ZX-News #13 05 ноября 1996

Железо

Iron - The scheme of 'feature', which picks up and hangs up Vicomm'a.

                  Iron



          (C) Aleksandr Majorov



  So here's long-promised scheme 'feature', which picks up the 
phone Vicomm'a and, respectively, puts it. I want to note

it is only a beta version, and perhaps
in final form will look like
somewhat differently. The fact that someone
may have any suggestions on
account of how the gadgets more simplified
For example, to reduce the amount of detail ...


  However, even that which is already running,
and works quite well.


             Pribambas. v1.0.

             ================


                / R1.1

    o o / o o

   A * C1 1mkf V

   and i

   n _ | | _ __ + C2 c

   and | | 100mkf o

   I am 100 90V m

    o / \ m

                 / \ O o o

                 \ /

                  \ /



                   o


                         P1

                kt315

            3K / o +12

         ___ __ /
ON_LINE \

                    / Emitter



                    o

                      \ R2.1

                       \ ______ Ring

   +5 O_____ ____o


              5.1k


  Signal "ON_LINE" - control the line
("Tube" removed / put). Instead it is conveniently connected to 
the 5-th digit of the port # FE (1912 output m / s at 35 
Scorpion) 

 "Ring" - Ring Tone. In the initial state shorted to ground. 
There is a proposal connected on 5-th digit port # FE. 
(Actually, according to the scheme Scorpion is a signal DSR 
[Output 24B to control port], but in my opinion RS232 port is 
not so very often used.) 

 Relay P1 RES-15 passport RS4.591.004

          RES-10 paspotr RS4.524.312

          or similar.

 Relay R2 RES-32 passport RF4.500.341

          RES-22 passport RF4.500.129


  Diode bridge: any silicon diodes
reverse voltage of not less than 200V and the line
current of 300 mA, for example KD105B, D226V, KD205G
or diode assembly.


           To check the scheme:

           ------------------
 - Node tube


  This program puts the "tube, waits for any key," raises "
tube, and then waits for pressing any key:


          10 OUT 254,0: PAUSE 0

          1920 OUT 254,39: PAUSE0

          30 GO TO 10

Border color line status says:


           white - off-hook

          black - laid

 - Host Call


       10 BORDER 0

       20 LET A = IN 254

       30 IF A> 127 THEN LET A = A-128

       40 IF A> 63 THEN LET A = A-64

       50 IF A <32 THEN GO TO 20

       60 BORDER 7


  This program makes a black border and
waiting signal tone. If you notice it
border is white.


  If the relay P2 is not triggered until the end
the first alarm call, should be replaced
capacitor C1 to the other with a capacity of
1.5 - 2 times greater, or use the relay with
lower current operation.


        __________________________