Chapter 2: Installation 
Advisor Advanced ATSx500A(-IP) Installation and Programming Manual  37 
Maximum user number (for users with 
SMS and voice reporting functionality) 
Inhibit / isolate / shunt limit, max. 
Event log capacity 
Note: See also “Events” on page 79. 
15500, which includes: 
- 1000 mandatory events 
- 1500 non-mandatory events 
- 10000 access events 
- 1000 installer events 
- 1000 dialler events 
- 1000 extended events 
Data retention (log, program settings) 
Door controllers supported 
Maximum user number (with door 
controllers connected) 
2000 
17488 (with ATS1831 IUM installed) 
64532 (with ATS1832 IUM installed) 
Note: SMS and voice reporting features are only available for a limited user number. Maximum 
number of users with full control and reporting functionality is given in “General features” on 
page 36. 
Ethernet connection (IP only) 
Half-duplex and full-duplex 
FTP (foiled twisted pair) Cat 5e cable or better 
High current electronic output, rating: 1 A at 13.8 V 
Low current electronic output, rating: 50 mA at 13.8 V 
[1]  Maximum cable length for low current output connection may not exceed 30 m. For longer 
distances, use relay output expansion (for example, ATS624 four-relay expander).