The ER502 is a RS-485 single access portal reader interface unit designed to greatly increased the flexibility design of the Matrix V system. Door peripherals like readers, keypads and door locking mechanisms are directly connected to ER502 to provide a tamper proof solution and to reduced the cabling works and costing from door peripherals to the main controller. 
 

• RS-485 connectivity 
• Enhanced baud rate of 57600bps 
• Support up to 7 different card format 
• Customer Code support for higher security 
• 10 Off Line supervisory cards