Product guide

QSSC-S4R Server System Product Guide Chapter 1: System Description
Version 1.0
11
AC Source Related Power Supply Configuration and System Load Limits
The system configuration and load is limited by the number of AC mains power sources available as indicated in
the following table.
Warning To Maintain Safety Compliance - Systems installed using high line AC Voltages (e.g. 220-240V~)
REQUIRE (1) being installed in a location having equipotential bonding (e.g. telecommunication
center; dedicated computer room or a RESTRICTED ACCESS LOCATION); and (2) a service
person check to make sure the out-let socket providing power to the system has protective earthing;
and (3) if socket-outet does not have protective earth the building installation requires providing the
system with a separate protective earth connection to the provided protective earth termination of
the system; and (4) service persons shall note the high leakage warning on the system and take
any necessary safety precautions with respect to potential high leakage hazard. Equipment building
installation shall provide means for connection to protective earth.
Table 8. System Power Supply Configuration and System Load Limits
Number
of
Power
Supply
Modules
Installed
AC Redundant Systems
(Requires 2 AC Sources)
AC Non-Redundant Systems
(Connected to 1 AC Source)
Max. DC
Loading
to Support AC
Redundancy
Installation Requirements
Max. DC
Loading
for AC Non-
Redundant
Systems
Installation Requirements
1 NA NA 830 W
1 PSU connected to mains
(1+ 0)
2 830 W 1 PSU connected to mains
1 PSU connected to an
isolated AC source. E.g UPS
(1+1)
1580 W 2 PSUs connected to mains
(2+0)
3 NA NA 2320 W
3 PSUs connected to mains
(3 + 0)
4 1580 W 2 PSUs connected to mains
2 PSUs connected to an
isolated AC source. E.g. UPS
(2+2)
2320 W 4 PSU connected to mains.
(4 + 0)
Power Supply Modules (PSU)
The QSSC-S4R hot-swap power supply modules are rated at 100 -127/200 - 240V AC, 50/60 Hz, 28/14 A. The
output rating of each power supply is 850 watts when operated between 200 VAC and 240 VAC. Modules are
current-sharing and have auto-ranging input. The power supply modules have universal AC input with Power
Factor Correction (PFC) Distributed Power Supplies (DPS). The AC input receptacle is an IEC-320 C14 15A
rated for a 250 VAC minimum.
The power supply operates over the range and limits shown in the following table.
Table 9. AC Input Rating
Parameter Minimum Nominal Maximum Start Up VAC Power Off VAC
Voltage (115) 90 Vrms 100-127 Vrms 140 Vrms 85 VAC +/-4
VAC
75 VAC +/-5 VAC
Voltage (220) 180 Vrms 200-240 Vrms 264 Vrms
Frequency 47 Hz 50/60 63 Hz