ST (Straight Tip) uses a bayonet twist-lock coupling with 2.5mm ferrule, common in legacy enterprise and campus network fiber installations.
| Pin | Name | Function | Type |
|---|---|---|---|
| 1 | Fiber Core | Optical signal | BUS |
| 2 | Outer Shell | Ground and coupling | GND |
ST (Straight Tip) uses a bayonet twist-lock coupling with 2.5mm ferrule, common in legacy enterprise and campus network fiber installations.