RACK TOWER ONLINE UPS
4.011.2017
RTS-ON-user-manual_ENG-R1
8
3.5 Network functions
3.5.1 Communication port
Users could monitor the UPS system through the communication port such as standard RS232 port and standard
USB port with computer. With a communication wire to connect UPS and computer, could simply achieve UPS
management.
☆
RS232 port
：
Foot
1
2
3
4
5
6
7
8
9
Explanation
empty
send
receive
empty
ground
empty
empty
empty
empty
☆
USB port
：
Foot
1
2
3
4
Explanation
+5V
date+
date-
GND
3.5.2 EPO port
（
option
）
EPO is short for Emergency Power Off, EPO port is on rear panel of UPS
, it’s green, in some emergent cases,
users could cut off the output of UPS immediately by operating EPO port. Wiring diagram as below
：
Normally, pin1 and pin2 are connected so that the machine can be working normally. When some emergencies
happen, and when users do have to cut off the output, just need to disconnect the connection between pin1 and
pin2, or there is a anther useful simple way is pulling it out.
3.5.3 Intelligent card (option)
This ser
ies High frequency online UPS supply a intelligent slot on rear panel, it’s for SNMP card, dry contact and
USB card, users could insert any type intelligent card from those three into it to monitor and manager the UPS. You
don’t have to turn off the UPS when you install the intelligent card. Procedure as following: