Uploaded June 2022 | Updated September 2026, 2 weeks ago
PCBWay Supports High Precision Advanced PCBs: pcbway.com
This experiment involves setting up a DC current loop so phones or modems can come alive and interact without needing a landline service.
Then an AC ring voltage is added to the simulated phone line so the phones or modems can ring when on-hook.
This is the first step in a bigger project where more complete functionality will be added to the system.
Schematic/Files: github.com/GadgetReboot/RJ_6P6C_Header
PCBs at PCBWay.com:
pcbway.com/project/shareproject/6p6c_RJ_Jack_Breakout_PCB_6ee49e7e.html
Registered Jack details and pinouts
en.wikipedia.org/wiki/Registered_jack#RJ11,_RJ14,_RJ25_wiring
Telephone interface info and circuits
epanorama.net/circuits/teleinterface.html
epanorama.net/circuits/telephone_ringer.html
Phone line info
http://massis.lcs.mit.edu/archives/technical/how.phones.work
elenco.com/wp-content/uploads/2017/10/TT400K-2.pdf
TIA-968-A Technical Requirements for Connection of Terminal Equipment to the Telephone Network
web.archive.org/web/20110723105039/https://www.part68.org/SecureDocuments/TIA-968-A-Final.pdf
CS-03 Part I — Requirements for Terminal Equipment (TE) and Related Access Arrangements Intended for Direct Connection to Analog Wireline Facilities
ic.gc.ca/eic/site/smt-gst.nsf/eng/sf09840.html
If you'd like to support the channel, you can:
Support me on Patreon: patreon.com/gadgetreboot
Become a channel member (click the Join button): youtube.com/c/GadgetReboot
Shop through my affiliate links (I may earn a small commission, costs you nothing)!
Banggood banggood.com/custlink/3vKYLANH8N
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Amazon.com amazon.com/?&_encoding=UTF8&tag=gadgetreboo05-20&linkCode=ur2&linkId=952875a3564e2204d1786f94b9e1a8d3&camp=1789&creative=9325
Amazon.ca amazon.ca/?&_encoding=UTF8&tag=gadgetreboot-20&linkCode=ur2&linkId=70fa82315ac48f03342938bd4fb93535&camp=15121&creative=330641
Videos are mirrored at LBRY/Odysee: odysee.com/@GadgetReboot:4
#ElectronicsCreators
PCBWay Supports High Precision Advanced PCBs: pcbway.com
This experiment involves setting up a DC current loop so phones or modems can come alive and interact without needing a landline service.
Then an AC ring voltage is added to the simulated phone line so the phones or modems can ring when on-hook.
This is the first step in a bigger project where more complete functionality will be added to the system.
Schematic/Files: github.com/GadgetReboot/RJ_6P6C_Header
PCBs at PCBWay.com:
pcbway.com/project/shareproject/6p6c_RJ_Jack_Breakout_PCB_6ee49e7e.html
Registered Jack details and pinouts
en.wikipedia.org/wiki/Registered_jack#RJ11,_RJ14,_RJ25_wiring
Telephone interface info and circuits
epanorama.net/circuits/teleinterface.html
epanorama.net/circuits/telephone_ringer.html
Phone line info
http://massis.lcs.mit.edu/archives/technical/how.phones.work
elenco.com/wp-content/uploads/2017/10/TT400K-2.pdf
TIA-968-A Technical Requirements for Connection of Terminal Equipment to the Telephone Network
web.archive.org/web/20110723105039/https://www.part68.org/SecureDocuments/TIA-968-A-Final.pdf
CS-03 Part I — Requirements for Terminal Equipment (TE) and Related Access Arrangements Intended for Direct Connection to Analog Wireline Facilities
ic.gc.ca/eic/site/smt-gst.nsf/eng/sf09840.html
If you'd like to support the channel, you can:
Support me on Patreon: patreon.com/gadgetreboot
Become a channel member (click the Join button): youtube.com/c/GadgetReboot
Shop through my affiliate links (I may earn a small commission, costs you nothing)!
Banggood banggood.com/custlink/3vKYLANH8N
Aliexpress https://s.click.aliexpress.com/e/_AFeHwB
Amazon.com amazon.com/?&_encoding=UTF8&tag=gadgetreboo05-20&linkCode=ur2&linkId=952875a3564e2204d1786f94b9e1a8d3&camp=1789&creative=9325
Amazon.ca amazon.ca/?&_encoding=UTF8&tag=gadgetreboot-20&linkCode=ur2&linkId=70fa82315ac48f03342938bd4fb93535&camp=15121&creative=330641
Videos are mirrored at LBRY/Odysee: odysee.com/@GadgetReboot:4
#ElectronicsCreators
