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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 d+ l4 [* z5 h( J3 ]) I6 a 客户要求如下,如果哪家工厂可以做,请和我联系
; j" n* t% N1 m$ m- Y> The application that we have in mind is similar to others that we commonly
" P" L* R$ _4 `- D, D > have. If we were to pay for FCC approval, we would want to use the modem
8 y- j4 ~; W( a) V, N$ u> units in all similar applications under the same approval number.
: ~# h6 e/ D0 I! Z% Y2 d > Therefore, we would like to be able to configure the units to a specific
4 U) N! A Y4 E# r1 e6 ` > application. For the business that we do, this approach will yield more
1 L! U# J# U, }2 B; I9 i> sales based on the same product and approval. We are interested in the
# d8 \! a5 ^- Q* B+ a6 h> following specifications:
" m r: y* b# H- J n; G >
b2 e2 R# U% a0 C> - 2 inputs at the Transmitter with three possibilities;
5 P+ [- t+ u) C> 2 analog
) r4 z; `) X, ^1 l, A7 }3 | > 2 digital
* i, |+ C6 Q, ^" \: F > 1 analog and 1 digital
( |, @1 c) A; I >
- i* J# b" R" } > - 2 outputs at the Receiver with three possibilities to match inputs
. ^. L: M, k. j" Y K% N>
( ~( j0 ?8 g* | }+ b4 e+ y9 P( y > - Ability to configure/define analog Transmitter input ranges through
# b# C- `6 y6 p4 {5 E1 S > simple programming method to correspond with full-range analog Receiver
2 O% O5 w$ M6 A: ~4 Q* P > outputs (0 - full voltage).
- W, M& {+ j7 o1 T! J. U7 ] >
. a- {1 ~. o* l. k9 O# V- m. U5 m' h> - Ability to configure and set sample rates for the inputs.
4 V2 U3 b$ P& G2 c2 L) U0 ]3 @% W4 p; ?>
8 k: r1 t4 E; C7 @ > - Digital output on Transmitter that turns on during the sampling period.
" Y% j, }& v: X5 K8 W >
2 D: l3 j" l1 {& G" [# a> - Ability to configure a power saving Sleep Mode in the Transmitter by
3 ~$ ?/ a% n( \9 s; v > both software control and input hardware control.
5 f8 n i3 i0 Y+ x0 U, d. c! _: y>
6 J9 P6 [2 |8 [! P4 E > In order to configure the units, we would need a way to make the
0 V+ W& J% u1 M/ y; I: J" j. g! I> settings. This would preferably be from a computer terminal so that
/ T' e$ Q* C1 y$ Y > configurations can be saved or easily duplicated for production volumes.
- N; m8 m0 [+ I> The units should be small and compact with shielding, and able to mount
( Z$ ?7 o+ w" C1 v> to a printed circuit board with header connector.
- T( } v e' z0 N, I>
. l8 Z3 {5 c5 Q' b0 U/ t0 I > At this time, we are interested in samples of a pair of modems that
/ M: f6 g) S0 Z8 G0 S; o6 Z > might be similar to this proposed system. We do not expect that you
7 j9 T7 `2 N( C> provide all of these specifications at this time. I can describe our
* y: p6 @ r( t) \( l > immediate application needs in the next email if this project is of
: T/ _5 [+ t* Q& }! L8 _+ h! Z > interest to you. Perhaps you can make the samples by those
1 n, m& T3 Y% V& |! N) ^' o) E0 ^0 u" | > specifications. This will allow us to test your radios before we move
S2 G2 y# u- d, Q) d& W; k> forward. We are interested in your 900MHz radio to start.
8 L3 G0 z2 C! i2 S; ~+ @' s8 {) O
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