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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/ U8 e2 z3 W( F6 k/ g T 客户要求如下,如果哪家工厂可以做,请和我联系
' S7 v4 g9 V) |2 c9 g: U4 @ > The application that we have in mind is similar to others that we commonly
& q% p8 Q- U+ c" t' G> have. If we were to pay for FCC approval, we would want to use the modem
+ ^$ d' J& a4 }> units in all similar applications under the same approval number.
; P( {0 d6 y+ U/ B" X8 N> Therefore, we would like to be able to configure the units to a specific
6 p! M+ N5 H" n/ Z5 F1 h0 m > application. For the business that we do, this approach will yield more
# g2 |% D5 {1 } > sales based on the same product and approval. We are interested in the
/ i; U$ U0 {7 `: e3 b > following specifications:
+ ?$ Q; Y$ m5 U2 r' \: X>
4 g; ] _2 F C > - 2 inputs at the Transmitter with three possibilities;
" b B( Y( v" B! R, t- k) O' \3 R6 x> 2 analog
, D; g M# K8 y0 E: W5 j4 r > 2 digital
6 q- {; m5 w7 t1 _! {+ i > 1 analog and 1 digital
) e/ x1 q. O3 z& C' n* T7 ]>
( b. F0 W* ~) }# |) n7 g$ ~ > - 2 outputs at the Receiver with three possibilities to match inputs
5 ]; N. U4 y B9 ~ K >
3 B5 o3 c. o9 A+ ^> - Ability to configure/define analog Transmitter input ranges through
2 C. {3 h5 {) W+ o" M$ i: p! y> simple programming method to correspond with full-range analog Receiver
; |. [8 D' \- _7 h" @! O/ t7 l> outputs (0 - full voltage).
; l) V% }4 _% R$ d4 ?" U4 s& ~>
% V' @* n. v% ^ > - Ability to configure and set sample rates for the inputs.
; K1 v+ a) F5 p! [, c0 P8 `& G0 K3 U>
: W0 H" K+ n, Y/ l > - Digital output on Transmitter that turns on during the sampling period.
- {) |: Z. H+ k9 o& f) _, M7 O>
7 L9 c# e7 j+ t/ y, g8 U > - Ability to configure a power saving Sleep Mode in the Transmitter by
2 q4 _9 j% P1 G: H# s8 O' ^4 z > both software control and input hardware control.
3 u2 u+ M. f) T/ a8 L% ~ >
+ [% d$ M% W: S% ^7 x$ x# ^> In order to configure the units, we would need a way to make the
8 F& S: a% T0 Q4 A6 F$ N> settings. This would preferably be from a computer terminal so that
E$ P) y% a7 P" E4 q1 g. R. Z > configurations can be saved or easily duplicated for production volumes.
$ o, m. H4 O- H/ i5 Y" A8 M> The units should be small and compact with shielding, and able to mount
$ p& V' h$ H' A6 Q8 u4 w" ~( g > to a printed circuit board with header connector.
' ?5 O/ r `" K6 l1 a>
( j: _, t5 ~& r1 ~3 J> At this time, we are interested in samples of a pair of modems that
" r; W# F( ~8 B0 I> might be similar to this proposed system. We do not expect that you
! C, |. x4 q8 i: z8 b9 V% ^> provide all of these specifications at this time. I can describe our
) w" _; O2 M7 a( C- M> immediate application needs in the next email if this project is of
1 [5 |8 d4 K( D9 L! p" F > interest to you. Perhaps you can make the samples by those
( r4 f* l+ @/ b8 \; z$ v1 E5 M# s > specifications. This will allow us to test your radios before we move
( ]1 T* i. T* m3 `! Q9 _& f > forward. We are interested in your 900MHz radio to start.
2 Y+ L. {0 f0 [ r1 x
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