
-28-
MAKELSAN UPS
8.3 The computer interface of UPS offer detailed datum and is suit to net route,
workstation, monitoring system, PC, etc.
Computer interface:
It can sostenuto transmit datum through RS232 communication series port and
computer. The datum that UPS offers includes input voltage value, output voltage
value, output frequency, input frequency, battery capacity percent, used load
percent, UPS internal temperature, etc.
8.4 UPS's hardware equipment
DB9 appearance, figure 28
The pin of UPS's DB9 is the following:
PIN2:RS232 RXD
PIN3:RS232 TXD
PIN5:GND
COMMUNICATION INTERFACE
Figure 28
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