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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

' F% K7 Z) U% N1 e5 @7 T" F& _客户要求如下,如果哪家工厂可以做,请和我联系
" d0 J5 U& Q1 F+ L. Z3 U3 d> The application that we have in mind is similar to others that we commonly
: t$ ] n- @7 a _ > have. If we were to pay for FCC approval, we would want to use the modem
; g# T2 G" Q1 R# p+ Y3 j- q/ T> units in all similar applications under the same approval number.
2 n, J, l5 a2 |/ ~ > Therefore, we would like to be able to configure the units to a specific
! b. A8 x8 \, B$ o( P. _* B! |> application. For the business that we do, this approach will yield more
: ~8 n1 E" _; L> sales based on the same product and approval. We are interested in the
1 Z, f3 ^' _' |; e > following specifications:
9 Z N* U2 N. j >
K; `* W# A& s" r. R& V> - 2 inputs at the Transmitter with three possibilities;
, V2 K' X9 _8 [3 L* Z! ~, }5 Z> 2 analog
/ w8 u; x7 ~+ ]/ t, Q; w > 2 digital
- d0 m7 r* }/ P4 ^ > 1 analog and 1 digital
9 W5 v1 k% U! ?5 \6 g( R B >
: F/ b* D# {3 b> - 2 outputs at the Receiver with three possibilities to match inputs
& A+ |8 K) U: b2 S>
" K" ^) ?& Z6 {3 F( w6 P6 C& t > - Ability to configure/define analog Transmitter input ranges through
9 g* u4 | X& z# {9 ?7 E > simple programming method to correspond with full-range analog Receiver
) X p, s/ m/ F7 z1 Q> outputs (0 - full voltage).
q- }% D- b7 V0 o) }" t4 ~! ^>
8 `/ L" n- E0 V* f. b. F> - Ability to configure and set sample rates for the inputs.
& K( T# j/ p% o3 T, U4 G5 X>
3 P7 A4 T$ f( `# t> - Digital output on Transmitter that turns on during the sampling period.
8 V' g5 `: C, y- M# d6 E, E2 s>
+ d/ H# r2 M4 {) ~5 K0 K > - Ability to configure a power saving Sleep Mode in the Transmitter by
# p7 l# M0 p+ N7 m; U8 o2 E+ M > both software control and input hardware control.
5 i; ?6 l8 m2 O, V- ?>
; A, l6 B" o5 F! Z$ s4 D5 f > In order to configure the units, we would need a way to make the
& ^5 j) _7 h6 E, _6 U4 e& ^ > settings. This would preferably be from a computer terminal so that
% x% `- A0 [1 M, c0 I* w> configurations can be saved or easily duplicated for production volumes.
@/ ]; @1 J& i> The units should be small and compact with shielding, and able to mount
2 ?9 f% k. q# I, h4 k5 h > to a printed circuit board with header connector.
* S0 `5 s8 v' O>
* t# F( |& h, S/ Z! {- S> At this time, we are interested in samples of a pair of modems that
% U! V( s! H& |; Z7 S; C y > might be similar to this proposed system. We do not expect that you
9 C; Q7 {% y) `2 W+ P! P> provide all of these specifications at this time. I can describe our
! Z K! r9 Y: F6 ]7 V7 c8 d! { > immediate application needs in the next email if this project is of
3 Y: N% D* T6 m > interest to you. Perhaps you can make the samples by those
) O- O& f+ o+ K. ^/ z> specifications. This will allow us to test your radios before we move
0 _& U7 w; E+ n& e& }- w > forward. We are interested in your 900MHz radio to start.
& c8 M& V) K$ K! D, S" N
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