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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

: {% t9 ?. [( Q5 t+ m/ q, E" [客户要求如下,如果哪家工厂可以做,请和我联系
) z2 S: h$ W! Z! H% n) E > The application that we have in mind is similar to others that we commonly
6 s1 X/ n. w- m( O > have. If we were to pay for FCC approval, we would want to use the modem
; V0 O& J1 U* i5 d( X > units in all similar applications under the same approval number.
A* |5 W" ]5 ]7 b, I4 M1 z > Therefore, we would like to be able to configure the units to a specific
! {( h5 o7 J6 ~> application. For the business that we do, this approach will yield more
0 \( m: [* k" X- G% |9 q; |0 b > sales based on the same product and approval. We are interested in the
" x9 p; t5 ^- v7 `: a' `! k S> following specifications:
! e$ v) K; s/ q x) K >
* J7 }/ s3 T! T4 F8 n> - 2 inputs at the Transmitter with three possibilities;
& ?5 r& @$ j! o0 ]& M1 ? > 2 analog
2 b& H- _' Y- D! K& X5 t1 J( P0 r> 2 digital
2 W8 V O0 X- E3 Y > 1 analog and 1 digital
6 K0 a5 |" v" w( _9 W0 D>
) _7 Z- y3 R# [* z( h" ?5 P > - 2 outputs at the Receiver with three possibilities to match inputs
& H: `7 C# _- [ ~" c2 J3 v8 z>
+ f, r) ~, V& j1 k1 j& E8 } > - Ability to configure/define analog Transmitter input ranges through
- Z$ n3 `2 R6 |- H; r' o, F> simple programming method to correspond with full-range analog Receiver
* E6 e( ]6 H$ }! X- Y, x6 a> outputs (0 - full voltage).
4 t2 b1 ?& B' d6 m, \ j5 N >
; @1 K) g8 k, G7 J. a> - Ability to configure and set sample rates for the inputs.
) }3 Y$ Y1 L" n+ H>
7 M6 e4 Z, _4 W; v& H> - Digital output on Transmitter that turns on during the sampling period.
1 ]! j( |8 S$ d >
( i" I- l* K9 e9 ? > - Ability to configure a power saving Sleep Mode in the Transmitter by
& w0 j, E9 F, V> both software control and input hardware control.
' A# f1 j! C/ i. K/ \. e- J >
& }0 p6 l# R% Z- {8 w L5 W* `> In order to configure the units, we would need a way to make the
" q2 c% w% |5 `> settings. This would preferably be from a computer terminal so that
! D8 j: t/ p4 ^% l > configurations can be saved or easily duplicated for production volumes.
6 O- G1 l V2 f0 C7 q; S0 w' } > The units should be small and compact with shielding, and able to mount
! R% H2 _; I) D" w; v> to a printed circuit board with header connector.
0 C( i4 w0 i. I9 j>
8 K0 ]" `) m' B. G0 O- o8 h: f > At this time, we are interested in samples of a pair of modems that
! `* [/ q( L& w& D# ~' k > might be similar to this proposed system. We do not expect that you
X Z, ~2 t6 z3 P > provide all of these specifications at this time. I can describe our
6 v; i; }" x. |6 Q) T+ _+ ~> immediate application needs in the next email if this project is of
0 @. _' w- e; d9 f> interest to you. Perhaps you can make the samples by those
& y: S9 ~0 m6 C6 T. d% i2 _% X > specifications. This will allow us to test your radios before we move
# r9 T9 s/ p" J! {, E* C > forward. We are interested in your 900MHz radio to start.
r. {: l) w4 E3 k( B) ?
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