37
Appendix 3 - USB Communication Port
Port Definition:
Connection between computer USB port and UPS USB port.
PC USB port
UPS USB port
Description
Pin 1
Pin 1
PC: +5V
Pin 2
Pin 2
PC: DPLUS signal
Pin 3
Pin 3
PC: DMINUS signal
Pin 4
Pin 4
Signal ground
The USB functionality:
◆
Monitor UPS power status.
◆
Monitor UPS alarm info.
◆
Monitor UPS operating parameters.
◆
Timing settings.
The Communication data format:
Baud rate ---------- 9600bps
Byte length ---------- 8bit
End bit ---------- 1bit
Parity check ---------none
CAUTION!
Either the USB or the RS-232
or
the RS-485 interface can be used.
Not more than one will function at a time.