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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

9 p4 `. T% k; c5 y 客户要求如下,如果哪家工厂可以做,请和我联系
3 m3 W: i Q" I/ B" {* I0 L( s> The application that we have in mind is similar to others that we commonly
! f( K3 ~/ {( ~" h5 n. {9 r/ q# f> have. If we were to pay for FCC approval, we would want to use the modem
^8 \4 p) O! c) z: G" M" H> units in all similar applications under the same approval number.
) R0 _( v3 `6 S, Y( g8 r1 s> Therefore, we would like to be able to configure the units to a specific
4 d& e. ?0 l' }% l, J7 O3 R$ p > application. For the business that we do, this approach will yield more
8 d. D1 O/ k7 }4 H/ {/ e > sales based on the same product and approval. We are interested in the
4 f& \5 @1 _$ v2 T! ]0 U2 ? > following specifications:
; J& ~0 h5 F% p* d$ l$ P >
8 L6 }% S8 P- O3 R) N7 u7 N > - 2 inputs at the Transmitter with three possibilities;
4 `3 t0 v' s9 V! H1 s> 2 analog
6 b" Z4 s2 |% }8 j. ]8 y > 2 digital
9 x' Q1 C( o$ C4 C$ I> 1 analog and 1 digital
; m# _+ T; p1 W: w4 M' r F. g>
6 T) S- p$ t. x/ }' {( P> - 2 outputs at the Receiver with three possibilities to match inputs
; c! N8 v7 x4 h% m# J3 V6 n>
) u! U) M7 z9 Z' ^ > - Ability to configure/define analog Transmitter input ranges through
6 r9 H3 r2 y8 G! X1 h > simple programming method to correspond with full-range analog Receiver
/ s3 [; z7 a/ p8 X: P > outputs (0 - full voltage).
( }9 N0 k# Q1 L! W }3 G>
' W B( E; f3 k3 K G> - Ability to configure and set sample rates for the inputs.
" \& y# Y* B3 V>
4 Y2 E4 h4 V8 H' Z4 c# P# L > - Digital output on Transmitter that turns on during the sampling period.
$ z: O1 s0 g$ A >
b/ ?0 ~( L! r, l+ o3 ? f( d > - Ability to configure a power saving Sleep Mode in the Transmitter by
3 x+ N5 m0 O! @/ c, P> both software control and input hardware control.
8 K8 b) @2 v% B6 O6 m- u>
. h( H. E8 }4 W* J > In order to configure the units, we would need a way to make the
( v% e9 n4 z8 S7 v8 D+ b2 F > settings. This would preferably be from a computer terminal so that
8 N6 m( r& k7 }* E" g$ M) L% X( } > configurations can be saved or easily duplicated for production volumes.
9 Y( n- p0 L3 N' R* Y > The units should be small and compact with shielding, and able to mount
3 K; u. `1 F# x6 C9 ? > to a printed circuit board with header connector.
8 B+ F9 }6 h% F" p/ f >
# `$ U( A4 Q: T; r, z( H2 f> At this time, we are interested in samples of a pair of modems that
3 I/ I' f/ B7 q> might be similar to this proposed system. We do not expect that you
; ?' C4 J0 E- J/ v' |1 X! M> provide all of these specifications at this time. I can describe our
$ _! I3 U* K0 j> immediate application needs in the next email if this project is of
3 ~, n$ S, M5 e+ j4 z) A> interest to you. Perhaps you can make the samples by those
0 M; \" N; }1 f* K5 `> specifications. This will allow us to test your radios before we move
5 V( M- l. T6 ]) \0 r > forward. We are interested in your 900MHz radio to start.
4 o0 j: n4 R9 t) ~: a7 b: f8 L p. T
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