wyatt/escape_gallery_obsidian_vault
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

vault backup: 2026-07-11 16:59:05

Browse Source
This commit is contained in:
John Lyon-Smith
2026-07-11 16:59:05 -07:00
parent b0318f13ae
commit ecb462a16b
82 changed files with 1970 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

27
Notes/Electronics/RJ9 Connectors.md Normal file
View File

@@ -0,0 +1,27 @@
---
tags:
- resource
created: 2026-05-29 18:26
---
## Summary
The RJ9 connector (often referred to as RJ10 or RJ22) is a4-position, 4-conductor (4P4C) modular plug standard used to connect telephone handsets to phone bases.
| Pin Number | Standard Handset Color | Description |
| ---------- | ---------------------- | ---------------------------- |
| **Pin 1** | Blue / White | Handset Receiver (RX) |
| **Pin 2** | Yellow / Black | Receiver / Microphone Ground |
| **Pin 3** | Green / Red | Microphone (TX) Ground |
| **Pin 4** | Red / Green | Microphone Power / TX |
#### Pinout Orientation
When looking at the gold pins of the male plug facing you (with the locking clip facing **down**), Pin 1 is on your **far left** and Pin 4 is on your **far right**. [[1](https://www.youtube.com/watch?v=miMuRXJVNYI&t=3)]
## Notes
## References