Communication
Power Xpert
TM
9395 550/275 UPS (225–550 kVA) Installation and Operation Manual 164201716—Rev 8
www.eaton.com/powerquality
8-5
8.7
Relay Interface Module II
An optional RIM II uses relay contact closures to indicate the operating status and alarm condition of the UPS
system. The module uses a serial interface line and may support up to eight critical loads. The RIM II can be
flush–mounted or surface–mounted on a desktop, or secured to a wall. Figure 8-3 shows the RIM II with its
four 15–pin connectors labeled J1 through J4.
Figure 8-3. Relay Interface Module II
The RIM II can provide the status and alarm signals shown in Table 8-2.
Table 8-2. Customer Interface Connectors
Status
J1 through J4
Description
UPS AVAILABLE
Pins 1 and 12
Contacts are closed when the UPS is operating in Online mode or ready to supply the load.
UPS OFFLINE
Pins 3 and 13
Contacts are open when the UPS is offline.
Contacts are closed when the UPS is operating in Online mode.
BATTERY WEAK
Pins 5 and 14
Contacts are closed when approximately two minutes of battery time is remaining before the
critical load is lost.
UTILITY FAILURE
Pins 6 and 15
Contacts are closed when Utility Failure is detected.
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