Perle IOLAN SDS32C LDC. Management protocols: SNMP v3. Authentication method: RADIUS, TACACS+, LDAP, ActiveDirectoryNIS, Kerberos, Security algorithms supported: SSH, SSL/TLS, 802.1x RADIUS, 3DES, HTTPS. Console port: RS-232. Dimensions (WxDxH): 264 x 434 x 44 mm, Weight: 3360 g. AC input voltage: 24/48 V