System OA&M Capabilities
2-4
InterReach Unison Installation, Operation, and Reference Manual
CONFIDENTIAL
D-620003-0-20 Rev J
2.2
System OA&M Capabilities
The InterReach Unison is microprocessor controlled and contains firmware which
enables much of the OA&M functionality.
Complete alarming, down to the field replaceable unit (that is, Main Hub, Expansion
Hub, Remote Access Unit) and the cabling infrastructure, is available. All events
occurring in a system, defined as a Main Hub and all of its associated Expansion
Hubs and Remote Access Units, are automatically reported to the Main Hub. The
Main Hub monitors system status and communicates that status using the following
methods:
• Normally closed (NC) or normally open (NO) alarm contacts can be tied to stan-
dard alarm monitoring systems or directly to a base station for alarm monitoring.
• The Main Hub’s front panel serial port connects directly to a PC (for local access)
or to a modem (for remote access).
Figure 2-2
OA&M Communications
PSTN
RS-232
RS-232
Ethernet
PC/Laptop
running
Modem
Main Hub
Modem
Main Hub
RS-232
ENET/232
Converter
Cat-5/6
RS-232
SC/APC
Main Hub
SC/APC
RJ-45
Expansion Hub
RJ-45
Remote Access Unit
Fiber
Main Hub
AdminManager
or
OpsConsole
Use AdminManager to configure
Use OpsConsole to monitor
and receive communications from
remote or local Unison systems.
or monitor a local Unison system.
Remotely, AdminManager can only
check system status. It cannot
receive modem calls.
TCP/IP
