| Mains supply | 230V 50/60Hz.. | 
| Internal power supply | 27V nominal.. | 
| Total output current limited to | 1400mA @ 230V. | 
| Quiescent current | 70mA | 
| Max battery size and type | 2 x 12V 3.2Ah VRLA connected in series | 
| No. of detector zone circuits | 8 (Max. length per circuit is 500m). | 
| Call point resistor value | 470 to 680Ω | 
| Max. devices per detector zone | 20 detectors | 
| No. of conventional sounder circuits | 2 (Max. length per circuit is 500m). | 
| EOL resistor value | 6800Ω 5% Tol. 0/25W (blue, grey, red, gold). | 
| Max. sounder output current | 1400mA (to all outputs). Outputs are fused at 1A. | 
| Weight | 5.0kg. | 
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