Operation 
16 
Siemens Building Technologies   007995_a_en_--.doc
Fire & Security Products    04.2004
 
 
5 Operation 
5.1 Normal operation 
 
In normal operation, the following LED light up: 
 'System ON'  
 'Mode Manned' (if the control unit is in operating mode 'Manned' ist) 
 
5.2  Operating level 2 enabled 
 
General 
Normally the fire detection control unit is blocked for operation. Operation (operat-
ing level 2) is enabled either by entering the password or by means of the key.  
Password 
To enable operating level 2 with the password, proceed as follows:  
1. Enter the password using the numeric keys. 
 The LED 'Operating access' lights up and the operation is enabled. 
2. To block the operating level 2 again, you will have to wait. The operating level 2 
is blocked again automatically 3 minutes after the last input.  
 The LED 'Operating access' no longer lights up. 
Key 
To enable operating level 2 with the key, proceed as follows:  
1. Insert the key in the lock and turn it clockwise by 90°. 
 The LED 'Operating access' lights up and the operation is enabled. 
2. To block operating level 2 again, take the key from the lock.  
 The LED 'Operating access' no longer lights up.