| ITEM | ELECTRICAL RATING | COMMENT |
| Size | 383mm W x 295mm H x 87mm D metal enclosure | |
| Weight | 5kg | |
| Mains supply | 90 to 270VAC, 50Hz/60Hz | |
| Mains supply fuse | 3 Amp ( F3A L250V) | Replace only with similar type |
| Power supply rating | 3 Amps total including battery charge 28V +/- 2V | |
| Maximum ripple voltage | ≤200 millivolts | |
| Battery type | Two 12 Volt sealed lead acid in series. | 7Ah maximum |
| Battery charge voltage | 27.6VDC nominal | |
| Battery charge current | 0.7A maximum | |
| Current draw in mains fail condition | 0.095 Amps | With buzzer sounding |
| Current draw in second stage alarm | 0.235Amps | Two zones in fire(470 ohm in circuit) |
| Current draw in post discharge condition | 0.310Amps | solenoid outputs active |
| Maximum current draw from batteries | 3Amps | With main power disconnected |
| NAC outputs(sounder & bell circuit) | 26 to 28V DC Fused at 500mA with electronic fuse | 1.2Amp total load over all circuits |
| Fault relay contact rating | 2A /30VDC maximum for each | Volt free changeover contact |
| Fire relay contact rating | 2A /30VDC maximum for each | Volt free changeover contact |
| First stage contact rating | 2A /30VDC maximum for each | Volt free changeover contact |
| Second stage contact rating | 2A /30VDC maximum for each | Volt free changeover contact |
| Extract contact rating | 2A /30VDC maximum for each | Volt free changeover contact |
| Zone quiescent current | 4mA maximum | |
| Terminal capacity | 0.5mm2 to 2.5mm2 solid or stranded wire | |
| Number of detectors per zone | ≤30 PCS conventional detectors | |
| Number of sounders per circuit | Dependent on type and current consumption | |
| Detection circuit end of line | 4K7±5% 1/2 Watt resistor | 3K-5.6K 1/2W |
| Monitored input end of line | 4K7±5% 1/2 Watt resistor | 3K-5.6K 1/2W |
| Sounder circuit end of line | 10K±5% 1/2 Watt resistor | 6.8K-20K 1/2W |
| Extinguishant output end of line | 10K±5% 1/2 Watt resistor | 6.8K-20K 1/2W |
| No. of detection circuits | Four 21 to 28V DC | |
| No. of sounder circuits | Four 21 to 28V DC | |
| Extinguishant release output | 21V to 28V DC. Maximum load 2 Amp | |
| Extinguishant release delay time | Adjustable 0 to 75 seconds | 5 second steps |
| SIL, AL, FLT, RST inputs | Switched – min resistance 0 ohms, max 1k ohms | |
| Detector alarm threshold | 270 ohms to 1K ohms | |
| Call point alarm threshold | 150 ohms to 1K ohms | |
| Short circuit threshold | 0 ohms to 130 ohms | |
| Status unit/Ancillary board connection | Two wire RS485 connection with electronic fuse. | Max. of 32 units-RS485 data cable |
