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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

6 Z/ X* x l/ l Q9 j" O 客户要求如下,如果哪家工厂可以做,请和我联系
* U3 P7 i6 ?5 a6 W& P) H> The application that we have in mind is similar to others that we commonly
: @7 f- c7 q0 E- y4 F& x > have. If we were to pay for FCC approval, we would want to use the modem
2 D# m; Z. J1 T$ c3 g4 k5 C > units in all similar applications under the same approval number.
( L+ {; t* g) w) A6 s+ T" l > Therefore, we would like to be able to configure the units to a specific
) {( A: A6 E$ |6 v, V! U > application. For the business that we do, this approach will yield more
. H$ Q: k& b4 W+ p8 \) b> sales based on the same product and approval. We are interested in the
" _3 y) [. T; K6 w7 ?) G- @> following specifications:
4 Y: U6 n7 X4 M, L2 d! l>
/ d) \6 c, v8 z6 Y0 m' u> - 2 inputs at the Transmitter with three possibilities;
% t8 N8 q7 c# Q > 2 analog
) }8 j7 }- m- U" R0 I > 2 digital
* i+ L' l6 ]+ h w$ r |> 1 analog and 1 digital
% A- o, L4 l! D" D/ V# q) d>
; h) x* @+ t6 r1 p7 E- F, L4 f> - 2 outputs at the Receiver with three possibilities to match inputs
( Q8 \- \1 E* M" A >
1 a& b8 [! x1 u/ B> - Ability to configure/define analog Transmitter input ranges through
# N8 [2 n& d6 j2 V0 s5 G5 H > simple programming method to correspond with full-range analog Receiver
4 P0 R, \8 q+ l* p4 T g/ M( N > outputs (0 - full voltage).
4 _+ ]4 z1 q/ |& H& G>
6 H7 C4 E# P. @2 g> - Ability to configure and set sample rates for the inputs.
( P* e8 j' F0 k: d W >
, e9 Q6 k" w9 _, s( l3 Z2 S' B> - Digital output on Transmitter that turns on during the sampling period.
* a8 G. y* k) \' g& q" i/ d >
+ n, V5 l n; a6 A+ J8 W: C2 n> - Ability to configure a power saving Sleep Mode in the Transmitter by
+ K2 b9 x7 z2 B" K8 [9 C( s> both software control and input hardware control.
/ S* F( @) F9 a1 X( M/ L3 n( S>
/ R' o; E8 B3 q; X! D" z> In order to configure the units, we would need a way to make the
' R- o5 @, {1 r* \( g> settings. This would preferably be from a computer terminal so that
9 Z' t0 q# x) a8 e# ] V* \$ r > configurations can be saved or easily duplicated for production volumes.
- B" d u& j! D$ [6 |> The units should be small and compact with shielding, and able to mount
+ E; K' ]5 P" c5 _- S/ K7 g > to a printed circuit board with header connector.
& g2 n* s$ h9 Q- y1 m+ X>
' Q+ {' }" z5 B$ j! S$ U > At this time, we are interested in samples of a pair of modems that
@$ L$ D1 I, o- y. | > might be similar to this proposed system. We do not expect that you
% i6 G0 y9 i" x7 R! C# q > provide all of these specifications at this time. I can describe our
# f! Q, ^( c7 t$ @7 l" P, } > immediate application needs in the next email if this project is of
' T: @! J: ? d+ W0 ~( \, q> interest to you. Perhaps you can make the samples by those
3 D$ V4 `6 n- \& V* M> specifications. This will allow us to test your radios before we move
/ [: Y4 ^: X" F8 d> forward. We are interested in your 900MHz radio to start.
; s; V6 _" r! d- E. G1 ]1 ]
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