Nortel Meridian 1 Planning, Installation And Operating Instructions page 459

Page 440 of 536
553-3121-210 Standard 3.0
Chapter 25 — Fault locating and clearing
System messages are codes with a mnemonic and number. Some messages
contain additional information indicating the location of the fault, such as
BSD090 MAIN. The mnemonic identifies a software program or a type of
message. The number identifies the specific message. Table 54 gives an
example of the format for a system message.
See the Option 11C Compact software guide for a description of all
maintenance commands and the interpretation of all system messages.
Table 54
System message format
System message:
BSD090 MAIN
BSD090
MAIN
Local and remote access
A system terminal can be connected at the main and expansion cabinets.
When a system terminal is installed locally, it is connected directly to a Serial
Data Interface (SDI) port, located within the main or expansion cabinet, or
within both cabinets. When a system terminal is installed at a remote location,
modems and a telephone line are required between the terminal and the SDI
port.
When a system terminal is installed at the main cabinet, it is connected to a
Serial Data Interface (SDI) port located within the main cabinet.
When a system terminal is connected to an expansion cabinet, it is connected
to a Serial Data Interface (SDI) port which is part of the Fbr Rcvr card in the
expansion cabinet.
When a system terminal is installed at a remote location that does not have an
expansion cabinet, modems and a telephone line are required between the
terminal and the SDI port.
January 1999
Interpretation
This message concerns power equipment or
information generated by the system monitor
Additional information indicating a power fault
in the MAIN cabinet