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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

: T! O) N2 t4 Z S5 ]. |* Z8 e 客户要求如下,如果哪家工厂可以做,请和我联系
% ]$ w3 l. ?* O# ^" D" a6 q3 p& H9 j/ c> The application that we have in mind is similar to others that we commonly
8 h- L" b( S7 R! ?6 \> have. If we were to pay for FCC approval, we would want to use the modem
4 c0 \; d+ p3 ] > units in all similar applications under the same approval number.
! n+ H/ P: Z5 T; d, s> Therefore, we would like to be able to configure the units to a specific
: [' e }1 l. A2 m( H9 s$ T > application. For the business that we do, this approach will yield more
, P& R, w, K+ G( F+ ~8 b> sales based on the same product and approval. We are interested in the
( F+ d' S5 y7 Q5 P* }" I > following specifications:
+ Y8 c ?( k; }; m {& u >
2 d9 |2 B7 v& B& U) u( N> - 2 inputs at the Transmitter with three possibilities;
7 U" ]( [: @% J8 k$ _# a4 ^" A. R, z, ^ > 2 analog
# u4 K) G1 [( W$ Y9 N l5 L> 2 digital
6 N5 v! ], Y O7 q > 1 analog and 1 digital
) _* Y) h- _* T* I' B" J >
. x" @7 L# o* L1 O* b. f3 ]6 w* \> - 2 outputs at the Receiver with three possibilities to match inputs
# |7 L: S1 u7 c >
. g3 T# W% h& Q> - Ability to configure/define analog Transmitter input ranges through
" l# V G0 u1 I. Q5 o > simple programming method to correspond with full-range analog Receiver
; X+ E& m$ B7 E x0 ^4 I8 n6 h) M > outputs (0 - full voltage).
# [; [( ^- u# M>
$ T- F, ]: q, X* L5 J/ k9 } > - Ability to configure and set sample rates for the inputs.
3 o" {; N: l* F5 w >
8 \& v% y* {6 [7 i( S> - Digital output on Transmitter that turns on during the sampling period.
2 e; g% A0 G+ h- o >
+ e* w3 S) V$ R, ^+ d: T% s8 B> - Ability to configure a power saving Sleep Mode in the Transmitter by
6 q% T: m/ o2 u> both software control and input hardware control.
6 g3 ^! T" z: x0 N8 r4 C>
( X" b) t9 g2 n5 I; l7 i > In order to configure the units, we would need a way to make the
3 w0 f0 k+ [' m' ^8 P& l. [> settings. This would preferably be from a computer terminal so that
# f. K9 i1 T$ f* g; l > configurations can be saved or easily duplicated for production volumes.
# I4 x" a, G, V' U1 g0 s9 |> The units should be small and compact with shielding, and able to mount
6 Q8 t4 h- i9 K; w7 l% m > to a printed circuit board with header connector.
3 E9 ]" b/ q. J( \: [ >
! n+ `; w* b& B- k/ B4 X> At this time, we are interested in samples of a pair of modems that
; U. v9 r8 u, v! c) B. n* m! A& j' E > might be similar to this proposed system. We do not expect that you
6 k% m( K9 B& Q# E/ q) f' E! |, O > provide all of these specifications at this time. I can describe our
2 N' G' g9 r) n% I4 w1 j > immediate application needs in the next email if this project is of
+ ?/ V) c5 K8 T- X* w+ M > interest to you. Perhaps you can make the samples by those
4 q; U, Z5 j8 t8 ]> specifications. This will allow us to test your radios before we move
8 x+ D& K& G' ~8 C" U1 F> forward. We are interested in your 900MHz radio to start.
. F3 \; ~$ Y9 R& I! C# V0 e: N6 b
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