Renovation and refurbishment project in a breathtaking location in the heart of Bratislava

verified-userThe Challenge

The main challenge in the Polus Towers project was the integration between access control and the new generation Otis Compass elevator system that uses destination management to optimize traffic. The old-style IO-based elevator control solutions with readers inside carts are no longer compatible with modern elevator systems like Otis Compass as users select destination floor before entering elevator cart and the advanced elevator logic dynamically selects which elevator to use for travel.

Polus Towers being a multi-tenant office building needed a solution that would effectively manage over 3500 users in a secure and convenient manner making sure that all users get access to authorized floors only.

Other project requirements included the use of existing structured cabling, IP-based controllers and wireless access control in areas where cables could not be installed.

verified-userThe Solution

Fully installed and maintained by Last Mile, the CredoID Enterprise software manages access rights of over 3500 users of this multi-tenant
office complex. Five elevators in each tower are servicing 20 and 17 floors. Regular users have access to common areas, such as parking, cafeteria and alike, as well as access to one of the floors in the towers. In order to access the elevator lobby all users must pass through a turnstile. As soon as a user presents his card to the reader on the turnstile, the information from the access control system is passed to the elevator system. The access control system informs the elevator system which floor is authorized for the user. The Otis Compass elevator system with destination management logic selects with of the 5 elevators will be used to transport this user to his preferred floor. The elevator is called automatically and user receives instructions via LCD screen which elevator cart he should use. If a user is authorized to access more than one floor he selects destination via touch screen.

The integration between CredoID and Otis provides security, convenience andspeed to regular users and cost savings to the owner of the building.

HID EH400 controllers and HID iClass readers control turnstiles in the elevator lobby. Regular office doors are controlled by Mercury EP1501, HID EH400 and also Suprema Xpass IP or BioEntry readers, and stairwell doors are protected by wireless Assa Abloy Aperio locks. All field hardware reports to Credo ID Enterprise software, which coordinates data exchange with Otis Compass elevator management system. Five workstations running CredoID software are used for daily administration tasks such as adding new users, monitoring alarms and generating attendance reports. Some tenants have also access to main CredoID Enterprise system and manage their own office space by using CredoID Locations.

Project details


LAST MILE, spol. s r.o.


20-floor and 17-floor towers with 5 elevators each with 100 card readers and 3500 users


Bratislava, Slovakia (EU)


Mercury, HID and Suprema controllers


OTIS Compass elevator system


HID iClass with Suprema BioEntry


CredoID v3.4 access control with 5 workstations and locations module


CredoID – the software suite that integrates hardware from world-leading brands into a robust and powerful system.

Midpoint Security develops integrated solutions for access control and security projects.
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