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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

! }, n; _/ p3 ]/ q% M' f& G 客户要求如下,如果哪家工厂可以做,请和我联系
* K7 l4 ?0 H& w! H! k$ X > The application that we have in mind is similar to others that we commonly
6 y% C/ T% g& L > have. If we were to pay for FCC approval, we would want to use the modem
8 R; e; N8 o p4 S9 v0 ~' A N d% p8 D> units in all similar applications under the same approval number.
) ^: |' g* f: U0 p$ R0 h> Therefore, we would like to be able to configure the units to a specific
7 Q. v* S. C' i; |. s' B> application. For the business that we do, this approach will yield more
# h% @2 [/ b: A5 \/ j5 } > sales based on the same product and approval. We are interested in the
/ L0 q5 t; v5 O& W3 Z7 M- {6 \> following specifications:
8 o3 w: i; u' S( E >
# z" o+ }3 @ U1 G' E( c) |* j > - 2 inputs at the Transmitter with three possibilities;
2 q% O9 Y6 m& A4 V/ ` > 2 analog
; `, J1 B% u3 s+ I* ] A > 2 digital
) {) X) D/ V$ @ > 1 analog and 1 digital
4 Z3 R8 P( |* q>
, y* q7 j% o0 V0 ], R > - 2 outputs at the Receiver with three possibilities to match inputs
) s% I. }8 \; R1 V3 ^ >
0 s+ C; T- n# [1 A> - Ability to configure/define analog Transmitter input ranges through
4 U- f/ U; n3 u3 t) }7 ~4 J' T9 ?8 W' l > simple programming method to correspond with full-range analog Receiver
/ t6 h5 L; \, T2 R > outputs (0 - full voltage).
7 Y9 m; v' t' u5 r) Q% a>
& F6 P: k l% `> - Ability to configure and set sample rates for the inputs.
3 _7 [8 X! K; m! N>
; F3 m- I. \! t1 @$ u5 | > - Digital output on Transmitter that turns on during the sampling period.
* I0 w6 m/ a, x5 z" s# `; h' ^# ] >
- P1 x5 n2 w# |- I6 u> - Ability to configure a power saving Sleep Mode in the Transmitter by
6 g3 t2 ^2 K- E* C: V> both software control and input hardware control.
7 J: Q$ m5 C3 d4 O' K3 W0 { >
6 [' F( `3 L0 ?" m> In order to configure the units, we would need a way to make the
% G2 K& d" H8 W: G! S > settings. This would preferably be from a computer terminal so that
" O0 R9 D- |0 P> configurations can be saved or easily duplicated for production volumes.
+ Q I7 F1 V4 Q; a% ?> The units should be small and compact with shielding, and able to mount
! ~" s& l) p# x > to a printed circuit board with header connector.
/ ^ |; W4 _; x9 v1 ? >
' B+ K0 s+ c+ u+ U' B* U1 d& R- M) ~> At this time, we are interested in samples of a pair of modems that
% V/ B/ [4 X! j; J) X* _ t) T> might be similar to this proposed system. We do not expect that you
4 }5 \, G) R; W/ w> provide all of these specifications at this time. I can describe our
/ r0 I/ y- D" e) |2 d > immediate application needs in the next email if this project is of
* ]0 Y6 Y+ {; n$ Y& i4 t/ U/ M > interest to you. Perhaps you can make the samples by those
4 z8 e3 t4 V* p> specifications. This will allow us to test your radios before we move
3 c. u2 i8 F* z0 o8 ^% w5 l3 H9 n) f > forward. We are interested in your 900MHz radio to start.
% Y( c% b9 J1 R0 c
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