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# }, y- _+ z. ~客户要求如下,如果哪家工厂可以做,请和我联系
9 p# s$ a# C7 X9 F> The application that we have in mind is similar to others that we commonly
9 O! |5 K8 v5 K! a) J> have. If we were to pay for FCC approval, we would want to use the modem 5 {6 M a ^: z8 e
> units in all similar applications under the same approval number.
$ ~# A9 {/ c) Z% U* s> Therefore, we would like to be able to configure the units to a specific ' K" m' f/ b2 k% ~
> application. For the business that we do, this approach will yield more 4 F1 `3 U/ \8 [
> sales based on the same product and approval. We are interested in the + u. W6 Q1 c6 b- A0 U
> following specifications: ! V) Z+ t0 r& m, L6 N
>
& h) G. m7 Z* r$ \> - 2 inputs at the Transmitter with three possibilities; 9 r5 @6 m2 P0 P' D0 b' r& ^
> 2 analog
! t2 ]/ v0 N3 @6 X+ W# L6 y> 2 digital $ i3 F$ { r. n
> 1 analog and 1 digital , v. P6 G s; l5 o2 `7 V4 g
> 8 r8 |- C) C* A/ s& D# W
> - 2 outputs at the Receiver with three possibilities to match inputs % C/ l( B# w8 S0 k4 |( g. }7 k
> * T' L; e' e1 _/ D8 v
> - Ability to configure/define analog Transmitter input ranges through
+ e% v$ p0 B. J+ L6 x/ ]) ?> simple programming method to correspond with full-range analog Receiver
, y) k# c* R* M B0 y Z% n( D/ A \- r> outputs (0 - full voltage).
& o* p8 I' X' }* e/ ]* O$ i>
* ~" P! U$ f! K> - Ability to configure and set sample rates for the inputs.
8 K- C) ^4 Q' C. O>
; k8 h! m! b# W% h* W, ^3 G& q> - Digital output on Transmitter that turns on during the sampling period. , S, b; K& ~/ h! v; i6 S: W9 e' [
>
! T: v# o9 U3 q2 N4 A' P( q> - Ability to configure a power saving Sleep Mode in the Transmitter by * n) Q3 S+ D! {! P! }1 ` c! ~9 z
> both software control and input hardware control.
0 p$ \8 A& o3 o. [>
5 v3 \/ w( V k( W2 g4 T) E, i9 B> In order to configure the units, we would need a way to make the
; z. X: z3 B7 |/ ^> settings. This would preferably be from a computer terminal so that
5 C. a6 d# h1 B; G7 a% k> configurations can be saved or easily duplicated for production volumes. / ^$ b, a: W$ _* e! |
> The units should be small and compact with shielding, and able to mount
( x- z A$ `$ m, i& D: e3 I> to a printed circuit board with header connector. + O! h. s) C @$ I: ~
>
' _7 x& `* M% W" c3 V! d> At this time, we are interested in samples of a pair of modems that & `! l0 O* {% ]4 F
> might be similar to this proposed system. We do not expect that you , b' a" M/ E4 D4 I, R* q
> provide all of these specifications at this time. I can describe our
! t V. n$ n5 T! |- _> immediate application needs in the next email if this project is of $ n) v. f0 `( |- M, ]4 G+ ]3 O
> interest to you. Perhaps you can make the samples by those
X% I5 F" }" @$ r& N. v> specifications. This will allow us to test your radios before we move
6 O7 R# G# k: g& G$ b6 e/ m> forward. We are interested in your 900MHz radio to start. - O/ h: u' I6 ~8 ]% {! l* x5 }
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