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Appendix F: SNMP
SNMP Overview
In addition to supporting the basic protocols (Telnet, HTTP, FTP, and SMTP) on TCP/IP, the Pulsar Edge
supports conveying system alarm and control information to a Network Operation Center (NOC) using
the Simple Network Management Protocol (SNMP). SNMP is the most popular protocol for managing
diverse networks. Using SNMP to access management information data and retrieve alarm information
can allow company personnel to more easily manage system performance and remotely find and solve
system problems. A Pulsar Edge serves as an SNMP Agent. A SNMP Host system is used to
communicate to a multitude of SNMP Agents. A number of SNMP Host packages are available such as
HP OpenView, Castle Rock Computing SNMPc, IBM NetView, Lucent OneVision, and Sun Micro’s Net
Manager. ABB also provides a SNMP Host focused on the needs of the power engineer with its Manager
product.
Simple Network Management Protocol is an application-layer protocol designed to facilitate the
exchange of management information between network devices. There have been several releases of
SNMP in its history and the Pulsar Edge implements a SNMPv2C Agent. SNMPv2C is backwards
compatible with SNMPv1.
A key part of the SNMP protocol is the detailed Management Information Base (MIB) that describes all
Agent variables that can be accessed. For the Pulsar Edge, this includes all the objects controlled or
monitored in the system such as: rectifiers, converters, distribution monitoring cards, alarms, etc.
Essentially, all elements described in the T1.317 protocol (see Appendix B) are available in SNMP. The
MIB will be needed by any SNMP Host that wishes to communicate with the Pulsar Edge and can be
retrieved at the “Design Tools and Download” link located at www.abbpowerconversion.com
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