Alarm Connections; Redistribution Methods; Results Of Ganging Method; Port-Network Configurations - Avaya MCC1 Installation And Upgrades

Alarm connections

Table 6: AUXILIARY connector appearances
System
System 75 XE
R 7si
The system you are upgrading may use more than 1M and 1m alarm-monitor appearances. If so, use one
of the following methods to redistribute the alarm-monitor appearances:

Redistribution methods

•
Distribute the alarms to the AUXILIARY connector on an R7si EPN.
•
Parallel the alarms to the connections shown in the table above.
•
"Gang" the alarms so that several external devices share the same appearance.
Note that:

Results of ganging method

— When several external devices are ganged to the same appearance, each device loses its
individual identity.
— An alarm on a shared appearance denotes only that one of several devices reported a
problem. Subsequent maintenance effort is needed to determine which device reported the
problem and the nature of the problem.
— The control circuit pack behind the AUXILIARY connector detects external alarms with a
ground-detector chip. Therefore, if you gang several external devices, every device must
be able to return a true relay ground closure to the AUXILIARY connector. (Alternatives
such as a TTL low driver are inadequate.)

Port-network configurations

Consider the following:
•
Every DEFINITY si port-network configuration holds 1 PPN. This can be either a multicarrier or
single-carrier cabinet.
•
Larger configurations can contain either 1 or 2 EPNs.
•
As shown in
— Basic system that holds only a PPN
— Directly connected systems that hold:
•
Upgrading a System 75 system to an R7si or later system offers an optional 2nd and 3rd port
network.
SI Installation and Upgrades
June 2004
Alarm monitor appearances
1M, 1m, 2M, 2m, 3M, 3m, 3W
1M, 1m only
si port-network configurations, the 3 main port-network configurations include:
•
2 port networks (PPN and EPN) connected directly together
•
3 port networks (PPN and two EPNs) connected directly together
G3V4vs/R5vs/R6vs to Avaya Communication Manager
Task List: DEFINITY vs to Avaya Communication Manager
175