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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

; F' s" x) t, {" p: Z( r$ I客户要求如下,如果哪家工厂可以做,请和我联系
* m3 H- ]1 y" Y > The application that we have in mind is similar to others that we commonly
" c! N! r0 U3 E) V- V1 o* v* i > have. If we were to pay for FCC approval, we would want to use the modem
8 Y- G1 ~; R+ m% ]! o2 e5 Y2 w; r> units in all similar applications under the same approval number.
0 j2 s- Z" K/ r/ [9 t( r> Therefore, we would like to be able to configure the units to a specific
7 Y/ [5 Q9 ]2 Z$ q3 D3 {) \+ e> application. For the business that we do, this approach will yield more
* f. m* i9 b$ d; } > sales based on the same product and approval. We are interested in the
% z. n- |8 ^: e; C/ v > following specifications:
2 R' f$ E4 p! @5 \ >
# z# z- h' I5 c! }/ v> - 2 inputs at the Transmitter with three possibilities;
1 V! q2 s3 r" r, x> 2 analog
+ k* v( z' H6 Q9 j5 o4 f > 2 digital
4 D) i: o, s: F > 1 analog and 1 digital
7 Q8 S9 h( Z" P7 a7 N- N >
7 `" w# n; g3 @; t! F" d > - 2 outputs at the Receiver with three possibilities to match inputs
1 M0 l4 ^+ g( E2 A9 u2 i+ K >
; C; u2 M! ^$ i, }7 `8 u [0 { > - Ability to configure/define analog Transmitter input ranges through
' [2 I: z7 g+ F > simple programming method to correspond with full-range analog Receiver
3 ^: K* f: Q2 q> outputs (0 - full voltage).
1 ~! J; w. Q- w+ S6 s d# j>
P/ L: W* \" N" A> - Ability to configure and set sample rates for the inputs.
. c1 x0 D* ]! K' C- O* P: ? e >
( F! ^. B1 _3 t) d6 z2 P; ?+ `> - Digital output on Transmitter that turns on during the sampling period.
! a9 Y1 J% |9 {$ L: e>
( d1 v" a x) i3 x> - Ability to configure a power saving Sleep Mode in the Transmitter by
/ g! O$ g3 Y9 E3 y > both software control and input hardware control.
; J: F0 ~% ]' _& l9 f% s$ f# N >
7 Z1 B5 h4 ~2 `& M; O) a> In order to configure the units, we would need a way to make the
' R7 W2 {2 m+ S' ?2 z. V+ J2 ?> settings. This would preferably be from a computer terminal so that
- F( k2 I, O- \) P2 z( ~# v" _4 T > configurations can be saved or easily duplicated for production volumes.
4 X2 S6 C# s, R > The units should be small and compact with shielding, and able to mount
2 R6 O; q9 A+ T > to a printed circuit board with header connector.
$ I! L& ?9 o3 m) _% N2 i >
8 a8 J' k5 d$ _# \% [3 i> At this time, we are interested in samples of a pair of modems that
9 R; I5 l: j8 ~$ Z ~ > might be similar to this proposed system. We do not expect that you
* j+ r; e+ I! n: m' o> provide all of these specifications at this time. I can describe our
" Z% |" n2 y4 \% O9 G > immediate application needs in the next email if this project is of
9 n- Y0 E! [% U% C > interest to you. Perhaps you can make the samples by those
) E7 L& U+ M& S- E5 O8 u, c- \2 U$ [> specifications. This will allow us to test your radios before we move
$ U/ \7 |) q. z > forward. We are interested in your 900MHz radio to start.
3 W y; W' L8 h5 t7 V6 a$ }- N
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