750–1000 VA · 120VAC · Entry-Level Lithium Rack UPS · Platform Comparison P91-1kLi vs APC Smart-UPS SMTL750RM2UC The P91-1kLi and APC Smart-UPS SMTL750RM2UC represent entry points in the lithium UPS market. The P91-1kLi is online double-conversion at 1000 VA; the SMTL750 is line-interactive at 750 VA. The P91-1kLi adds LiFePO₄ chemistry, operation up to 50 °C, […]
Configuration guide UPS with an isolation transformer The TX91 builds an isolation transformer into the UPS, but it starts at 3.8 kVA. Below that, isolation is a pair: a UPS for backup, and a transformer downstream of it for galvanic separation. Two pairings cover the range from a single POS lane up to a 2 kW laboratory […]
Backup Power · For Parking Guidance Systems UPS for Parking Guidance Systems Parking guidance is the load most often sized wrong, because it does not sit in one place. The sensors, PoE switches, zone controllers, and directional signs are distributed across every level of the structure. Only the head-end server is central. That makes guidance […]
Optical Network Terminals · Passive Optical LAN · GPON · Backup Power UPS for ONT and passive optical LAN Passive optical LAN earns its name at the middle of the network, where unpowered optical splitters replace the switches that used to fill a floor closet. What the architecture does not remove is the electronics at […]
2000 VA · 120 VAC · Pure Sine Line-Interactive Rack UPS · CyberPower Smart App Sinewave Comparison P80-2000 vs CyberPower PR2000RT2U The Xtreme Power P80-2000 and CyberPower PR2000RT2U are 120 V pure sine wave line-interactive 2U rack/tower UPS with AVR. The PR2000RT2U is unity power factor and rates higher real watts (2000 W vs 1800 W) in a […]
3000 VA · 120 VAC · 0.9 PF Pure Sine Line-Interactive Rack UPS · Vertiv Liebert PSI5 Comparison P80-3000V2 vs Vertiv Liebert PSI5-3000RT120 The Xtreme Power P80-3000V2 and Vertiv Liebert PSI5-3000RT120 are 120V pure sine wave line-interactive 2U rack/tower UPS with AVR and external-battery support, both rated 2700 W. The P80-3000V2 adds a longer 3-year warranty, […]