Liebert NXr UPS; 30-200kVA,400V,50Hz
Connectivity Solution
The UPS supports SNMP communication, Modbus protocol communication, dry contact communication and Velocity
protocol communication. This chapter provides information relevant to these types of communication.
Selecting ‘Velocity’ means the system supports the Velocity protocol communication ;
selecting ‘YDN23’ means the system supports SNMP
communication, Modbus protocol communication, dry contact communication
SNMP Protocol Communication
If you need to monitor the UPS through network, you may select the SIC card provided by Emerson Network Power
Co., Ltd. This card supports SNMP protocol.
The SIC card is a network management card. It can make the UPS made by Emerson Network Power Co., Ltd real
network equipment. It can also be connected to the IRM series sensor to provide environment monitoring function.
When the intelligent equipment generates an alarm, the SIC card can notify the user by recording the log, sending
trap information, and sending a mail.
The SIC card provides three approaches for you to monitor your intelligent equipment and equipment room
environment:
- Web browser. You can use Web browser to monito r your intelligent equipment and equipment room
environment through the Web server function provided by the SIC card
- Network management system (NMS). You can use NMS to monitor your intelligent equipment and
equipment room environment through the SNMP function provided by the SIC card
- SiteMonitor, a network management software for equipment room power and environment. You can use
SiteMonitor to monitor your intelligent equipment and equipment room environment through the TCP/IP
interface provided by the SIC card
The SIC card can also work with the Network Shutdown computer safe shutdown program developed by Emerson
Network Power Co., Ltd. to provide automatic safe shutdown function for your computer installed with Network
Shutdown, so as to prevent data loss.
The SIC card should be installed in the Intellislot port.
For the installation and setting information of the SIC card, refer to Site Interface Web/SNMP Agent Card User
Manual in accessory.
Modbus Protocol Communication
The UPS can achieve Modbus communication through the optional Modbus card. For the installation and setting of
the Modbus card, refer to UPS JBUS/MODBUS Adapter User Manual in accessory.
Dry Contact Communication
The UPS provides the following two dry contact communication approaches:
Relay card (option)
Dry contact port
Communication Through Relay Card
The UPS provides an optional Relay card for the user to use dry contact signals to monitor the UPS. The Relay card
should be installed in an Intellislot port of the communication box in the cabinet. For the installation
and use of the Relay card, refer to 8.2.5 Relay Card .
Communication Through Dry Contact Port
For on-site specific needs, the UPS may need auxiliary connection to achieve functions like acquiring external
equipment status information, providing alarm signals to external devices, and remote EPO. These functions are
realized through the following interfaces on the external interface board (EIB):
Input dry contact port
Output dry contact port
EPO input port