InterhackerspacePBX/Payphone
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The Payphone is a British Telecom Payphone 300
Internally its missing the main logic board and the cash box
Conversion Plan
Pi + usb audio and a sip softphone
Keypad
Its expected the keypad it a standard matrix style that we can connect directly to the pin or via a ATMega chip
LCD
LCD looks to be a 7 segment style, 4 digits
Connections
There are 4 connections internal details of the pins outs can be found below
Main connection 34 pin connector
Pin | Colour | Function | Detail |
---|---|---|---|
1 | Brown | LCD | |
2 | Red | LCD | |
3 | Orange | LCD | |
4 | Yellow | LCD | |
5 | Green | LCD | |
6 | Blue | LCD | |
7 | Purple | LCD | |
8 | Grey | LCD | |
9 | White | LCD | |
10 | Black | LCD | |
11 | Brown | LCD | |
12 | Red | LCD | |
13 | Orange | LCD | |
14 | Yellow | LCD | |
15 | green | Keypad | Row 3 (PL1) |
16 | Blue | Keypad | Col 2 (PL2) |
17 | Purple | Keypad | Row 0 (PL3) |
18 | Grey | Keypad | Col 1 (PL4) |
19 | White | Keypad | Row 1 (PL5) |
20 | Black | Keypad | Row 2 (PL6) |
21 | Brown | Keypad | Col 0 (PL7) |
22 | Red | Spare | N/C |
23 | Orange | Hook | |
24 | Yellow | Hook | |
25 | green | Follow | |
26 | Blue | Follow | |
27 | Purple | Speaker | |
28 | Grey | Speaker | Positive (I think 'RepRap' Matt) |
29 | White | Spare | N/C |
30 | Black | Spare | N/C |
31 | Brown | Spare | N/C |
32 | Red | Spare | N/C |
33 | Orange | Spare | N/C |
34 | Yellow | Spare | N/C |
The hook switch state is:
- Closed, On Hook
- Open, Off hook
Handset 5 pin connector
This connector is keyed, Pin 2 is blocked out
Pin | Colour | Function | Detail |
---|---|---|---|
1 | Red | Speaker | |
2 | N/A | Key | |
3 | Blue | Mic | |
4 | Green | Speaker | |
5 | White | Mic |
Coin accepter
10 pin TBD
Coin holder
14 pin TBD