4466 EXTERNAL POWER SUPPLY
- FIRE ALARM SOLUTIONS TECHNICAL DESCRIPTION
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4.8.
FUNCTIONAL OVERVIEW
This overview is an example of how the 4466 power supply can be used.
For more information on 4464 and 4585, see each Technical Description respectively.
1. Out0 / Out1 - not to be used if an expansion board is supplied from the output
2. Alarm devices
3. EOL Device
4. Fire door release magnet
5. Addressable units
6. COM sub loop
4.9.
FAULTS
The 4466 is generating fault signal in the c.i.e. when the following occurs:
• Loss of main power source.
• Loss of standby power source.
• A high internal resistance of the battery and its associated circuit, Ri max.
Value for Ri max, see section 4.4.2. BATTERY PARAMETERS on page 10
• Loss of the battery charger.
