The SX-AX20E shall be a one-rack-space unit in a magnetic shielding steel enclosure. It shall operate from 120 volts AC and have a 9-foot, grounded, 3-wire #12 line cord. There shall be 8 grounded AC receptacles on the back panel, with all 8 switched. Overall dimensions shall be 1.75" H x 19" W x 12.25" D. Weight shall be 13 pounds. The unit shall have remote turn-on capabilities enabled by wired Ethernet, serial, and terminal block connections. Remote turn-on and turn-off shall be activated by contact closure or software. It shall have remote control, sequencing, scheduling, measurement, AutoPing, and adjustable trigger functions, and shall support wired RS-232 and Ethernet HTTP, Telnet, SNMP, Syslog, SMTP, and SDxP protocols. The unit shall measure voltage, current (per outlet), power (per outlet), energy (per outlet), and temperature, and shall record events in its internal memory. There shall be two relay outputs for control and cascading. The SX-AX20E shall have a load rating of 20 amps at 120 volts, a self-test circuit with visual indicator, and provide EMI/RFI filtering, inrush current elimination and catastrophic over/under-voltage shutdown. It shall withstand at least 1000 occurrences of surge pulse voltages up to 6000 volts.