Liebert UPS System user manual Monitoring system

Chapter 6 Maintenance

6.1.7Monitoring system

1.Background communication

The monitoring system of this UPS system provides one RS232 port and one RS485 port (the definition of the port is in Section 3.4.3), several input and output dry contacts (refer to Section 3.4.4). The user can introduce the signal to the nearest management office to conduct equipment management. All the data displayed on the panel will be monitored by background monitoring software. Besides, there are also MODEM and SNMP cards, which are used for MODEM and SNMP communication.

1）RS232 mode

The transmission distance of RS232 mode is shorter than 15m. This RS232 mode is suitable for the short distance monitoring required by UPS operator or user.

2）RS485 mode

The J23 connector on the monitoring board is used for user’s RS485 port. “485+” and “485-” are used as the user’s positive terminal and negative terminal respectively. SHIELD terminal is used as the shielding terminal that connects the shielding layer.

The transmission distance is shorter than 1000m. The user can use any RS485/RS232 converter(such as the OCI-6 provided by us) to realize networking of RS485+RS232 mode.

3）MODEM mode

The user can monitor the UPS remotely via a MODEM and the monitoring software- POWERSTAR by dialing the preset telephone number. Refer to “Directions of MODEM” and “Directions of POWERSTAR” for details.

4）SNMP mode

The parts of SNMP card UF-SNMP111 is compatible with 10/100M either net. The SNMP card supports various kinds of protocols of SNMP, TFTP, HTTP and TELNET and providing a solution for high speed network access method.

The user can connect the UPS to the LAN through the SNMP card and realize the network management.

Refer to “Directions of SNMP” card for details.

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