Liebert Emerson NX UPS System - Manual (Page 79)

Options—For Assembly Inside the UPS Cabinet
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8.2 OC485 Web Card – Modbus, Jbus, IGM Net
The OpenComms 485 Card facilitates SiteScan Web or Building Management Systems monitoring.
The RS232 port is used for connection to a personal computer for setting up.
The RS-485 port supports IGM Net and Modbus/JBus protocols and maps the operation of the UPS
including status, alarms and data (voltages, currents, frequency, power, power factor, temperatures
etc.)
Figure 42 OC485 Web card
8.2.1 Remote Alarm Monitor
Status and alarm conditions are available on an optional remote alarm monitor (RAM) panel that is
driven by volt-free alarm status contacts from an optional relay alarm board.
Table 28 NX communication options
Physical
description
of port
Labeled
ID Name
of Port
On the UPS
LCD screen,
under Settings,
controlled by:
Monitoring
Devices
supported
Baud
rate Comments
Top
Intellislot
Intellislot 2
(On Monitor Board)
Comm 1
Multiport 4 any
Relaycard-int any
OCWEB-LB
2400
Not simultaneous with
Multilink in RS232-1
Modbus/Jbus 2400
Middle
Intellislot
Intellislot 1
(On Monitor Board)
Comm 2
Multiport 4 any
Relaycard-int any
OCWEB-LB
2400
Not simultaneous with
Multilink in RS232-2
Modbus/Jbus 2400
Bottom
Intellislot
Intellislot 3
(On Monitor Board)
Comm 3
Multiport 4 any
Relaycard-int any
OCWEB-LB 2400
Modbus/Jbus 2400
Top
DB9 port
RS232-1 Comm 1
Multilink Serial
9600
Not simultaneous with Web
card in top Intellislot.
Bottom
DB9 port
RS232-2 Comm 2
Service Software
(Reserved)
9600
Not simultaneous with Web
card in middle Intellislot.