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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

4 \" }5 ]) @3 c0 l' F5 ~, J客户要求如下,如果哪家工厂可以做,请和我联系
% N5 {7 D3 y$ B7 j > The application that we have in mind is similar to others that we commonly
4 C% u' O- I/ Y> have. If we were to pay for FCC approval, we would want to use the modem
' W" Y" \$ T/ ?$ @9 l > units in all similar applications under the same approval number.
1 O4 u. k" _# f1 o3 Q/ {1 L6 t$ L4 u > Therefore, we would like to be able to configure the units to a specific
+ u7 _. e8 |7 s: L0 d2 p> application. For the business that we do, this approach will yield more
; Z# A( [- ^1 }3 q u6 Q/ t > sales based on the same product and approval. We are interested in the
) H$ Z. Z3 z5 V5 b > following specifications:
8 b) i; d+ x3 |' ^9 t>
, ~2 b5 x6 D) [/ C* X> - 2 inputs at the Transmitter with three possibilities;
/ s% ?- Q1 v" U% a) N6 G > 2 analog
/ ~5 _, z! c T4 q4 H7 @3 u, ~3 M > 2 digital
6 D& ?0 z- B1 I' Z) R3 u. j1 S > 1 analog and 1 digital
# }9 Z. Q' X z6 m2 c# H4 L >
/ b2 t$ w- _4 e$ D; z' G> - 2 outputs at the Receiver with three possibilities to match inputs
5 J* t: M- Y5 f6 i3 w1 ~! D# O5 L >
! C9 ]' ?7 z. I4 I9 c; W& q8 I> - Ability to configure/define analog Transmitter input ranges through
* V9 o& @( W* s8 Y> simple programming method to correspond with full-range analog Receiver
. j7 j; Z4 a" i' j: m# K% V4 w9 \9 i> outputs (0 - full voltage).
. d2 G, l+ h C% ^ >
& X8 T7 p2 B5 M4 E' D( H > - Ability to configure and set sample rates for the inputs.
$ X8 E9 F- F; v7 j$ ?* {3 g>
$ T1 T% g$ e3 p% n0 H/ \# x. m > - Digital output on Transmitter that turns on during the sampling period.
6 y7 h, r5 z1 V" R1 e1 b, X>
# \0 J. z5 ^& m6 m7 X> - Ability to configure a power saving Sleep Mode in the Transmitter by
8 X+ R2 p$ C- G; {0 e > both software control and input hardware control.
' F/ \* ~) Z `8 }' c: L+ d >
# H: A! F3 i8 r: e > In order to configure the units, we would need a way to make the
! z, m, J$ } q) ?1 J> settings. This would preferably be from a computer terminal so that
" M6 X: x! e& L0 o- m A> configurations can be saved or easily duplicated for production volumes.
3 ?/ m* z! R8 A2 d* d1 F > The units should be small and compact with shielding, and able to mount
' z* T1 T6 [9 _( P- ^7 a) E> to a printed circuit board with header connector.
4 L) @4 c5 u# f- a4 N>
# t8 [; ~( f( `0 @) K( O/ P > At this time, we are interested in samples of a pair of modems that
8 `5 h7 ?+ ~5 t/ n4 G* f > might be similar to this proposed system. We do not expect that you
, ~# d9 b6 D" {0 ]4 p* n5 M; }> provide all of these specifications at this time. I can describe our
" h- ~! W1 R* |( u7 Z > immediate application needs in the next email if this project is of
% A2 O' J, y* j > interest to you. Perhaps you can make the samples by those
A+ H) z( q) k' k+ e" ?> specifications. This will allow us to test your radios before we move
, m- _- H* L8 j6 f > forward. We are interested in your 900MHz radio to start.
& ]2 ]. \3 F3 ~2 p& S& [1 x
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