|
|
( t/ j! n* v- [
客户要求如下,如果哪家工厂可以做,请和我联系
: @' t. m: S/ g% p. g9 B" p0 K- r> The application that we have in mind is similar to others that we commonly
- D6 ] `; B/ E> have. If we were to pay for FCC approval, we would want to use the modem
& o4 Y2 ]3 K# u8 b& L7 o+ p> units in all similar applications under the same approval number. % {& G" A1 ?& F
> Therefore, we would like to be able to configure the units to a specific
! T: }% M2 v$ x: V> application. For the business that we do, this approach will yield more
" n5 _4 u0 o) T- D6 L$ `6 }/ u% @> sales based on the same product and approval. We are interested in the
8 E% I0 a5 r G3 Y. Q/ X6 T) ~> following specifications:
3 E/ s |5 Z: ]>
: Y& C8 A# l* c> - 2 inputs at the Transmitter with three possibilities; & J; A: w E3 ^
> 2 analog $ i" w% x* W8 M, b* Y0 Z. K
> 2 digital & i) x, ?$ N3 \) f
> 1 analog and 1 digital
5 H q8 O, }9 B* R3 M& c> 5 ^8 [5 T4 N% B0 C" N
> - 2 outputs at the Receiver with three possibilities to match inputs
# ]- o2 H2 W3 k2 }>
4 T7 b: o, V5 O# T9 P8 s> - Ability to configure/define analog Transmitter input ranges through * l& u$ N6 A! a2 I
> simple programming method to correspond with full-range analog Receiver
$ s( _, h! }; R& Q1 H* t; x4 s. {> outputs (0 - full voltage). 9 l! Q* J7 C1 n4 d, Z
>
* |6 D9 Y# D( S1 w# R> - Ability to configure and set sample rates for the inputs.
5 N6 _! O. C( [0 O+ R4 {: }" E$ \>
, ^5 Y, `6 |/ M, t> - Digital output on Transmitter that turns on during the sampling period. " e( u" q+ J- M' |$ R
> ) j! a- E" y) M' x, A
> - Ability to configure a power saving Sleep Mode in the Transmitter by 9 W- C y2 {" S5 X
> both software control and input hardware control.
. H8 J+ o5 f& i4 n( ^0 H8 Z> 8 r0 o6 I2 |/ Z* W6 J6 `* d! V
> In order to configure the units, we would need a way to make the ) N* ^9 ]: ~1 z! V# ~' x+ b0 \
> settings. This would preferably be from a computer terminal so that + \5 F( l. G y) Z9 [( Z4 }
> configurations can be saved or easily duplicated for production volumes. 3 I( x/ b( \0 S
> The units should be small and compact with shielding, and able to mount 4 |6 b0 X. R& d
> to a printed circuit board with header connector.
/ o% b5 X: u: M" n- A> . ]; w: L A8 q$ E$ q/ S3 M3 C' a
> At this time, we are interested in samples of a pair of modems that
8 K+ f9 A1 S/ W/ m3 `7 ^5 K9 f> might be similar to this proposed system. We do not expect that you
5 T5 t( X! Y* ~8 W; d> provide all of these specifications at this time. I can describe our # f' T* E- Q' V% B a' _/ \3 W
> immediate application needs in the next email if this project is of 5 Z: J" [: s, V& M! q
> interest to you. Perhaps you can make the samples by those 9 N: K! h% J/ r& { w7 u) V
> specifications. This will allow us to test your radios before we move : ]" s) ?/ B( S5 a1 x. H% |2 A
> forward. We are interested in your 900MHz radio to start. , D" O; `0 p( E. [1 W
|
|