AEC IST7 Series, User Manual

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2 Overview
UPS IST7 Series (60K-200K)
User Manual
18
NO. Name Illustration
ALARM
(yellow)
On: system control card have alarm signal.
FAULT
(red)
On: system control card fault.
○ ,8 EPO2 input dry contact
Normal close input port of external EPO. The signal is valid
when NC terminal and COM terminal disconnect. The signal is
preset and cannot settable.
○
,9 MODBUS port and
RS232 port
Communication protocol support MODBUS RTU, switch it by
touch screen. MODBUS/RS232 port adopts RJ45 plug to
connect, the Pin definition as shown in Figure2-14, Figure2-15.
○ ,10
MDU port Touch screen communication port.

RS485 port
1--8
RJ45 plug
RJ45
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
Pin definition
：
Pin 1
：
White orange-RS485:A
Pin 2
：
Orange-RS485:B
Pin 3
：
White green-Reserved
Pin 4
：
Blue-RS485:B
Pin 5
：
White blue-RS485:A
Pin 6
：
Green-Reserved
Pin 7
：
White brown-Reserved
Pin 8
：
Brown-GND
Figure2-11 Pin definition of RS485
UPS1
Bypass unit
UPS2
Bypass unit
Figure2-12 RS485 port wiring(Two UPSs)