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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

" J# j2 h4 R* i& f2 j客户要求如下,如果哪家工厂可以做,请和我联系
! ]# P7 Y# B! D1 i; m> The application that we have in mind is similar to others that we commonly
+ Z( J U% x _' Q- ~> have. If we were to pay for FCC approval, we would want to use the modem
7 q3 }/ q+ Z9 a6 \ f; a > units in all similar applications under the same approval number.
# u' i5 S! s; J( @. |1 e9 w: Z> Therefore, we would like to be able to configure the units to a specific
. z- V; k- m; d% |4 O. X > application. For the business that we do, this approach will yield more
' K( N W! J& u& t > sales based on the same product and approval. We are interested in the
* @ t! Y, h6 E8 Y; Y- g) w' L* v6 r> following specifications:
2 V' z: Q; n G9 D* H >
/ k/ |8 |! T6 p, T9 R; Y > - 2 inputs at the Transmitter with three possibilities;
6 I( t8 n( W4 I4 m! p* U > 2 analog
! S* M( v( V) f > 2 digital
) |* I/ P4 |' d+ H) I> 1 analog and 1 digital
/ g. P( Z/ @ q; `, T>
5 a3 ?: m$ m/ t$ ]6 u+ \- v> - 2 outputs at the Receiver with three possibilities to match inputs
2 s6 E, d7 s' q* Q>
6 _# r6 w; n7 u; U; \> - Ability to configure/define analog Transmitter input ranges through
1 t$ ?1 k9 d) z$ c& O8 ~) B+ b- A > simple programming method to correspond with full-range analog Receiver
# e! \& Q' a b" }# p" c6 p" T% G$ g4 G> outputs (0 - full voltage).
5 \% k' L/ \7 L >
7 A& G+ A" v! M& k) ]" \> - Ability to configure and set sample rates for the inputs.
$ e, T2 Y1 J2 s5 y# B# B1 r7 q>
$ s# Q- s/ K" P> - Digital output on Transmitter that turns on during the sampling period.
0 O, p! A" E4 _1 L: Z >
5 O9 |- H+ G3 P; d& g, k: G3 V6 m3 N > - Ability to configure a power saving Sleep Mode in the Transmitter by
0 }# e7 ^4 D! B6 p. n7 h. [> both software control and input hardware control.
! P. f# y x( g( \ >
5 H/ i0 e$ W! {) V > In order to configure the units, we would need a way to make the
( E% N7 }7 P9 q > settings. This would preferably be from a computer terminal so that
7 _2 t9 n0 g0 V6 V, P7 n! E; `5 ~> configurations can be saved or easily duplicated for production volumes.
7 q$ q2 v+ n- X0 s> The units should be small and compact with shielding, and able to mount
- O" m v' {6 R% v > to a printed circuit board with header connector.
' @: T2 d( Z$ ?8 s! j >
6 C7 U2 c, V& P- `; i: O8 e> At this time, we are interested in samples of a pair of modems that
/ C% d; F; T% Q& f" M3 O4 B, _% E > might be similar to this proposed system. We do not expect that you
$ r! a& ^0 Q& V! q7 O> provide all of these specifications at this time. I can describe our
9 z3 B# Y& X y8 Q6 C+ s/ e7 D, _> immediate application needs in the next email if this project is of
+ a+ @6 v! S2 |) X' ?> interest to you. Perhaps you can make the samples by those
4 a1 n& }4 Z1 R% I> specifications. This will allow us to test your radios before we move
( a1 D" L3 f Y& Y > forward. We are interested in your 900MHz radio to start.
0 Z2 Q- z; i: p" a
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