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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

6 X" B/ L5 A8 o( A( ~1 x! m 客户要求如下,如果哪家工厂可以做,请和我联系
( h% ]6 H& l( M9 T: V; M, s > The application that we have in mind is similar to others that we commonly
. {+ ~# V# h5 O' o8 `> have. If we were to pay for FCC approval, we would want to use the modem
- N1 c$ q7 f; e2 |+ y> units in all similar applications under the same approval number.
% G5 t- Z4 d- Z8 G0 \ > Therefore, we would like to be able to configure the units to a specific
# X0 }: Q& o, p" M6 I$ b9 N > application. For the business that we do, this approach will yield more
) E- M6 @, ?# K/ B$ c( d/ f0 w8 k> sales based on the same product and approval. We are interested in the
* z3 s. A0 i7 ?3 V > following specifications:
5 r6 n- G* h9 o+ ^ l0 R >
) _" `# }8 A& R0 c2 x& b6 m# L > - 2 inputs at the Transmitter with three possibilities;
! ~2 U& h0 o4 D* ~8 n > 2 analog
/ T& H- c* G8 K' D3 J% B/ T > 2 digital
7 U9 T" c: R6 ?3 |0 \" J* ] > 1 analog and 1 digital
6 g" `4 L$ ^8 S2 l>
3 L- K+ E1 k0 E3 L> - 2 outputs at the Receiver with three possibilities to match inputs
# r+ R6 v) {; Y1 o) Q5 B- {! o>
' ^: V: n8 D& ^" N> - Ability to configure/define analog Transmitter input ranges through
: \( `$ x) P7 {4 |& X> simple programming method to correspond with full-range analog Receiver
% A0 S* l1 u* ^# ~ S9 b' J> outputs (0 - full voltage).
" @7 s$ x. M8 j) b# ~7 \ >
% f8 M. X4 b( v4 Y. i7 u > - Ability to configure and set sample rates for the inputs.
' f3 c3 r/ e2 _0 A! ]$ G>
5 |9 {0 {+ F3 ` k. j, ]/ R& h C> - Digital output on Transmitter that turns on during the sampling period.
7 E1 Q) T3 E3 o6 R' j P3 z>
- ?2 G; Z8 o$ K+ Q' p7 B8 y$ f> - Ability to configure a power saving Sleep Mode in the Transmitter by
! {. A0 a: ]6 m+ V* v+ J > both software control and input hardware control.
* H, f/ H% x' D>
. f: X q6 K, z( x5 g> In order to configure the units, we would need a way to make the
5 Y4 U5 e) b) s5 ?: }& x > settings. This would preferably be from a computer terminal so that
S4 I* ?1 H, z( e9 l5 X( q> configurations can be saved or easily duplicated for production volumes.
9 w5 u3 c- V- `/ Z > The units should be small and compact with shielding, and able to mount
$ [$ O, z& k8 S6 b> to a printed circuit board with header connector.
" y; j. G0 q6 U" H) ]7 r1 e8 F>
8 a7 v1 g( u! e0 x5 d: |> At this time, we are interested in samples of a pair of modems that
: [' P* t# a/ F> might be similar to this proposed system. We do not expect that you
# p; h \' y# g) n2 q> provide all of these specifications at this time. I can describe our
7 d, A8 U: b% |. u> immediate application needs in the next email if this project is of
0 i6 {1 w/ x' z. q' e/ T > interest to you. Perhaps you can make the samples by those
/ \! a1 |# E" O> specifications. This will allow us to test your radios before we move
3 \1 t1 b, U: Q* Y% b2 {! W( k > forward. We are interested in your 900MHz radio to start.
; M% M, y3 F/ K+ p9 n5 R$ k2 ?
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