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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

: K: H) J4 [) F( I% S1 S客户要求如下,如果哪家工厂可以做,请和我联系
8 Q" X( C2 m$ Q) E2 T > The application that we have in mind is similar to others that we commonly
8 G5 [; l% X, r \' e > have. If we were to pay for FCC approval, we would want to use the modem
# U9 Z* M+ k% S3 t4 Q > units in all similar applications under the same approval number.
; T% f5 s1 ` H- `) L- \/ V* b> Therefore, we would like to be able to configure the units to a specific
4 b& q/ Z# J+ l7 ] > application. For the business that we do, this approach will yield more
! w% ~' R. N5 w s0 F> sales based on the same product and approval. We are interested in the
. o7 _5 i, w* q > following specifications:
1 \, |. F, F# B$ i8 v9 w>
* Y3 k+ l p6 v > - 2 inputs at the Transmitter with three possibilities;
' B% Q: {1 ?1 l, L8 E: D! |> 2 analog
3 Z& r0 @) ~; Z& w; a$ i+ W> 2 digital
4 W; P7 a2 F$ e( \3 B9 u- S/ y. `; v> 1 analog and 1 digital
. n! s* r9 b) c( m' r ?* Q7 b3 y >
- S5 C7 l" v0 ]) x3 x$ M- l% ` > - 2 outputs at the Receiver with three possibilities to match inputs
+ K7 D- |' t9 O5 L >
' [4 b9 |& w6 r2 O# V& z0 ^ > - Ability to configure/define analog Transmitter input ranges through
; G7 c: u# m4 t> simple programming method to correspond with full-range analog Receiver
6 F0 E( K# {0 ?/ d/ o$ F > outputs (0 - full voltage).
% N' j9 a+ e% O2 n) p. Y7 ~>
; `, w4 q% E- J+ e > - Ability to configure and set sample rates for the inputs.
' L: L( n* t' n: w>
3 z: ?7 X% l, R) M; b) t2 W' Y0 I6 X > - Digital output on Transmitter that turns on during the sampling period.
! ]0 u3 x7 e7 H* C1 e, n" B! g1 |>
# A3 N; Z4 v& M > - Ability to configure a power saving Sleep Mode in the Transmitter by
7 `. N6 a, ~7 h) O6 v) P> both software control and input hardware control.
3 G. F2 q0 o7 O2 Y& [4 s+ ~>
+ o9 z+ U" J- l, [. g' f > In order to configure the units, we would need a way to make the
) I- A: E5 J' |! K. |9 b6 O> settings. This would preferably be from a computer terminal so that
# [( T4 J$ e& v& B, @: X# M > configurations can be saved or easily duplicated for production volumes.
( j: m- L$ U- R1 Y3 n% [7 m, w, Q0 y> The units should be small and compact with shielding, and able to mount
7 D2 ]4 B2 E$ I* y. Q* T+ p> to a printed circuit board with header connector.
- G- b) l# Z& k) p' I% K >
@3 k* Y- O0 R) c( [) T> At this time, we are interested in samples of a pair of modems that
3 O4 |6 L ~* w4 H# S6 s5 q > might be similar to this proposed system. We do not expect that you
$ \: z- w7 g5 c- H3 i6 \; O > provide all of these specifications at this time. I can describe our
' w" m8 [" D3 P/ v F7 Y$ Y> immediate application needs in the next email if this project is of
/ D) v5 R9 I0 n& L0 ^, x4 g> interest to you. Perhaps you can make the samples by those
, C& S) B' c: n# t% P" k0 ~! K; d > specifications. This will allow us to test your radios before we move
( T& M$ z, p/ `0 _/ L7 o> forward. We are interested in your 900MHz radio to start.
1 c1 S" O7 B- S/ A1 Q8 n% {
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