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Operation 75
3.1.14 Communication Interfaces
Your Liebert Series 600T UPS includes the following communication ports:
• Worldwide reporting to a remote terminal through a modem
• Reporting to a local terminal (no modem required)
• Reporting to a local monitor only
• Site reporting to Liebert SiteScan Central Monitoring System
• Reporting via SNMP interface to a building management or network management system
• Selected alarm messages to a Liebert Remote Monitor Panel and to contact closures for customer use
All external communication devices, including the modem, are optional equipment. Connections to communica-
tion ports are made by wiring cables to terminal boards at the SCC. Connection points are shown on the Control
Wiring Interconnect Diagram. Contact Liebert Global Services for a ssistance when attaching an external device
to your UPS system.
Any terminal that accepts the standard 7-bit ASCII codes and conforms to the data link requirements can be used
to interface with the Series 600T UPS. If a printer is used, the terminal must support it. The UPS does not send or
receive any printer control commands.
Data link requirements are:
• Asynchronous RS-232 communication
• Terminals may be configured as DTE or DCE
• Baud Rate:
Modem: 1200 or 2400
Terminal: 2400 only
• Data Bits: 7
• Stop Bits: 1
• Parity: Odd
• Handshaking: Not required
• Full Duplex
Worldwide Reporting
This port transmits UPS system status and history information to a remote terminal in RS-232 format through a
PC-compatible modem.
Auto-Dial
The Series 600T UPS communication program will automatically dial a pre-programmed (customer selected)
phone number when specified alarm conditions occur. The auto-dial phone number, an alternate number, and the
modem baud rate are programmed by using the SCC System Configuration screen. The alarm messages that ini-
tiate an auto-dial call are identified in Table 1.
When the auto-dial function is initiated, automatic dial attempts to the first phone number are made at periodic
intervals for 30 minutes. If unanswered, the system rolls over to the second number and repeats calling until con-
nection is made or returns to first phone number after 30 minutes.
Once a connection is made to a terminal, the system transmits the information on the Present Status Report
screen, then hangs up. The Present Status Report includes the UPS system identification number, date, time,
alarm messages and metered parameter indications.
Requesting Informati on
If your Series 600T is equipped with a modem and telephone line, you can call the UPS and receive system status
and historical information on discharge events. You can place the call from either a remote terminal or a personal
computer with a communications program.
Follow the instructions for your terminal or your communications program to call the UPS. When you make con-
nection, the UPS will send you the greeting: “Hello, you are connected to a Series 600.” At this point, the UPS
will respond to your specific requests for information, according to Table 3.
For example, to see a copy of information on the Present Status Report screen from the SCC (see Present Status
in this manual), press the A key (either upper or lower case can be used for all except the date and time com-
DISCONTINUED
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