User manual

Configuring an uninterruptible power supply (UPS)
Cobalt RaQ 4 User Manual 151
Configuring an uninterruptible power
supply (UPS)
The are two options for configuring the RaQ 4 for a UPS: as the master or as a
slave .
The master communicates directly to the UPS through the serial port. The slave
(or slaves ) communicates with a master (not a RaQ 4 server) over the network to
verify the status of the power supply.
If you configure a RaQ 4 as a master , the RaQ 4 configures itself automatically.
Before choosing this option, you must first connect the UPS to the RaQ 4 through
the serial port; see Figure 58 for the correct serial port.
If you configure a RaQ 4 as a slave , the LCD screen prompts you for the
IP address of the device that is configured as the master.
Figure 58. Serial port for UPS connection
✍
Note: The RaQ 4 server cannot act as a master for other machines.
Allowing slave access by arbitrary machines would pose a security
risk.
The distinction between master and slave is whether the RaQ 4 is
connected directly to the UPS (a master ) or pointed to another
machine that is connected to the UPS (a slave ).
If you configure the RaQ 4 as a slave , you must have, on the
network, a machine acting as a UPS master that is configured to
allow slave access for the IP address of your RaQ 4.
100 - 240 VAC 50/60 Hz
1.4 A 60W max
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Link Tx/Rx Link Tx/Rx
Serial port for UPS connection