|
|
: E! w z1 n5 S+ ]# N
客户要求如下,如果哪家工厂可以做,请和我联系 ! ], I6 p& U8 q% ~2 W
> The application that we have in mind is similar to others that we commonly 2 @. Q+ b' o0 l, I
> have. If we were to pay for FCC approval, we would want to use the modem 2 ?: {0 U$ e. G: {6 |! U, A% g
> units in all similar applications under the same approval number.
+ g( Q; h0 g9 P/ B0 d> Therefore, we would like to be able to configure the units to a specific 7 t' q' L5 M# d. B1 z
> application. For the business that we do, this approach will yield more ; y) G& |9 d9 P' ^' ` S
> sales based on the same product and approval. We are interested in the
9 f. _& m8 Y4 x: r( y3 a> following specifications: 1 @" }# ]2 S$ P; z; o& a
>
7 t' ?/ h: k! F& W, Y> - 2 inputs at the Transmitter with three possibilities;
# V& L6 B* ^' R% r9 M> 2 analog
/ A) @- @7 ]' O+ l" E3 h> 2 digital
+ Y8 |9 n6 G% t2 n- [9 i- W> 1 analog and 1 digital
8 o5 S* M; T3 G* K> ( p' q0 H5 v& A3 C) f7 K! [& C% z6 D
> - 2 outputs at the Receiver with three possibilities to match inputs
) K' b0 c( T @& c>
+ C$ e' W. q8 }' ^! v+ \> - Ability to configure/define analog Transmitter input ranges through $ u( T: @, I% o8 k8 h( v' }
> simple programming method to correspond with full-range analog Receiver 7 V' s* d/ `; ~8 O# e! T8 J) J! p
> outputs (0 - full voltage).
, w+ M; u, f$ a! h% O) V5 i> ; z+ i( |# C- Y
> - Ability to configure and set sample rates for the inputs.
# t* T- s& T3 i( w>
b7 |* X1 ^) f) Y* c+ f! h' H% c4 F' I* u> - Digital output on Transmitter that turns on during the sampling period. $ H' V4 M5 q0 g1 k& N" s0 E7 A' i# S
>
: i. I" \6 F7 b4 J> - Ability to configure a power saving Sleep Mode in the Transmitter by
- E8 B& a# W9 O) a> both software control and input hardware control. - K6 ^) G" {/ q, X( \% l
> 6 E/ t' L# i& |
> In order to configure the units, we would need a way to make the 1 d$ r. x* w5 X( G* L4 U
> settings. This would preferably be from a computer terminal so that 4 V1 R& ?4 l& E+ h5 ^. E) T
> configurations can be saved or easily duplicated for production volumes.
& `. H) Y5 I: Q. j> The units should be small and compact with shielding, and able to mount ; O2 @( A1 s% q9 ^
> to a printed circuit board with header connector.
. S$ e) a4 \7 M" |, e @9 J> 9 W# N. O6 \" n% D5 V" N+ _
> At this time, we are interested in samples of a pair of modems that
7 R- H% E, I% T/ J4 q> might be similar to this proposed system. We do not expect that you - \$ O1 |8 X. V- [7 y2 H3 @3 k
> provide all of these specifications at this time. I can describe our
$ e* A8 T; C/ `9 E9 d+ p8 ~> immediate application needs in the next email if this project is of
& M7 {( X5 X& `* h9 Q n> interest to you. Perhaps you can make the samples by those
- c: `9 Q2 A( X0 n0 Z. R" }6 f> specifications. This will allow us to test your radios before we move * P* |: S7 z. p6 B! I! @8 h7 K
> forward. We are interested in your 900MHz radio to start.
$ M' M `% |: e* ~( B& h# Y9 s |
|