When there are multiple computer rooms and are monitored at the same time, it is possible to generate a hierarchical deployment of the monitoring system.

The EPO status interface of the UPS5000-E can select a normally open or normally closed interface according to actual use.

When the UPS2000-G shuts down the stand-alone system, which one of the following needs to be operated?

When the ECC800 detects that the connection signal to the device is interrupted, a communication interruption alarm is generated. What are the possible reasons? (Multiple choice)

If the ECC800 is configured with a SIM card, the SIM card should be installed in ().