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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

$ m. |% s1 B% s! {7 t' h客户要求如下,如果哪家工厂可以做,请和我联系
! B0 m/ P) g. k, j# B: x> The application that we have in mind is similar to others that we commonly
& A7 f3 O3 W5 n; `. S5 C, a > have. If we were to pay for FCC approval, we would want to use the modem
6 B* d9 s* F; c# k > units in all similar applications under the same approval number.
, } e0 q8 c4 U8 e7 P > Therefore, we would like to be able to configure the units to a specific
( p% W6 ~+ ^0 D5 I > application. For the business that we do, this approach will yield more
2 z% u* i6 d( Y. C> sales based on the same product and approval. We are interested in the
. g9 `' Z& X$ Z+ x! s8 D2 z G > following specifications:
) t+ u! `2 P: f; l6 }5 c$ F# D& X >
w6 w' m# K4 `1 t) W# Y, e > - 2 inputs at the Transmitter with three possibilities;
3 j. G# E1 F$ w) J& s2 ^ > 2 analog
9 E X) G2 v& t* r9 {- ~ > 2 digital
6 h5 j; W) v& S8 j W: H R> 1 analog and 1 digital
9 O8 S" N( ]% c) z. V! q>
6 X" c# G5 v( c5 e' d) t4 ~$ C> - 2 outputs at the Receiver with three possibilities to match inputs
" K8 _1 ~, J7 ?) Y' m( F, Z >
: t: a( S% B# s( L: Y$ `+ p g> - Ability to configure/define analog Transmitter input ranges through
- V) V6 B- \9 f; }0 e( a* r; U > simple programming method to correspond with full-range analog Receiver
" \: Z7 d- T: W3 e) j: P2 A1 M > outputs (0 - full voltage).
* M% i6 R% z& W7 }8 O' r >
7 u1 N% X9 X! l3 ^# j> - Ability to configure and set sample rates for the inputs.
. y q% Y- A" P. N) _>
: H0 b" g+ b) B6 Y$ w/ T8 ^. B2 V> - Digital output on Transmitter that turns on during the sampling period.
4 z" u2 h p( y9 {# U>
0 N( f) Z \4 `' d* ]5 @> - Ability to configure a power saving Sleep Mode in the Transmitter by
/ L( {$ n/ r2 c/ ~; R7 H: X+ y > both software control and input hardware control.
, ^ F" Y0 u, N% N>
# F! @4 P$ g. j; ]. A4 N> In order to configure the units, we would need a way to make the
' ]1 m% ~" m, z/ ~7 V8 ? > settings. This would preferably be from a computer terminal so that
; P7 I2 |8 S- i2 f > configurations can be saved or easily duplicated for production volumes.
% d/ ]2 l3 E4 ?# F! H/ {* Y: p > The units should be small and compact with shielding, and able to mount
" N( ], z& ]: s6 {. `> to a printed circuit board with header connector.
1 C9 k% B( @+ u >
1 }( ~& r) e2 Z, T$ G; { > At this time, we are interested in samples of a pair of modems that
7 [) k6 P, Y( p > might be similar to this proposed system. We do not expect that you
`, M+ N' ~, { > provide all of these specifications at this time. I can describe our
& ` u/ O5 K) e! W, G% F > immediate application needs in the next email if this project is of
- L1 w6 m5 o: v9 u+ a > interest to you. Perhaps you can make the samples by those
) I4 v* M" j! q+ O& O% t4 D> specifications. This will allow us to test your radios before we move
) P' C2 H# g4 p/ n > forward. We are interested in your 900MHz radio to start.
" r% I+ A0 @0 F1 }# k: R
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