Iron - In this issue of Proton I will tell you about a new, mind-blowing device for telephony.

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║ Iron.              ║
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(C) Klim Gromov
ZXNet SysOp
ZXNet: 500:095/366
 
 A huge hello to everyone. Klim is back on air. :-) In this issue
Proton, I’ll tell you about a new, knock-down mikrukha for
telephony  Generally speaking, by the end of this year, after reading our newspaper
any more or less average iron ore worker can assemble one of these
phone that everyone will envy him because of the abundance in his phone
all sorts of bells and whistles.
    So today in the room... / hold on tight to the chair or
armchair/
  PULSE DIALER WITH ADDITIONAL FUNCTIONS FON-M
/ITSS2C01 without analogue/
 
 FEATURES
1. Auto-dial
2.Internal RAM for 10 numbers of 18 decimal digits or 20
numbers of 8-9 digits
3. Sending number pulses to the telephone line with a frequency of 10 Hz
or 20 Hz
4.Selecting the duration of the interdigital pause and pulse frequency
code parcel
5. Information output to LCD controller
 
CASE PIN


                      01 ┌──────────┐ 24
Keyboard Y1 ────┤ ├──── Y0 Keyboard input
inputs (lines) 02 │ │ 23 (line)
                 Y2 ────┤ ├──── X3 Keyboard outputs
                      03 │ │ 22 (columns)
Supply voltage ────┤ F ├──── X2 ---//---
Ucc 04 │ │ 21
Sound resistance press- ────┤ ├──── X1 ---//---
Key press TON 05 │ O │ 20
Keyboard Y3 ────┤ ├──── X0 ---//---
      input (line) 06 │ │ 19
Input "Lever ────┤ N ├──── GND Ground
switch "HS 07 │ │ 18
Generator input R2 ────┤ ├──── SEL Select output
                      08 │ │ 17 coefficients
Starting a set ────┤ ├──── CS Selecting a crystal
numbers CONT 09 │ M │ 16
Release release ────┤ ├──── SCL Synchro output
connection BREAK 10 │ │ 15 pulses
Conversation simulator - ────┤ ├──── SDA Serial output
AUTO 11 │ │ 14 code
Gene frequency output ────┤ ├──── NSI Pulse output
rator / 2 F/2 12 │ │ 13 keys
Conversational output ────┤ ├──── SPON Key output
NSA key └──────────┘ speakerphonecommunications
 
 FUNCTIONAL DESCRIPTION OF OUTPUT
 
6./HS/ - lever switch state (input)
 The "on-hook" state corresponds to "1" on this pin,
and the status “off-hook” is correspondingly “0”.
 
8./CONT/ - start dialing (input)
 Input for controlling the dialer in auto-dial mode. Manager
The change occurs based on the difference from “1” to “0”. In the absence of a mode
When dialing, this output can be left unconnected.
 
9./BREAK/- Start connection release (input)
 Input for controlling the dialer in auto-dial mode. Manager
The change occurs based on the difference from “1” to “0”. In the absence of a mode
When dialing, this output can be left unconnected.
 
10./AUTO/- Spoken path emitter (output)
 Includes talk path and line state detection circuitry
and dialer control.
 
13./SPON/- Speaker key (output)
 Enables a speakerphone circuit in auto-dial mode when
on-hook.
 
 So at this stage, our phone already has a dialing node
telephone number on the line with the functionauto dialer and node detect-
identification of the caller's number (see numbers 5 and 6 of the newspaper Pro-
tone). The next step into the bottomless realm of telephony will be the analysis and
design, also the main unit of our phone, namely
CALLING SIGNAL FORMER.


The text was typed on November 16, 1997. using the ZX-WORD text editor.