Delta RT Series User Manual page 12

No. Item
External Batt.
1
Connector
2 RS-485 Port
3 Breaker
4 Fan
Amplon RT series
(Figure 4-2: Rear View of RT-10K-LIB)
Connects with the UPS to supply battery power. Pin
assignment of the external battery connector is shown
as follows.
The lithium-ion battery pack communicates with the
UPS via the RS-485 port.
Serves as a switch for safety protection.
Ventilates the air to avoid overheating.
Function
12