The Hollyland HL-WC01 is a bi-directional 2-wire to 4-wire converter for bridging party-line intercom systems into 4-wire matrix and wireless intercom infrastructure. It can be powered from the intercom line itself with no additional supply, offers auto nulling and adjustable input/output gain, and confirms signal level on a 6-segment LED meter. A simple plug-and-play interface for installers and hire companies tying mixed intercom estates together.
Features
2-wire / 4-wire bi-directional conversion
Auto nulling
Adjustable input and output gain
220Ω termination
6-segment LED level indication
Powered from the intercom system, no additional supply required
Plug-and-play installation
Specifications
| Conversion | 2-wire / 4-wire, bi-directional |
| Termination | 220Ω |
| Level indication | 6-segment LED |
| Power consumption | Under 1.5W |
| Dimensions (H × W × D) | 43 × 120 × 109mm |
| Weight | 0.5kg |
| In the box | 1 × converter, 1 × USB Type-C cable, 5 × mounting screws, user manual |
| Warranty | 1 year |





