IBM 3U Extend Run Operation And Setup Manual page 14

Locate the TVSS GND screw on the rear panel of the uninterruptible power supply and on the rear panel of each extend run
battery pack.
Locate the green/yellow ground wire secured to the rear panel of each extend run battery pack.
Connect the ground wire to the TVSS GND screw as shown in the diagrams below. For multiple battery packs, connect the wire to the
TVSS screw on the nearest battery pack.
Locate the battery pack connectors on the rear panel of the uninterruptible power supply and the extend run battery pack.
NOTE: The connectors on the 7500XHV/1000XHV models are color coded and keyed to ensure proper battery pack
connection.
Install the top panel.
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