American Power Conversion 750XL - Manual (Page 5)

3
B ASIC C ONNECTORS
Serial Port USB Port
Power management software and interface kits can be used
with the UPS. Use only interface kits supplied or approved
by APC.
Use the APC supplied cable to connect to the Serial Port. DO NOT use a standard
serial interface cable since it is incompatible with the UPS connector.
Both Serial and USB Ports are provided. They cannot be used simultaneously.
External Battery
Pack Connector XL models: Use the battery pack connector to connect optional external
battery pack(s). These units support up to ten external battery packs.
See the APC web site, www.apc.com/support for the correct external
battery pack model number for your UPS.
TVSS Screw
The UPS features a transient voltage surge-suppression (TVSS) screw for
connecting the ground lead on surge suppression devices such as tele-
phone and network line protectors.
When connecting grounding cable, disconnect the unit from the utility
power outlet.