Input Voltage; Direct-Current Uninterruptible-Power Supply - IBM DS8880 Series Introduction And Planning Manual

Input voltage

The DC-UPS distributes full wave, rectified power that ranges from 200 V AC to
240 V AC.

Direct-current uninterruptible-power supply

Each frame includes two direct-current uninterruptible-power supplies (DC-UPSs).
Each DC-UPS includes a battery-service-module set.
The DC-UPSs with integrated battery-service-module sets provides the ability to
tolerate a power line disturbance. Loss of power to the frame up to 4 seconds is
tolerated without a separate feature code. With the extended power line
disturbance (ePLD) feature, loss of power for 40 seconds is tolerated without
interruption of service.
The DC-UPS monitors its own alternating current (ac) input. Each DC-UPS rectifies
and distributes the input ac. If a single DC-UPS in a frame loses ac input power,
that DC-UPS receives and distributes rectified ac from the partner DC-UPS in that
frame. If both DC-UPSs in that frame lose ac-input power, the DC-UPSs go "on
battery." If ac input is not restored within four seconds minimum (or seconds with
ePLD), the storage system commences shutdown.
Activation and Recovery for system failure: If both power cords lose ac input, the
DC-UPS senses that both partner power and local power is running on batteries.
Both stay on battery power and provide status to the rack power control (RPC),
which initiates a recovery process.
Feature codes for battery service modules
Use these feature codes to order battery service modules for your base and
expansion racks.
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DS8880 Introduction and Planning Guide
Table 62. Feature codes for power cords (continued)
Feature code Power cord type
1089 Three-phase Delta (3Ø∆) voltage (four-wire
3+PE (Protective Earth Ground)), 200-240V, 60
A, IEC 60309 4-pin customer connector with
IEC'309 service ready plug, for: United States,
Canada, Latin America, Japan, and Taiwan
(EMEA and other regions can optionally order)
HBL460C9W, Pin and Sleeve Connector, IEC
309, 3P4W
HBL460R9W, AC Receptacle, IEC 60309, 3P4W
Table 63. Feature codes for the battery service module
Feature code Description
1050 Single-phase DC-UPS battery
service module
1052 Three-phase DC-UPS battery
service module
Wire gauge
10 mm² (8 AWG)
Models
984 and 84E, 985 and 85E
986 and 86E, 988 and 88E