| Technical standard | Meet the requirements of GB 16806-2005 |
| Operating Voltage | DC18～26V |
| Monitor current | ≤350uA |
| Alarm current | ≤1.5mA |
| Alarm method | Press the glass |
| Confirmation lamp (red) | Start lamp: Normal is flash red and steady when starting. Answer light: Normal is off, and steady green when there is external answer signal. |
| Line system | Two alarm buses: T+, T- (non-polar) Two start lines: 2, 4 (normally open contact output) Contact capacity: DC27V 1A |
| Operating temperature | -10℃～+55℃ |
| Relative humidity | ≤95% |
| Dimensions (without base) | 88mm×28mm×92mm（L×W×H） |
| Weight | About 100g |
| Color | Red |
Wiring diagram for J-SAP-501X Fire hydrant button base
Wiring instructions
1, 3 terminal: T+, T- alarm bus (non-polarity)
2, 4 terminal: Normally open contact
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ICP 11076333-1
Automatic fire 
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