Ablerex KRONOS Installation And Operation Manual page 43

 Communication Slot1
This slot can will accept a Relay card or RS-485 MODBUS card.
 Communication Slot2
This slot will accept a Relay card or SNMP card. Always ensure that the SW2 switch is in
the correct position when this slot is used.
 Batt. Temp.--External battery temperature connector
Connect to external battery temperature sensor. Please refer to section 5-4.
 RS-232
Pin Assignment:
Baud Rate
Data Length
Stop Bit
Parity
This port is available for changing the settings of the UPS by setting software.
 Paral-1&Paral-2—Parallel communication port
Parallel communication cables are required to connect 2 or more UPSs' to each other in
order to operate in parallel. Refer to section 2-7for detail connections.
 H↔U—communication selector
This switch is to select HMI or USB port. This switch must be in the "H" position in order
for HMI port is function.
General alarm
Load on inverter
Load on Bypass
Normal mode
1 2 3 4 5
6 7 8 9
57600bps
8 bits
1 bit
None
41
Default Definition
2TX (OUT)
3RX (IN)
5Ground
OUT-1
OUT-2
OUT-3
IN