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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

/ w6 t( X8 `' w Q) D+ [ ~; C9 V客户要求如下,如果哪家工厂可以做,请和我联系
' l! |1 W4 a5 F5 x7 L, [( \1 p > The application that we have in mind is similar to others that we commonly
, p. P% c- c3 a- G( K- o; Q> have. If we were to pay for FCC approval, we would want to use the modem
& U- W6 q" J, Z8 A > units in all similar applications under the same approval number.
3 I/ Y0 K k7 ~/ p6 s/ Q# y8 O* f6 u> Therefore, we would like to be able to configure the units to a specific
# E3 T1 @7 v+ _+ `1 l! H; `4 B0 G> application. For the business that we do, this approach will yield more
+ B2 q$ n% V; a3 k! I3 V. p Y> sales based on the same product and approval. We are interested in the
9 ~ {# S! I; T" v> following specifications:
& e1 D5 |6 Z+ n/ t>
$ {0 ]7 r, g6 X# i& s0 i ]$ A* l> - 2 inputs at the Transmitter with three possibilities;
8 Q* z9 F" H5 d" ]7 M, A6 ]) L> 2 analog
2 P" i' ?+ c7 l( ?3 q. F' o > 2 digital
. X8 l- N* l9 \0 ?- E2 c' G > 1 analog and 1 digital
# p5 R9 L' ?* \" ]2 x) H! z>
' P. Y) U, I% \3 o: P> - 2 outputs at the Receiver with three possibilities to match inputs
9 I6 m, i9 K1 q' ] >
' k# S3 o# J1 }% J# }) h6 U > - Ability to configure/define analog Transmitter input ranges through
0 x" R- _( T% y7 m3 {> simple programming method to correspond with full-range analog Receiver
. x) M w; D8 p* W4 C( ^% E> outputs (0 - full voltage).
. {/ Z: q6 H0 i( _, m" [ >
2 D$ i6 x! N& u& T1 y, j& n> - Ability to configure and set sample rates for the inputs.
1 U, h' M" y2 @1 g5 v+ t >
3 A* Y! B& I$ B1 P+ _> - Digital output on Transmitter that turns on during the sampling period.
# q. [$ V1 ~3 N5 ~3 U6 N. M4 u. D >
, q2 k- T6 B! g& `# t > - Ability to configure a power saving Sleep Mode in the Transmitter by
1 B/ H' h# Q4 S> both software control and input hardware control.
3 D8 x5 ]5 X. e( B- J3 `0 J>
) M6 H/ K& }/ h' U/ m2 h> In order to configure the units, we would need a way to make the
( q: r+ |, e* T# M> settings. This would preferably be from a computer terminal so that
6 U( ^/ z. _0 r$ E+ k> configurations can be saved or easily duplicated for production volumes.
/ |; l+ E" _8 z6 L; L, c> The units should be small and compact with shielding, and able to mount
; C0 c5 q6 Z5 _5 G, d > to a printed circuit board with header connector.
2 E% I8 O8 ?+ h >
+ C4 M/ J% ^2 w( L: D# Z1 {* r J > At this time, we are interested in samples of a pair of modems that
; v; S2 M) `0 [> might be similar to this proposed system. We do not expect that you
6 {8 U& _8 w8 s1 x> provide all of these specifications at this time. I can describe our
% z! s$ L: Z& ~+ [) ^5 G0 A> immediate application needs in the next email if this project is of
8 |6 O, P: V- a > interest to you. Perhaps you can make the samples by those
' |* D- s- x. E4 m+ B, r4 H > specifications. This will allow us to test your radios before we move
0 Q; h5 R8 m- |; q n( W > forward. We are interested in your 900MHz radio to start.
) B. A, v1 R- F Y7 H
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