About The -48 Vdc Products - Server Technology 4805-XLS-16B Installation And Operation Manual

About the -48 VDC Products

The following items have been designed into the current -48 VDC products covered in this user manual:
 Sentry firmware version 7.0 is provided with all -48 VDC black units, and with all -48 VDC beige/ivory units with
part numbers ending in "/Q".
 -48 VDC products with Sentry firmware version 7.0 more closely match the feature set of the Server Technology
AC Switched CDUs.
 Generally, greater power distribution (greater than one output/outlet for each input/inlet) is provided.
 Remote power management (Switched outputs).
 Network and Serial RS-232 access.
 Per Outlet Current Sensing.
NOTE: The current sensing per outlet in the -48 VDC units is not the same as Per Outlet Power Sensing (POPS) in the AC product
firmware. The -48 VDC units only measure current (amps).
 For Environmental Monitoring, each master unit supports two combination temperature/humidity probes.
 Over-current protection is provided for each output:
o GMT fuse for low-amp outputs up to 10A.
o TPC fuses for high-amp output up to 125A.
o Circuit breaker protection up to 100A available (with one model).
-48 VDC Remote Power Manager
Installation and Operations Manual
 5
Introduction