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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

& I* k( g. V* _) ` R9 ~客户要求如下,如果哪家工厂可以做,请和我联系
, S, k. x' F" H/ e) X, c- r > The application that we have in mind is similar to others that we commonly
2 @, `, u) }; g& l, J5 v) D0 d > have. If we were to pay for FCC approval, we would want to use the modem
" S& W& L: ^7 K0 z5 X3 ]> units in all similar applications under the same approval number.
* X8 t0 W1 b7 I/ f. L4 F% D > Therefore, we would like to be able to configure the units to a specific
9 j' q2 l, x" f: V ?9 a# N# J8 K> application. For the business that we do, this approach will yield more
7 ~5 w0 f. L2 C3 i1 ? > sales based on the same product and approval. We are interested in the
/ F1 @2 _! v& J+ P1 {4 v2 w/ `> following specifications:
+ m: V$ f+ T# B' } >
7 J3 W$ r$ ~) L& `- H( F3 o7 i+ V> - 2 inputs at the Transmitter with three possibilities;
% P; z$ U2 B0 z1 d* z" b* H> 2 analog
' E* G5 S9 p7 G- m2 e& ]8 C > 2 digital
8 Y: R' p- O( N. H% k# c! i" S) i3 ]% D > 1 analog and 1 digital
3 x5 y* i9 o% Y* q/ f9 o, q' i" l >
( v5 g% @, K6 d > - 2 outputs at the Receiver with three possibilities to match inputs
9 V/ i8 S) f% A9 Y' o >
* H0 v1 z/ c V$ e: U$ r( [> - Ability to configure/define analog Transmitter input ranges through
+ a4 F! U+ q& P > simple programming method to correspond with full-range analog Receiver
) X+ O1 D9 U# f$ e > outputs (0 - full voltage).
; M2 P0 j. B& L# `9 E! f>
7 e/ Y+ k6 F0 L3 o1 r" p! w, l > - Ability to configure and set sample rates for the inputs.
- Z5 j1 l9 t! W+ R# Z>
% R- H3 A; S7 Z) ~9 I! Y( U> - Digital output on Transmitter that turns on during the sampling period.
/ H2 J3 m; Z/ v3 G7 s>
) I3 \- E; g# M# j4 |0 Q> - Ability to configure a power saving Sleep Mode in the Transmitter by
- E7 D5 i3 {1 g* s > both software control and input hardware control.
/ ^2 I5 J( {$ s$ p3 ~ >
/ n6 T' N. }; Q4 Q5 ]4 }> In order to configure the units, we would need a way to make the
, F4 l4 ~' q& _) s- _0 B> settings. This would preferably be from a computer terminal so that
8 O( q, M- n4 f > configurations can be saved or easily duplicated for production volumes.
- ]1 ]' u! d7 W> The units should be small and compact with shielding, and able to mount
' b. P/ q; N- H# e6 J3 H> to a printed circuit board with header connector.
" F- r! H0 {3 R$ C Z, z >
( S* s( t% ], F E> At this time, we are interested in samples of a pair of modems that
5 a& c9 F! C8 }7 h+ s > might be similar to this proposed system. We do not expect that you
$ m& K. K3 R6 Q$ g, B5 g. _5 e> provide all of these specifications at this time. I can describe our
; n1 R, `* [- R' `2 r > immediate application needs in the next email if this project is of
1 l7 n* i; I {7 I6 v# l > interest to you. Perhaps you can make the samples by those
8 E" e; b' `. s> specifications. This will allow us to test your radios before we move
# ?- C& k( M! Q5 u3 h7 t( G > forward. We are interested in your 900MHz radio to start.
5 Y8 f9 q3 R# `, X9 n
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