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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

) L" J; b$ R, u M 客户要求如下,如果哪家工厂可以做,请和我联系
+ e8 e+ V2 b3 R p# ^/ n( Z6 r4 k > The application that we have in mind is similar to others that we commonly
7 U. Y0 j" E8 Z0 P> have. If we were to pay for FCC approval, we would want to use the modem
1 \+ \+ b* Q6 d0 I$ L7 E6 v> units in all similar applications under the same approval number.
7 B+ k# O1 ?6 w3 p' Q3 y > Therefore, we would like to be able to configure the units to a specific
* N" h7 v- V% h) w> application. For the business that we do, this approach will yield more
k, ]0 q, X2 R. }" h > sales based on the same product and approval. We are interested in the
& p* x; ^5 E8 ?4 B/ Y$ x9 c > following specifications:
7 p% D5 D/ S& a% a5 Y2 Y) F8 D7 B9 ^ >
9 O- U, b- v9 Z. |( u& K j8 n) f# c > - 2 inputs at the Transmitter with three possibilities;
6 c1 j' s. h. Z( H> 2 analog
" c7 n5 B1 u4 Y ^) r) E7 N B3 H$ u' T > 2 digital
4 @: x$ k3 Y: N/ f* l5 b+ l# [ > 1 analog and 1 digital
7 X3 V3 T, d8 @5 G% H! Q6 }' M& |( U >
1 X) y( G! v# h > - 2 outputs at the Receiver with three possibilities to match inputs
k) r$ M% h. E( v>
+ s! u( P/ p, ]3 u9 l. H> - Ability to configure/define analog Transmitter input ranges through
" O6 I! ^$ W0 J- z" O8 [> simple programming method to correspond with full-range analog Receiver
; h5 o+ ^8 I; S& ~. P" {> outputs (0 - full voltage).
8 ^5 L. A6 c$ U. v- \2 `- Q7 z >
. y/ b; D- ~" E0 ~! Z9 \ _6 S. {> - Ability to configure and set sample rates for the inputs.
* g9 z: y- \, c, v' T2 @>
6 Z: K: \$ w( S8 P! m( n9 W5 i> - Digital output on Transmitter that turns on during the sampling period.
# u) E2 {, M; x# w% L# \# t>
; q: [. p% H2 H/ d' \5 T! R > - Ability to configure a power saving Sleep Mode in the Transmitter by
: [; o# T2 l5 ?: ^1 U: U > both software control and input hardware control.
1 @& i z/ U) C& T' M" ?>
" T6 b. U. d# |; m, J/ t$ ` > In order to configure the units, we would need a way to make the
! G1 f; |" o0 {- Z' O > settings. This would preferably be from a computer terminal so that
. V4 d( g5 v/ _) m7 N> configurations can be saved or easily duplicated for production volumes.
4 J, c3 z+ ^' Z% t; m" @% e$ _ > The units should be small and compact with shielding, and able to mount
P( _( W7 Z4 t& f> to a printed circuit board with header connector.
- p! i3 f( I4 s6 V! E: ^>
* K: }) v& _- O2 Q7 s> At this time, we are interested in samples of a pair of modems that
: b7 T$ h4 Q8 Z > might be similar to this proposed system. We do not expect that you
: h+ y+ t5 U* v> provide all of these specifications at this time. I can describe our
9 O* k; I9 s) Q& x> immediate application needs in the next email if this project is of
2 v! K2 c1 b8 E% X* E> interest to you. Perhaps you can make the samples by those
- N9 H3 y; J+ N > specifications. This will allow us to test your radios before we move
. x. x" E' W, s w> forward. We are interested in your 900MHz radio to start.
4 A4 L. s' g D4 D1 |
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