Communication Interfaces
12.0COMMUNICATION INTERFACES
The Liebert STS2 monitoring system offers several choices for communications.
The
Several other communications options are also available. Those options are located a Communications compartment to the right of the touch screen/LED front panel and are accessible when the front panel door is open. See Figures 21 and 22 for the location of the communications options.
Connections to the communication ports are made by wiring to terminal boards located in the Communications compartment. The communications options listed below reference the control wiring drawing for each option.
•Liebert IntelliSlot SNMP/Web/Modbus 485 card (optional) — the card provides connectivity to any
The Liebert SNMP/Web/Modbus 485 card can also integrate the system with an existing Building Management System (BMS) or
See Figure 27 for more information on the Liebert SNMP/Web/Modbus 485 card. If you have questions about the card, refer to the user guide,
•Input Contact Isolator (ICI) Board (optional) — provides an interface for up to eight user inputs. External messages and alarms can be routed to the unit, via the ICI.
See Configuring the Input Contact Isolator Settings on page 96 for instructions on configuring the connections. See Figure 25 for wiring details.
•Programmable Relay Board (PRB) (optional) — up to two PRBs can be installed in the Liebert STS2 to route Liebert STS2 events to external devices.
See Configuring the Programmable Relay Board Settings on page 97 for default settings and instructions for reconfiguring the relays. See Figure 24 for wiring details.
•Comms Board (optional) — includes a terminal block to provide a DTE connection to an external modem. This board also provides a direct connection to a Liebert SiteScan terminal, via an
Data link requirements are Full Duplex Asynchronous
Communications options are also discussed in 6.0 - Options.
12.1Using the RS-232 Port
The
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