Advisor Advanced ATSx500A User Guide  3 
Figure 6: ATS1151/ATS1156 readers 
 
On: area set 
Flashing: general alert (EN 50131) 
Green on: AC mains supply on. 
Green flashing: AC mains supply off, or unlocked while unset. 
Red on: all areas set. See also “Access control indication note” 
below. 
Red flashing: unlocked while set. 
On: All zones are in normal state 
Flashing: general alert (EN 50131) 
Keys 0 to 9, numerical data 
Green on: System is disarmed 
Green flashing: Door open time 
Green / red flashing: Valid card presented 
Red (ATS125x): System is armed 
ATS4000: System is not ready 
ATS125x: Always on 
 
Access control indication note 
Access control keypads and readers, which are connected to door controllers 
instead of the control panel, indicate areas in a different way: 
•  Dual LED is lit red when any associated area is set. 
•  Area 1 LED is on when any associated area is set. Area LEDs 2 to 16 are not 
used. 
1 2 3
4 5 6
7 8 9
*
0 #
(4) (5) (6)
(7) (8)
(3)
1 2 3
4 5 6
7 8 9
*
0 #
(3) (4) (5) (6)
(7) (8)