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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

8 I) p) ^4 [0 F. w: x! ? 客户要求如下,如果哪家工厂可以做,请和我联系
/ K+ N2 c2 N- {8 w+ g) H1 P8 h > The application that we have in mind is similar to others that we commonly
& c, h$ I/ }. Z4 P7 I> have. If we were to pay for FCC approval, we would want to use the modem
. ^0 Y( V D( F- G8 ?5 O > units in all similar applications under the same approval number.
; e0 s2 W1 U6 A5 Z! H' X6 P > Therefore, we would like to be able to configure the units to a specific
7 s* K7 W0 W" n, a6 Q) [9 a4 c' b2 O# \ > application. For the business that we do, this approach will yield more
6 b8 B/ \. z! f% ]3 q( h> sales based on the same product and approval. We are interested in the
8 X; N5 N- V/ Q; M! n5 R > following specifications:
5 O7 r: ~" P6 N( i/ [* B' Y >
0 z) O: L E: \, N' c9 s> - 2 inputs at the Transmitter with three possibilities;
! f- p: _5 s, h > 2 analog
$ o. ~0 G; N8 [/ W* ? > 2 digital
( c" c) r/ @0 `3 B > 1 analog and 1 digital
: X; t. n- ]! X& z, M |: a6 z. j7 R>
1 ]3 j! }* q+ L* |! ?1 Z" t+ i: ? > - 2 outputs at the Receiver with three possibilities to match inputs
4 g: d4 ^2 q0 e: V+ L' R/ X# `>
1 w- E, [9 O# v9 ?- h> - Ability to configure/define analog Transmitter input ranges through
2 S2 ?, q3 s" x5 i: q. F" J: H" B' d > simple programming method to correspond with full-range analog Receiver
' a1 m/ e4 e1 ^& ] ^' R) U" j- E4 ~> outputs (0 - full voltage).
' W' B5 g& ?1 H- r# J>
) F8 M2 K- O$ C$ W9 d) w; i> - Ability to configure and set sample rates for the inputs.
* d" Y- r, V. M5 P7 ~ P >
$ g( [$ _6 s$ s( T) R$ I8 V' [> - Digital output on Transmitter that turns on during the sampling period.
0 O) U3 Q: g G/ U: _! T >
/ y" D' D# Y1 R* m > - Ability to configure a power saving Sleep Mode in the Transmitter by
) G6 O, _% C, ^6 h; Y* n> both software control and input hardware control.
7 ^& W5 p' o8 f* @% A f>
. n! e2 u1 E( p > In order to configure the units, we would need a way to make the
* w3 ~& I, C* r( {; q0 w: p > settings. This would preferably be from a computer terminal so that
4 v `' y4 L$ Q- w' M) ? > configurations can be saved or easily duplicated for production volumes.
3 V) ] Z, D" f& o' _. o% { > The units should be small and compact with shielding, and able to mount
* j1 A0 V4 p1 f6 \, t* m > to a printed circuit board with header connector.
8 ~. r7 t5 ~8 F7 _- L >
! A- N" J( C! L U" `> At this time, we are interested in samples of a pair of modems that
( g! T: E# Q7 v9 Z1 G8 ~; Y$ B> might be similar to this proposed system. We do not expect that you
/ }1 `4 o3 ~3 h: p7 {% S' m> provide all of these specifications at this time. I can describe our
- }3 s. R' r- D8 J > immediate application needs in the next email if this project is of
. d; i0 g# G% g5 i, a- n9 w > interest to you. Perhaps you can make the samples by those
5 `8 {, I9 m" C > specifications. This will allow us to test your radios before we move
! m, j# I+ ^2 h/ u8 a$ I8 c! @> forward. We are interested in your 900MHz radio to start.
9 V$ |, ], c4 }8 r" ~
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