Operations Manual

IFU Link Manager Overview
2-10 © 1999 Triton Network Systems, Inc. All Rights Reserved.
CONFIDENTIAL & PROPRIETARY
D
O
N
O
T
C
O
P
Y
POWER UNSWITCH
R
AIL
Critical Power Supply Unit Power failed to at least one of the IFU
major subassemblies other than the
transmitter.
T
X FAIL Critical Transmitter The RF transmitter failed. The IFU
cannot transmit valid data across the IFU
link to its paired IFU.
C
ARRIER
F
REQUENCY OFFSET
Major Modem The carrier frequency is approaching the
modem lock limit.
GPI 1 Major External External equipment reports an event.
GPI 2 Major External External equipment reports an event.
IF T
UNING FAIL Major Modem The required Invisible Fiber™
compensation is outside of the allowable
range.
I
NTERNAL COMM
F
AIL
Major Modem, NIC, and/or
Power Supply Unit
Communication between the CPU and at
least one of the internal subcomponents
failed.
I
NTERNAL
T
EMPERATURE HIGH
Major IFU Internal temperature of the IFU is
approaching the upper operational limit of
the IFU as set during configuration.
I
NTERNAL
T
EMPERATURE LOW
Major IFU Internal temperature of the IFU is
approaching the lower operational limit of
the IFU as set during configuration.
LOS SONET F
IBER Major NIC Loss of Signal (LOS) is detected from the
user data optical fiber input port.
NOTE: This alarm displays only on the
Discrete tab of the Alarms window.
M
ODEM POWER
L
OW
Major Modem Modem power is approaching the
minimum operational level of the IFU as
set during configuration.
P
OWER +12V RAIL Major Power Supply Unit The +12 V rail of the power supply unit is
operating outside of its specification.
P
OWER – 48V RAIL Major Power Supply Unit The – 48 V rail of the power supply unit is
operating outside of its specification.
P
OWER MNGMT
T
IMEOUT
Major CPU A timeout occurred before the power
control logic received a message across
the RF link from the paired IFU.
Table 2-1. Alarms
Alarm
Default
Severity
Affected
Subassembly
Description