User's Manual

Alarm Monitoring Connectivity Options
7-56 InterReach Unison Installation, Operation, and Reference Manual
CONFIDENTIAL D-620003-0-20 Rev K
7.8.6 Network Interface Unit (NIU)
Faults and warnings can also be diagnosed with SNMP using the NIU. The NIU sup-
ports complete interactions with Unison system:
• Gets, Sets, and Traps/Notification
The NIU enables access to multiple LGC systems at a site as follows:
• NIU-4P-NM-1 (Up to four Unison systems)
• NIU-10P-NM-1 (Up to ten Unison systems)
The LGC NIU includes a MIB for integrating into the Network Management System
(NMS) and supports SNMPv1 and SNMPv2c.
Figure 7-25 Network Interface Unit (NIU) Configuration Options
The NIU supports
SNMP access to
Unison / Accel systems
via Ethernet or
dialup
Modem
Can dedicate one
port for an external
modem
Network
Management
System (SNMP
Manager)
py
OR
PPP /
POTS
PPP /
POTS
Phone Line
Secure
TCP/IP
Network
Secure
TCP/IP
Network
Ethernet
Ethernet
Network
Interface Unit
(SNMP Proxy
Agent)
1
NIU-10P-NM-1 supports up to 10 Unison/Accel systems
NIU-4P-NM-1 supports up to 4 Unison/Accel systems (not expandable)