Unit installation
Smart Relay: SREL, SREL.ZK, SREL.ADV 
Content 
7.11  Number of expansion modules ____________________________ 15 
7.12  Pulse length ___________________________________________ 15 
7.13  Interface _______________________________________________ 16 
7.14  Restricted range ________________________________________ 16 
7.15  External Beeper/ External LED ____________________________ 16 
7.16  Log unauthorised accesses ______________________________ 17 
8.0  Serial Interface ______________________________________18 
8.1  Functional Description___________________________________ 18 
8.2  Wiegand Interface (32 bit and 26 bit) _______________________ 18 
8.3  Kaba Benzing, Siemens, Gantner Legic, Primion, Isgus Interface 19 
9.0  Maintenance ________________________________________19 
9.1  Battery Warning and Battery Replacement if you are using 
  the SREL.BAT battery ___________________________________ 19 
9.2  Backup Battery _________________________________________ 20 
10.0  Data sheet __________________________________________21 










