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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

% S* } K/ I# P e4 F- i- E H 客户要求如下,如果哪家工厂可以做,请和我联系
* C* a1 V' U% @> The application that we have in mind is similar to others that we commonly
. ~- w8 Y1 \$ W4 I! @! a& V > have. If we were to pay for FCC approval, we would want to use the modem
0 `) N" t* x6 ]- h0 Z# |- a3 k4 X3 D > units in all similar applications under the same approval number.
7 m' p2 ~7 C, \+ J > Therefore, we would like to be able to configure the units to a specific
6 `; P: f4 m! M > application. For the business that we do, this approach will yield more
2 K* A! k8 i. K; E) j > sales based on the same product and approval. We are interested in the
- q p7 L$ S* @0 R9 t > following specifications:
# N9 P) E3 t* o! Z2 [' H >
6 }& L0 b! y0 d> - 2 inputs at the Transmitter with three possibilities;
7 B- R/ L; {4 V7 K; t# q6 N( { > 2 analog
; o* g. P9 q7 \9 A! I8 j> 2 digital
- h% v2 w* ~9 Q; n7 X > 1 analog and 1 digital
4 i, Y" M" F/ g) O0 Y2 V" m>
$ P- c% F2 U, W: X- w > - 2 outputs at the Receiver with three possibilities to match inputs
2 b8 J% Q; \6 g7 [+ n >
5 a# P c7 X% o6 ~8 s1 } M- D+ D> - Ability to configure/define analog Transmitter input ranges through
0 i9 I/ s! L1 v# ]4 d9 `5 P > simple programming method to correspond with full-range analog Receiver
9 q+ S' z( x' k( ?& \! Y6 U- c+ L> outputs (0 - full voltage).
/ M4 L7 y9 e' W* C b>
, K* R$ v0 t) I* k4 c/ j) v$ b> - Ability to configure and set sample rates for the inputs.
/ K e5 [/ `: d+ u( c0 Y! q >
3 k- V6 ]# D6 b- u8 \5 M> - Digital output on Transmitter that turns on during the sampling period.
5 `; _8 d' _' u# O; G>
" o$ e, T( z& t( H% G6 u > - Ability to configure a power saving Sleep Mode in the Transmitter by
3 x" Z- W9 v4 u7 ]> both software control and input hardware control.
! v* r% h; i3 ~& t: K N0 I >
( y9 b/ f) \: G$ F1 P0 K& a> In order to configure the units, we would need a way to make the
! P* W9 F O' u6 p# P3 G% H > settings. This would preferably be from a computer terminal so that
& O# S3 A5 M1 g) r! R& b R > configurations can be saved or easily duplicated for production volumes.
/ W# q2 t: o; ]5 ^) F* `> The units should be small and compact with shielding, and able to mount
" L* I; o/ h1 B5 a> to a printed circuit board with header connector.
! r$ v2 G4 h: {# S" b1 Z Q >
1 k6 g, F0 F% K, A > At this time, we are interested in samples of a pair of modems that
4 G+ i1 w8 r; C* h) x" e > might be similar to this proposed system. We do not expect that you
+ f: k# M; M3 o0 G> provide all of these specifications at this time. I can describe our
+ l3 q, p5 P! M4 `" @, M > immediate application needs in the next email if this project is of
8 i& r9 U6 ?/ c+ ?7 ~9 c7 D% { A> interest to you. Perhaps you can make the samples by those
* C- S# |) b7 o6 Q& t6 h > specifications. This will allow us to test your radios before we move
0 z4 ?! h! ?0 _; |> forward. We are interested in your 900MHz radio to start.
( Y# V$ W% l; e! e8 u8 s
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