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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

/ h8 J" V5 m: U1 c客户要求如下,如果哪家工厂可以做,请和我联系
) \ i2 b+ I B6 Q; D0 w> The application that we have in mind is similar to others that we commonly
" x) |# C, v( _9 e7 \ > have. If we were to pay for FCC approval, we would want to use the modem
) y9 n/ K0 K s* A' Z6 B; b > units in all similar applications under the same approval number.
5 p, s# n* O+ a* y > Therefore, we would like to be able to configure the units to a specific
9 c/ L7 k% @0 R' _0 }0 o* K* q* { > application. For the business that we do, this approach will yield more
. X; D: u9 L' @6 a; ]> sales based on the same product and approval. We are interested in the
+ ^4 D1 _; i6 C) L5 i> following specifications:
Y! a' q' d2 g% E( v: D0 P>
/ B' @6 X1 ?' }; _5 p0 c > - 2 inputs at the Transmitter with three possibilities;
0 R" r6 Y) X. o1 Y; v0 Y6 m0 y > 2 analog
' n5 d( I+ X, s" z! R! D> 2 digital
1 @5 u( ^ @/ n7 N- C; r > 1 analog and 1 digital
; f" _9 n- a7 X- a- L/ U. b>
7 U" {+ E8 O E# x) a> - 2 outputs at the Receiver with three possibilities to match inputs
- U$ I B( N0 g* O >
' P3 q1 ?( W5 y0 i( K, ~ > - Ability to configure/define analog Transmitter input ranges through
$ @9 A* F& |* p! b% h> simple programming method to correspond with full-range analog Receiver
! `2 F9 m: G }8 a' s% e > outputs (0 - full voltage).
3 r; j- D" n0 C# J/ m+ `9 [ P>
+ a% \; T, |8 v$ H> - Ability to configure and set sample rates for the inputs.
+ p# ^# \. |8 b l% d>
: {0 d/ s4 s5 W" ]7 l. a1 {> - Digital output on Transmitter that turns on during the sampling period.
) k \1 S, z* b6 c >
6 _4 w5 Y0 l$ h9 ?) l* [ > - Ability to configure a power saving Sleep Mode in the Transmitter by
2 O: p) `2 a5 }5 ^7 F > both software control and input hardware control.
: n: K: {. ]. T2 n4 e* @ >
9 u6 @% q8 [; V4 h4 o1 K7 v$ H- g > In order to configure the units, we would need a way to make the
& S* @6 Q7 `2 H/ }! k( O> settings. This would preferably be from a computer terminal so that
" J4 Z. H: i0 ^) }9 i+ K w > configurations can be saved or easily duplicated for production volumes.
4 L5 Y7 g. l6 W, C% R& U4 V, F) h! A> The units should be small and compact with shielding, and able to mount
1 b8 E- B8 W- ?> to a printed circuit board with header connector.
6 |+ F4 U' z. J% |, n >
. J z$ d9 W' H0 M, g > At this time, we are interested in samples of a pair of modems that
, g3 d/ F+ m( P* c> might be similar to this proposed system. We do not expect that you
: A) o3 S$ M4 y8 z6 O6 P > provide all of these specifications at this time. I can describe our
, @% T) M( [6 a9 `> immediate application needs in the next email if this project is of
}7 E7 ^& B I* _1 P K. Q> interest to you. Perhaps you can make the samples by those
5 {+ J5 V& C7 k8 [ > specifications. This will allow us to test your radios before we move
% U9 n$ I# d F) C* c$ Y7 H> forward. We are interested in your 900MHz radio to start.
* i) `6 b) ~ P
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