Nortel Meridian Meridian 1, Planning, Installation And Operating Instructions

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Page 464 of 536 Chapter 25 — Fault locating and clearing
553-3121-210 Standard 3.0 January 1999
Accessing the system
When replacing equipment, you send maintenance commands to the system
software to disable faulty equipment and to software enable and test newly
installed equipment.
You send maintenance commands to the system through the system terminal
or the maintenance telephone. This section gives the procedures for accessing
the system through these devices.
Access through the system terminal
You can send maintenance commands and receive system messages by
accessing the CPU through an RS-232 device, such as a video display
terminal (VDT) or teletypewriter (TTY).
When you access the system through a system terminal, a login procedure is
required. All system passwords are initially set as 0000, but you can change
passwords through the Configuration Record (LD 17).
If a sysload (SYSLOAD) occurs before you save a new password in a data
dump, the last active password remains valid.
Each system has two levels of passwords: level 1 is for general use, level 2 is
for administrative use. Either password is accepted in the login procedure.
Procedure 83 describes how to access the system from a terminal.