at the Transmitter with three possibilities;
" c- v% I6 B" L! m4 k: g( s1 D > 2 analog
) y1 H& M, @- M1 [ J. ^$ _! H; U4 T > 2 digital
& b$ g( B: K9 d Y7 R% i& _> 1 analog and 1 digital
8 V9 G1 N' y$ w1 O' _/ M >
. Q7 a; R+ \6 Y, x > - 2 outputs at the Receiver with three possibilities to match inputs
8 T1 ^0 U2 K b5 ~/ t5 | >
9 d9 N9 k: p2 [; B4 T' y. N > - Ability to configure/define analog Transmitter input ranges through
/ T0 d& h, a9 _! N: {( @ > simple programming method to correspond with full-range analog Receiver
9 Q4 A% y7 \/ e0 @> outputs (0 - full voltage).
. a9 t0 v o( A# z" b4 I5 d >
: @4 n: K$ a( W+ y( ^1 w! P> - Ability to configure and set sample rates for the inputs.
5 }- ^& ?* x; b1 |( e& m7 ?8 J! G4 e6 I >
3 M0 h+ a# l7 w- H> - Digital output on Transmitter that turns on during the sampling period.
) v2 Y$ _! a" ]3 F>
! m5 c6 k1 C4 L2 E> - Ability to configure a power saving Sleep Mode in the Transmitter by
$ E% ]# B! w3 v5 a) g( ? > both software control and input hardware control.
: R- R7 y& s3 e! h) [' I >
/ R' c5 J/ g, I' R) ^! o > In order to configure the units, we would need a way to make the
% u5 I w7 R4 C3 g > settings. This would preferably be from a computer terminal so that
4 @& [" {) C0 A& H- L8 o- B > configurations can be saved or easily duplicated for production volumes.
8 D. a$ R t$ g: a* X' X> The units should be small and compact with shielding, and able to mount
( ?5 G2 f# M& n; n5 f > to a printed circuit board with header connector.
h: F _# n1 E5 }+ C>
- N7 g& S4 u6 p5 i/ R; u> At this time, we are interested in samples of a pair of modems that
7 B- o; ^2 M1 B) ]- b> might be similar to this proposed system. We do not expect that you
( i3 J u; b3 L( j: ` > provide all of these specifications at this time. I can describe our
* ^" O3 q4 j+ \) L5 l8 @2 _* K& t> immediate application needs in the next email if this project is of
% }. c7 r$ r, n9 Z4 q8 q; |4 e# E1 c > interest to you. Perhaps you can make the samples by those
- W$ Y/ c7 y: d5 c: U: r > specifications. This will allow us to test your radios before we move
& d; _) C/ w& D) V> forward. We are interested in your 900MHz radio to start.
) q. Y; m3 H' B( Y! K, q
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