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System Performance with Advanced Microprocessor Controls
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4.6 Communications
The control system uses a two-wire, RS-422 channel to communicate with remote monitoring systems
via Liebert Site Products. This communication, directly out of the control, uses a proprietary protocol.
Your unit can have a variety of different Site Product devices wired to this port depending on the
monitoring system you are using. Consult the user manual of the appropriate device for specific
installation and operation information.
Liebert Monitoring Devices and Software
• SiteScan Centralized Monitoring System—Stand-alone facility monitoring system
• SiteLink BMS Interface Module—For Modbus or BACnet communication to a third-party moni-
toring system.
• OpenComms Network Interface Card—For Ethernet connection using SNMP protocol.
• OpenComms Nform—Software package to monitor SNMP devices
• Environmental DO Interface Card—For discrete outputs of status and alarm conditions.
• Mini-Remote—Stand-alone individual unit remote monitor
• ECA2 Communication Adapter—For remote service monitoring directly or via a modem.