Krone 237A is a specific module format in the Krone LSA-PLUS family used in European telephone exchanges and building cabling for voice and ADSL terminations with IDC contacts for tool-less termination.
| Pin | Name | Function | Type |
|---|---|---|---|
| 1 | Tip | Telephone tip conductor | BUS |
| 2 | Ring | Telephone ring conductor | BUS |