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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

U, w5 `7 y7 `1 L' F客户要求如下,如果哪家工厂可以做,请和我联系
9 |7 F: G" h2 T G > The application that we have in mind is similar to others that we commonly
6 D' O2 p: k+ s> have. If we were to pay for FCC approval, we would want to use the modem
# i# P2 c) [+ _! l> units in all similar applications under the same approval number.
! O) x& D, F- P# U( ? > Therefore, we would like to be able to configure the units to a specific
) ]: U! f( o1 _& M1 r8 C > application. For the business that we do, this approach will yield more
: F1 q/ r9 P. |+ ? > sales based on the same product and approval. We are interested in the
3 W5 @5 H7 J$ a9 H> following specifications:
3 q n' w6 v4 Q. A. N; D >
5 q; R6 `- ^/ `, j5 q> - 2 inputs at the Transmitter with three possibilities;
6 b |+ f4 K c/ x) d7 g > 2 analog
) R: E4 r1 s% x" w; y4 W > 2 digital
& d) Q4 n% M% u8 L2 B8 U- x > 1 analog and 1 digital
0 c% U) S8 k8 M; d >
( Z, i- f5 n& E4 W' z3 r> - 2 outputs at the Receiver with three possibilities to match inputs
' l0 U. A$ a! e >
$ V0 {6 v/ S' }' R" J> - Ability to configure/define analog Transmitter input ranges through
" U6 Y s. f% `9 _ E> simple programming method to correspond with full-range analog Receiver
) C0 W. P; R6 S3 u$ f, J, t > outputs (0 - full voltage).
. O& w. V! K4 X" _>
. K( C" ^) N, ^> - Ability to configure and set sample rates for the inputs.
0 `# c/ {* c! p) W }6 E- b. y$ \>
& c0 }3 ^' P/ T, S > - Digital output on Transmitter that turns on during the sampling period.
" I% i2 ^. {& _7 I5 G' ^" w3 R7 I >
. |; e) x3 Z$ @ > - Ability to configure a power saving Sleep Mode in the Transmitter by
# _$ U1 `6 ?! d> both software control and input hardware control.
1 Z5 o" A' _* J* J/ g) L0 l6 X>
9 F! a$ n1 W1 m* X> In order to configure the units, we would need a way to make the
2 z/ H F' e# |+ A) T > settings. This would preferably be from a computer terminal so that
$ l0 f, ?' |, E2 n( B > configurations can be saved or easily duplicated for production volumes.
- h' r$ F' V4 D1 q. T7 b# g> The units should be small and compact with shielding, and able to mount
, Y- u+ K0 [$ b> to a printed circuit board with header connector.
; k- A& Y1 C4 V+ p6 d>
( ?1 k$ V: D" @( H7 A1 e > At this time, we are interested in samples of a pair of modems that
" N) y5 Z) I+ ~5 C8 L> might be similar to this proposed system. We do not expect that you
& _% h4 H( t- J > provide all of these specifications at this time. I can describe our
9 d+ u: Z0 p- b> immediate application needs in the next email if this project is of
( p1 ^/ P3 ~; L; `/ ?> interest to you. Perhaps you can make the samples by those
7 U: a: t2 G1 o9 P, G9 G > specifications. This will allow us to test your radios before we move
9 X" a8 Q+ S- B w9 j$ N> forward. We are interested in your 900MHz radio to start.
" d2 P6 {" W$ {
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