Optional Multi-Computer Interface System; Optional Ibm" As/400 Multi-Interface System - Liebert 300 series Installation, Operaton & Maintenance Manual

5.16 OPTIONAL MULTI-COMPUTER
INTERFACE SYSTEM
The Multi-Computer Interface System is
designed for configurations where a single UPS
is powering multiple computer tile servers (up to
This option performs an automatic
48).
unattended orderly shutdown of the customer's
operating system in each computer when
necessary. The Multi-Interface Unit (MN)
provides the hardware required to interface the
UPS to each computer. The software provided
allows each computer to monitor the UPS for
power failure and low battery alarm while
operating as a background task on the
computer. After a power failure occurs, the
software performs an automatic shutdown of
each computer when the pre-programmed timer
expires. If the UPS reaches a low battery alarm,
the software will override the timer and perform
This option requires the optional remote contact
board to provide isolated normally closed
contacts. This option includes a shielded
primary cable with a g-pin subminiature D-shell
connector, the Multi-Interface Unit (MIV), and
shielded secondary cables with RJll and 25-pin
subminiature D-shell connectors. Cables are
available in selected lengths f&a 25 to 300 feet.
This option is installed in the field. Refer to
Figure 5-14 for wiring details.
518 Installation,
Operation
and Maintenance
Manual
5.17 OPTIONAL IBM@ AS1400 MULTI-
INTERFACE SYSTEM
The AS/400 Multi-Interface System is designed
for configurations where a single UPS is
powering multiple AS/400 units (up to 8). The
Multi-Interface Unit (MIV) provides the
required UPS status information to each AS/400
so it can perform an automatic unattended
orderly shutdown when necessary. Each AS1400
includes the software required to interface with
activated in the IBM system:
UPS is supplying power
l
Bypass is supplying power
l
. Battery discharging
l
Each AS/400 individually monitors the UPS
status to determine when to initiate a quick
power down to preserve data and protect
hardware during a utility power outage.
This option requires the optional remote contact
board to provide isolated contacts. This option
includes a shielded primary cable with a g-pin
subminiature D-shell connector, the AS/400
Multi-Interface Unit (MIU), and shielded
secondary cables with RJll and g-pin
subminiature D-shell connectors. Cables are
available in selected lengths from 25 to 300 feet.
This option is installed in the field. Refer to
Figure 5-15 for wiring details.