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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

: H4 ~2 Y4 K+ M1 h4 a 客户要求如下,如果哪家工厂可以做,请和我联系
; ?3 w1 b# U4 w6 c+ m; l > The application that we have in mind is similar to others that we commonly
1 N- E0 y7 W! d( k5 s, ?> have. If we were to pay for FCC approval, we would want to use the modem
# `3 ^' l* h* R5 i, f6 a/ k# u) d> units in all similar applications under the same approval number.
- I8 M' F, Y& y+ P1 U3 R" Z8 o3 i > Therefore, we would like to be able to configure the units to a specific
4 P2 {4 T0 h. P- i& K! e> application. For the business that we do, this approach will yield more
: r' \) j7 r" |# d% l* t0 M > sales based on the same product and approval. We are interested in the
2 m, ~$ D# k9 {5 V3 i r> following specifications:
a/ y9 f' z! E* ^+ ~' Q>
[( I& g; X; W: b > - 2 inputs at the Transmitter with three possibilities;
0 ?8 s( o7 u: b- K5 R, W > 2 analog
L5 X* R4 z: ]6 | > 2 digital
: S' i. Z6 Y5 _" u6 Y> 1 analog and 1 digital
2 o2 K: V: z) G# q! Y: m5 g) L0 J>
- v6 V) l! n. J1 M6 i> - 2 outputs at the Receiver with three possibilities to match inputs
1 X: f( N/ S- p7 z5 f& U5 }0 S>
! Y' J: B/ C, B* W > - Ability to configure/define analog Transmitter input ranges through
' T1 b0 K% C; }# Z > simple programming method to correspond with full-range analog Receiver
4 r9 q/ L ?( l. Z# X > outputs (0 - full voltage).
( c* e6 s6 ?" K$ w >
$ e1 q# o1 ?! A7 k6 F> - Ability to configure and set sample rates for the inputs.
5 Z7 V- g/ |& P >
! h" }9 x0 {$ A! a > - Digital output on Transmitter that turns on during the sampling period.
5 E. n5 u' ]& ~7 F5 [6 S: _2 I >
& W0 l- u, v# K/ d, r P( { > - Ability to configure a power saving Sleep Mode in the Transmitter by
3 t/ {5 p" }: g4 U1 A> both software control and input hardware control.
) ~4 Z% ]0 U' [" K* d/ ^ >
& h$ a8 ?4 R6 V1 d1 n& f > In order to configure the units, we would need a way to make the
8 O) ^: ~' `6 b > settings. This would preferably be from a computer terminal so that
( [/ A7 ? {$ v( v- A! J> configurations can be saved or easily duplicated for production volumes.
4 r0 \" M9 `( t6 [ > The units should be small and compact with shielding, and able to mount
# @1 ~; S% F8 Q# J6 N$ Y> to a printed circuit board with header connector.
2 z$ U: V4 H5 y0 n0 t( k4 ]+ e >
7 i) {- a- m3 u( Y: G5 B, U: C% @> At this time, we are interested in samples of a pair of modems that
: \- a( y. e6 _7 n8 v& k* q > might be similar to this proposed system. We do not expect that you
6 `) |8 e+ _, I' Q$ q> provide all of these specifications at this time. I can describe our
5 K; o1 a2 c9 e. a1 x2 z6 y$ W> immediate application needs in the next email if this project is of
" T& t1 K5 k; M> interest to you. Perhaps you can make the samples by those
' I2 V- x5 g! N) S4 V4 J> specifications. This will allow us to test your radios before we move
$ s8 k: n0 D- h1 A > forward. We are interested in your 900MHz radio to start.
3 s+ E8 X) [: \+ X- y
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