| General features | PR311SE, PR611, PR621 | PR411DR |
| 12VDC supply | • | • |
| 24VDC, 18VAC supply | - | • |
| Built-in EM 125 kHz proximity reader | • | - |
| Buzzer | • | - |
| Keypad | • except for PR621 | - |
| Mountable directly on a DIN rail 35mm | - | • |
| Outdoor operation | • | - |
| Programmable inputs/outputs | 3/3 | 8/4 |
| First relay output | 1.5A/30V | 1.5A/30V |
| Second relay output | - | 5A 30V or 230VAC |
| Tamper | • | - |
| Programmed manually | • | • reader with keypad required |
| Programmed from PC | • | • |
| CE mark | • | • |
| Communication | | |
| RS485 | • | • |
| RACS Clock&Data | • | • |
| Wiegand 26..66bit | - | • |
| Magstripe | - | - |
| Operation with biometric readers | - | • |
| Operation with long range readers | - | • |
| Functionality | | |
| Number of users | 1000 | 1000 |
| Built-in event buffer | - | - |
| Event buffer in network equipped with CPR32-SE | 250000 | 250000 |
| Real time clock with battery backup | • CPR32-SE required | • CPR32-SE required |
| User groups | • | • |
| Access zones | • | • |
| Schedules | • CPR32-SE required | • CPR32-SE required |
| Access control in elevators | - | - |
| Local APB | • | • |
| Global APB (CPR32-SE required) | • | • |
| Interlocking | • | • |
| Advanced access options: two users mode, conditional access, high security mode | - | - |
| Hotel options | • | • |
| Operation with turnstiles | • XM-2 recommended | • |
| Operation with barriers | • | • |
| Random user inspection | - | - |
| Integration | | |
| Integration with T&A system | | |
| * Basic | • | • |
| * Advanced (RCP Master) | limited | limited |
| Integration with intruder alarm system | • | • |
| Integration with CCTV system (CCTV-DVR) | • | • |