LEGRAND KEOR T, Installation Manual, Page: 40 / 52

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6.1. Serial Communication (RS232)
UPS is equipped with Serial Communication as standard. RS232 cable shall be shielded and shorter than
25m.
RS232:
DSUB-9 male connector with the following pin layout shall be used on the UPS side of the connec-
tion cable.
The communication solutions listed below can be used with this port:
• Monitoring Software (Optional)
• External SNMP Adapter (Optional)
Via SNMP; the information listed below can be monitored;
• The Latest Battery Test Date
• UPS Information (example: 220V - 50Hz)
• Input Data (Vin, Fin, Vmax vb.)
• Output Data (Vout, Load Percantge...etc.)
• Battery Situation (Vbatt...etc)
Communication Cable Path
Figure. 8-2
RS232 Pin Layout
PIN# Signal Name Signal Description
2 RX Receive Data
3 TX Transmit Data
5 GND Signal Ground
Table.9