Chapter 4 : Rear Panel - Delta RT Series User Manual

No. Item
External Batt.
1
Connector
2 RS-485 Port
3 Breaker
4 Fan

Chapter 4 : Rear Panel

(Figure 4-1: Rear View of RT-20K-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
11