Category DescriptionPhysical protection Industrial Control Protocols do not offer cryptographic pro-tections at protocol level, at physical ports and at control-ler mode switches, leaving them exposed to cybersecurityrisk. Physical security is an important layer of defense insuch cases. The UPS is designed with the considerationthat it would be deployed and operated in a physically se-cure location.• Physical access to the communication lines should berestricted to prevent any attempts of wiretapping orsabotage. It is a best practice to use metal conduitsfor the communication lines running from one cabinetto another cabinet.• An attacker with unauthorized physical access to thedevice could cause serious disruption of the devicefunctionality. A combination of physical access con-trols to the location should be used, such as locks,card readers, and/or guards.• The UPS supports the following physical access ports:RS232, USB and slots for communication cards. Ac-cess to them must be restricted.• Do not connect an unauthorized USB device, CD/DVDor SD card for any operation (for example, firmwareupgrade, configuration change and boot applicationchange).• Before connecting any portable device through USB,CD/DVD or SD card slot, scan the device for mal-wares and viruses.Eaton 91PS/93PS UPS 8-10 kW User's and installation guide© Eaton Corporation plc 2018. All rights reserved. Revision: 003 Document ID: P-164000672 98 (102)
