Invertomatic-Victron (IMV) UPS intelligent (serial communication) cable

pinout

part# VIC-23/2. Works with PowerFLAG software

9 pin D-SUB male connector  to the UPS

UPS Signal Name DB-9 Male (UPS end) DB-9 Female (PC end) PC Signal Name RxD 1 3 TxD TxD 2 2 RxD GND 5 5 Common ground GND 4 7 RTS

9 pin D-SUB female connector  to the computer

Source:www.pinouts.ru