The B093-004-2E4U serial console server provides secure in-band (primary network) and out-of-band (alternate channel) remote access to serial- and network-connected routers, network switches, firewalls, PBX systems, UPS systems, PDUs and other devices. It gives reliable network connectivity with dual Gigabit primary and failover Ethernet ports. You can use it in a wide variety of applications, including wiring closets, branch offices, point-of-sale and other remote sites where quick resolution of network issues is imperative. Four serial RS-232 console ports are configured to use standard Cat5e/6 patch cable when connecting to Cisco devices. They integrate with industry-standard directory servers using TACACS+, RADIUS, LDAP and Kerberos authentication. Provides 4 Gb of internal NAND flash memory. Connect one of the four RS-232 ports to an external Multitech MT9234MU-CDC-XT or US Robotics USR5637 USB modem to receive out-of-band (alternate channel) access when remote sites experience a network outage. Features8-Port Console Server with ModemSpecificationsNetwork Standard: 1000Base-XInput Voltage Range: 100 V AC - 240 V ACTAA Compliant: YesProduct Type: Device Server