Administration/Port B; Maintenance/Port A - Avaya Remote Access - Avaya DEFINITY Manual

Installing the MAPD

Administration/Port B

Administrative Terminals can connect to the MAPD to provide administrative
access to the MAPD with a direct terminal connection.
Option 1 — Null Modem
Option 1 depicts administrative access to the MAPD using a null modem (a
crossover connector that takes the place of two modems). This
arrangement is typically used in the "switch room" and is usually
considered the primary administrative access method for the local
administrator. It is functionally equivalent to Option 2, Modem to Modem.
Option 2 — Modem to Modem
The section of Figure 1 labeled as D depicts a direct terminal connection to
the MAPD using two modems (instead of a null modem.).This arrangement
is typically used in the switch room and is usually considered the primary
administrative access method for the local administrator. It is functionally
equivalent to Option 1, Null Modem.
Maintenance/Port A — Avaya Remote Access
This section of Figure 1 depicts remote access to a MAPD via a modem. For
domestic applications this is used by craft services personnel for diagnostics.
2-8 Issue 3 May 2002