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4.2
Alarms
The alarm relay is a voltage-free single-pole changeover relay, which is activated when any ports on the
local unit designated as aggregates do not have carrier with a remote unit. It is also activated when power
is lost from the chassis.
The relay provides a set of normally-open and a set of normally-closed contacts. These may be used to
drive an external visual or audible alarm or to integrate with a network management system.
4.3
Diagnostics
4.3.1
IP
There are a number of troubleshooting tools in an IP sub-menu beneath the DIAGNOSTICS menu. These
tools allow the user to run the ping protocol (ICMP echo) from the V100, view the current internal IP route
table, view the statistics from the IP router, view the statistics from the Ethernet device, and view the
Address Resolution Protocol (ARP) table. When the network is not performing as expected, these tools can
be used to troubleshoot behaviour.
The Diagnostics, IP sub-menu is shown below:
V100 Versatile Multiplexer Technical Manual Version 2.2
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C H A P T E R
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