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; e* w: M% O v客户要求如下,如果哪家工厂可以做,请和我联系 8 r# h7 i5 A& k* y* T% O
> The application that we have in mind is similar to others that we commonly z% f x( Y) S. V. I* j; {
> have. If we were to pay for FCC approval, we would want to use the modem , U; C2 S1 D; P& K; q
> units in all similar applications under the same approval number.
. \4 ] H& M" g+ T) i> Therefore, we would like to be able to configure the units to a specific ! m9 ] d5 s& [' F
> application. For the business that we do, this approach will yield more
* f1 Q/ D, c- ^3 F. |9 _> sales based on the same product and approval. We are interested in the 6 @, T/ D* r$ z3 W- q c+ h
> following specifications: 2 x/ |( Y) Y( @/ _
>
2 G4 Z2 P8 F# y( G1 q> - 2 inputs at the Transmitter with three possibilities; 9 a- U. C8 B, E* u$ m A8 ?
> 2 analog
" [& \ v8 `8 |. s$ J7 q$ k> 2 digital 0 u s' M2 f& Z# u5 r
> 1 analog and 1 digital - _! y5 s5 t. c- q
>
$ a) L/ K7 M* P) E( C3 \> - 2 outputs at the Receiver with three possibilities to match inputs
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" Y. x7 \8 q8 i2 A _1 Z' N> - Ability to configure/define analog Transmitter input ranges through
5 L5 _, V: }: Q3 w* o& O& R% y6 z> simple programming method to correspond with full-range analog Receiver
. X, K. V6 @$ Y& G> outputs (0 - full voltage).
* ~3 E* \1 [( D! l8 m: z>
" b9 N6 W' w3 X I> - Ability to configure and set sample rates for the inputs. ; D7 n9 `! { n" {+ Q2 x
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> - Digital output on Transmitter that turns on during the sampling period.
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> - Ability to configure a power saving Sleep Mode in the Transmitter by ! N5 g8 `) H+ _8 _
> both software control and input hardware control.
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# V6 j2 T4 N j8 a1 ^. U2 _0 E> In order to configure the units, we would need a way to make the . c& J, f9 T' B/ _' E8 a- |
> settings. This would preferably be from a computer terminal so that
7 Z5 `6 q( {1 e3 N> configurations can be saved or easily duplicated for production volumes.
* i# ]7 | C5 v- Q" Z+ U> The units should be small and compact with shielding, and able to mount
$ a; i, T: d/ x> to a printed circuit board with header connector. & S# H D9 b, q) j# B# Y! @2 T
>
( ?- @+ x6 o" Y J> At this time, we are interested in samples of a pair of modems that 5 a2 g* O; ^" a! {5 A: z
> might be similar to this proposed system. We do not expect that you
* h+ Y1 c' ] U> provide all of these specifications at this time. I can describe our
$ i3 x y2 p0 ~/ Y# h> immediate application needs in the next email if this project is of
6 r* G) M, Q3 W: j; \> interest to you. Perhaps you can make the samples by those + v/ K* `) {. \& y7 h
> specifications. This will allow us to test your radios before we move # ?, l* s/ ~, {5 Y
> forward. We are interested in your 900MHz radio to start. % O/ U- r% \. T% ?- }; J6 f0 @
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