The 020-772 is a 4-way sounder output card for Notifier NFS2-8 conventional fire alarm panels (also listed for the Morley-IAS Horizon HRZ range). It adds 4 configurable, monitored sounder circuits with provision for an external power supply, plus 2 digital inputs. Total load is 1.5 A maximum.
Key features
- 4 monitored sounder circuits
- Provision for an external PSU
- 2 digital inputs
- Common or zonal switching
Technical specifications
- Sounder outputs: 26-28.5 V DC
- DIP switch 6 set for loads above 250 mA: 4 x 1 A (maximum 1.5 A in total for 2 or more outputs)
- DIP switch 6 set for loads below 250 mA: 4 x 250 mA
- Digital inputs: 2 x 5-32 V DC
- Sounder PCB input: 20-30 V DC, 5 A
- Current: quiescent 47 mA, alarm/all active 1547 mA
