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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

* a1 W L$ E6 I3 {: l" u1 f 客户要求如下,如果哪家工厂可以做,请和我联系
( t7 i( J% F. @ > The application that we have in mind is similar to others that we commonly
7 `' N5 V4 B% h" v: h0 q > have. If we were to pay for FCC approval, we would want to use the modem
2 T+ j7 n* q, B# ?' w* E) R+ D> units in all similar applications under the same approval number.
! ^5 x$ j0 R0 v8 ?8 Q. P9 G> Therefore, we would like to be able to configure the units to a specific
% A5 l6 ~! s- u" c" a* @ > application. For the business that we do, this approach will yield more
9 ^6 q5 v. w5 k1 P( a> sales based on the same product and approval. We are interested in the
. z% r, i! q) g> following specifications:
1 ?; b s% W( S8 O: k7 _$ F9 X>
2 P: r3 L ~* k* C4 c' |: X> - 2 inputs at the Transmitter with three possibilities;
4 f9 C3 ~: O6 Z- M7 o> 2 analog
3 b4 }# R8 P# T; q> 2 digital
s1 Z2 u2 O& o& `5 D9 I5 _> 1 analog and 1 digital
- k# H/ H, y! N, v, E5 R >
/ i3 O) u6 G/ _) O > - 2 outputs at the Receiver with three possibilities to match inputs
( N x* B5 M9 ~, {. \) u& c3 k8 } >
, X* w7 N7 J# M& S> - Ability to configure/define analog Transmitter input ranges through
. p0 p5 r3 }3 z7 m3 X+ Q > simple programming method to correspond with full-range analog Receiver
- }& y/ t2 K7 N0 j> outputs (0 - full voltage).
7 m- \, u ?0 N>
% w1 \: w; N6 j) M1 q2 Q$ H> - Ability to configure and set sample rates for the inputs.
8 ^9 P9 o7 l# w# E9 o \3 B9 b >
& O/ L \6 s1 ^, x5 ] > - Digital output on Transmitter that turns on during the sampling period.
: ^1 u0 P0 F8 D% R5 ?4 k, I: P) ~ [ >
+ W# w2 V* H `9 O > - Ability to configure a power saving Sleep Mode in the Transmitter by
b# V6 z& |4 n; t: d4 M> both software control and input hardware control.
* F" n% M( o3 A) r0 j1 \0 w0 N >
& F1 M4 @7 f! B" k: K C> In order to configure the units, we would need a way to make the
, t# A# _) H" `8 } > settings. This would preferably be from a computer terminal so that
% Y& z! M: J9 j v. y$ I, U: ~2 v E > configurations can be saved or easily duplicated for production volumes.
& i7 A# P* {. ^ > The units should be small and compact with shielding, and able to mount
{+ T* y7 W7 w6 ^+ H! ]0 [ > to a printed circuit board with header connector.
) i: Y4 S2 X9 ~8 p! v; s>
! F% \) [& L/ I9 i. Z, n > At this time, we are interested in samples of a pair of modems that
7 k5 ?. ?2 M. r1 Y > might be similar to this proposed system. We do not expect that you
8 m% L7 ^* [ H# l9 H" N# [> provide all of these specifications at this time. I can describe our
/ {/ {# L1 p- x7 g: o > immediate application needs in the next email if this project is of
# A! W1 O h" I' N1 k5 {3 B8 p > interest to you. Perhaps you can make the samples by those
1 Q1 @7 g8 x1 |5 h- c2 ]6 K7 p) z> specifications. This will allow us to test your radios before we move
4 |3 V; ~4 p3 @> forward. We are interested in your 900MHz radio to start.
' v2 p q, U! W
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