I have DHI-NVR5216-16P-I Firmware version NVR5XXX-I_DH_MultiLang_HumanTemp_V4.000.10BE000.0.R.20200331 and currently plugged in 2 HDBW5231E-Z and 1 N45EM63
PORT 1 HDBW5231E-Z
PORT 2 N45EM63
PORT 4 HDBW5231E-Z
System is plugged in to UPS 1000 VA - tested for voltage drop with voltmeter and...