Gadget Reboot
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Description
KS0835F phone line SLIC module breakout pcb
This pcb is a breakout board for the KS0835F SLIC (subscriber line interface) module.
The SLIC module emulates a plain old telephone service (land line central office).
A telephone or modem etc can be connected to this module, which acts as a phone service land line provider.
This can be used to test telephone devices or create a local intercom or telephone network, etc.
It has pins to connect a telephone/device tip and ring, and provides approximately 48 VDC for phone on hook voltage.
A control input can be toggled at a certain frequency to generate over 70 VDC (alternating polarity) on the tip and ring to generate a ring signal.
An output pin indicates whether a phone is on or off hook.
When off hook, there are dedicated pins for an audio input and output connection, allowing audio interfacing with the phone line.
Code
Arduino Uno Sketch
https://github.com/GadgetReboot/KS0835F_Phone_SLIC
Schematic and Layout
Design files
https://github.com/GadgetReboot/KS0835F_Phone_SLIC
Aug 17,2022
3,400 views
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KS0835F phone line SLIC module breakout pcb
This pcb includes support circuitry for the subscriber line interface and provides an RJ phone jack with a header for control/interfacing
3400
2
4
9.38 (2)
Published: Aug 17,2022
Download Gerber file 35
BOM(Bill of materials)
Centroid file
PCBWay Donate 10% cost To Author
File Last Updated: 2023/05/17 (GMT+8)
File update record
2023-05-1720:53:32
Centroid file is updated.
2023-05-1714:05:13
Centroid file is updated.
2023-04-1721:24:46
Parts List (BOM) is updated.
2023-04-1721:24:46
Gerber file is updated.
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I just added it here
I'm working on a project right now to try doing that with ESP32 controlling it. It might be ready in 2 or 3 months if testing goes ok. I did a similar project a few months ago with ESP8266 controlling the module to get 2 phones working with 2 SLICs https://youtu.be/qM0ZhSyA6Jw