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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

% N0 F5 M [2 d# T 客户要求如下,如果哪家工厂可以做,请和我联系
& H. t1 Q1 k* o: i- H > The application that we have in mind is similar to others that we commonly
9 I0 {* g3 p. ~1 c6 M5 e0 | > have. If we were to pay for FCC approval, we would want to use the modem
# V7 ^+ p$ H; y; n, s1 y) U0 l> units in all similar applications under the same approval number.
0 O& Z& U" [7 x+ Y0 G% _+ [ > Therefore, we would like to be able to configure the units to a specific
! h2 J7 {9 J7 E2 D2 { C u > application. For the business that we do, this approach will yield more
- k0 ?6 b& Z+ P7 v> sales based on the same product and approval. We are interested in the
3 G9 D: }( r4 g > following specifications:
" t4 s; H$ G% h# U5 p( z% G0 O2 Z>
% t0 `2 N% \6 B$ l/ W2 z > - 2 inputs at the Transmitter with three possibilities;
6 F9 ]- K& U' i0 P& p* ^ > 2 analog
# e- D- o- _/ i' `7 r Q; h > 2 digital
, f4 e, Q+ Q* j3 P > 1 analog and 1 digital
1 c9 L/ s9 o9 { >
3 e' u% c; `# A) q0 T6 ^1 ^2 a > - 2 outputs at the Receiver with three possibilities to match inputs
& p3 |7 F% C+ o% ?0 C1 t >
' y) x) u- B/ u5 j e" ] > - Ability to configure/define analog Transmitter input ranges through
0 Z. |( J* b( {* H+ p! a5 G7 P > simple programming method to correspond with full-range analog Receiver
3 _1 }+ D" h: _+ [; r! E9 A> outputs (0 - full voltage).
* ]$ r# T r0 U0 u. f2 ~3 r0 h>
0 y9 J1 W7 O3 V1 z4 o, f- B > - Ability to configure and set sample rates for the inputs.
% w# H C) H2 e/ k>
" U4 a9 [8 d' E$ J, h/ ^& O> - Digital output on Transmitter that turns on during the sampling period.
3 Q5 n4 {" w9 V' R' F m>
+ k. u2 ?$ H" a1 L> - Ability to configure a power saving Sleep Mode in the Transmitter by
) Z/ H6 j1 k) R+ z0 |' g > both software control and input hardware control.
i- x: k8 v) k% w >
4 t2 \9 D* G4 T6 O> In order to configure the units, we would need a way to make the
# V5 n. D: x9 M+ N > settings. This would preferably be from a computer terminal so that
1 T; Q9 k; y% Z( p4 Z6 Y% B > configurations can be saved or easily duplicated for production volumes.
8 C, P$ e0 q( Z' m! U1 g: u; O% _ > The units should be small and compact with shielding, and able to mount
! g9 K" s5 c6 D> to a printed circuit board with header connector.
1 B6 H9 n; Z$ f x& w6 J( G8 m% D>
0 M8 `# c; [' i9 P+ m3 C" t+ S g > At this time, we are interested in samples of a pair of modems that
; b4 x; y! B: g9 R9 W> might be similar to this proposed system. We do not expect that you
0 f' ?: l4 \# j > provide all of these specifications at this time. I can describe our
! o# x* s% `* P3 F/ a) y7 T( t> immediate application needs in the next email if this project is of
8 m& g7 T9 Y8 z > interest to you. Perhaps you can make the samples by those
1 j% O& |9 |$ a > specifications. This will allow us to test your radios before we move
! ^- y% ?6 a' H > forward. We are interested in your 900MHz radio to start.
3 F7 @0 U/ ^& Z% v
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