Managed Gigabit Ethernet Switch The Allied Telesis CentreCOM® GS970M/28PS Layer 3 managed switch features twenty-four 10/100/1000T Gigabit PoE+ ports and four 100/1000X SFP ports. The Power over Ethernet Plus (PoE+) ports provide an ideal solution for connecting and remotely powering wireless access points, IP video surveillance cameras, and IP phones.