User`s manual

9
Dual Serial Ports
Communication Protection Ports
Ethernet RJ-45 Network Protection Ports protect standard network
cables.
The Primary computer (with PowerPanel Plus installed) is the computer that you
will use to control the UPS and make any change to the operation of the UPS. The
Secondary computer (with PowerPanel installed) is unable to exhibit any control
over the UPS. When power failure occurs, one of the following shutdown
sequences will be executed.
1. If the Primary and Secondary serial ports are both in use: the Primary
computer will start to count down (user controlled delay) for shutdown (User
Control delay can be set in the PowerPanel Plus software. Recommended
time is 5 minutes).Once the Primary computer is shutdown, the UPS will
signal the Secondary computer and initiate the Secondary to shutdown. The
UPS default shutdown time is 2 minutes. Therefore, it is recommended that
Secondary computer is set to shutdown within 1 minute in PowerPanel
Software.
2. If only the Secondary serial port is in use: the Secondary computer will shut
down following the user settings in PowerPanel Software. However, the
Secondary computer will not be able to signal the UPS to shutdown.
Therefore, the UPS will only power off when it is in low battery.
Figure2: Dual Serial Port and Software Installation
The PR3000 provides two serial ports to allow
connection and communication between the UPS and
two computers. (See Figure 2) This allows the
simultaneous shutdown of two computer systems.
These interfaces are also compatible with the UPS
service provided by Windows 2000, Windows,
Windows NT, Windows XP, Windows Server 2003 and
Mac OS 10X.