Technical standard | Meet the requirements of GB 26851-2005 |
Operating Voltage | DC20V~26V |
Monitor current | T+ 、T- ≤380uA; DC24V ≤420uA |
Alarm current | T+ 、T- ≤1.5mA; DC24V ≤80mA |
Sound level | 75dB~100dB |
Change tone cycle | 0.2S~5S |
Line system | Two alarm buses T+, T- (with polarity) Two power bus 24V, GND (with polarity) |
Lighting frequency | 1Hz to 2Hz (red light) |
Alarm method | Light, sound |
Operation place | Indoor type (in house) |
Operating temperature | -10℃~+55℃ |
Relative humidity | ≤90% |
Dimensions | 88mm×41mm×88mm(L×W×H) |
Weight | About 120g(with base) |
Wiring diagram for SM501 Fire audible and visual alarm base
Wiring instructions
1, 3 terminal: T+, T- alarm bus (non-polarity)
2, 4 terminal: 24VDC power (with polarity)
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ICP 11076333-1