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0170009-J0 Rev B
3.8 Communication Ports
The UPS is equipped with a remote emergency power off (REPO) dry contact input, true RS232 and
USB communication ports to provide communication with bundled UPS monitoring software for remote
monitoring of UPS status via a PC.
Four optional interface cards are available to meet various communication needs (Refer to Section 7):
• DCE (dry contact relay card)
• RS232
• USB
• SNMP/WEB card
The bundled software of the UPS is compatible with many operating systems such as Windows 98, 2000,
ME, NT and XP. For other applications such as Novell, NetWare, Unix, Linux, please contact your local
dealer for suitable software.
All communication ports (including optional cards) can be active simultaneously to monitor the UPS sta-
tus. However only 1 communication interface can be active at any one time. The interface with the high-
est priority controls the UPS. The priority of these communication interfaces are as follows from highest to
lowest priority:
• EPO input port
• Optional Interface card
• USB
• RS232
3.8.1 RS232 Port Settings
Set the RS232 interface as follows:
Baud Rate: 2400 bps
Data Length: 8 bits
Stop Bit: 1 bit
Parity: None
3.8.2 USB Port Descriptions
The USB communication protocol definition complies with：
• USB version 1.0, 1.5Mbps
• USB HID Version 1.0.
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