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Chloride Active and E-Series UPS User Manual
Chapter 15 Description of the Interface (E-Series)
The E-Series UPS has a standard interface COM A and an optional interface COM B. Protocol data transfer
signal exchange is through COM A RS232 interface or the optional interface (COM B).
signal exchange is through COM A RS232 interface or the optional interface (COM B).
These interfaces can be used for:
• Direct communication between UPS and a computer.
• Integration of the UPS as client into a network with centralized monitoring.
• Transfer of operational states to external alarm systems.
• Integration of the UPS as client into a network with centralized monitoring.
• Transfer of operational states to external alarm systems.
The necessary communication software packages and interface cables are available as accessories.
15.1 Standard Interface COM A
The 9-pin SUB-D connector (pin contacts) contains the RS 232 signals, 5 output signals and 1 input signal.
The RS232 signal RXD can also be used as input signal, when the sequential interface is not used.
The RS232 signal RXD can also be used as input signal, when the sequential interface is not used.
The 5 alarm outputs are open-collector outputs.
Fig. 33: COM A signal Definition and Connection
The interface COM A is galvanically separated from all other circuits.