User's Manual

2-4 InterReach Unison Accel Installation, Operation, and Reference Manual PN 9000-10
620021-0 Rev. A
2.2 System OA&M Capabilities Overview
InterReach Unison Accel is microprocessor controlled and contains firmware which
enables much of the operations, administration, and maintenance (OA&M) functionality.
Complete alarming, down to the field replaceable unit (i.e., Hub and Remote Access
Unit) and the cabling infrastructure, is available. All events occurring in a system,
defined as an Accel Hub and all of its associated Remote Access Units, are automati-
cally reported to the Hub. The Hub monitors system status and communicates that
status using the following methods:
• Normally closed (NC) alarm contact closures can be tied to standard NC alarm
monitoring systems or directly to a base station for alarm monitoring.
• The Hub’s front panel serial port connects directly to a PC (for local access) or to a
modem (for remote access).
Figure 2-2 Three Methods for OA&M Communications
AdminManager OA&M software runs on a PC/laptop and communicates with one
Accel Hub, and its downstream RAUs, at a time.
• Connected directly to the Hub’s front panel RS-232 connector, you can access
the Installation Wizard which lets you configure a newly installed system, or
you can access the Configuration & Maintenance panel which lets you query
system status, configure a newly added or swapped unit, or change system
parameters.
• Connected remotely using a modem, AdminManager initiates communications
with the Hub. You can access a read-only Configuration & Maintenance panel
which lets you query system status to help you determine if an on-site visit is
required.
Refer to the AdminManager User Manual (PN 8810-10) for information about
installing and using the AdminManager software.
PSTN
RS-232
RS-232 Ethernet
PC/Laptop
running
Modem
Accel Hub
Modem
Accel Hub
RS-232
ENET/232
Converter
RS-232
RJ-45
Accel Hub
Accel Hub
AdminManager
Use AdminManager to configure
or monitor a local Accel system.
Remotely, AdminManager can only
check system status, it cannot
receive modem calls.
TCP/IP
RAU
1
2
3