Section 4, User Interface Guide ATLAS 550 System Manual
166 © 2002 ADTRAN, Inc. 61200305L1-1F
MODULES (NXT1HSSI) > T1 MENUS > ALARM STATUS
Read security: 5
Displays the current alarm status for each of the built-in T1 ports located on the NxT1 HSSI and NxT1
HSSI/V.35 Option Modules.
MODULES (NXT1HSSI) > ALARM STATUS > PRT
Read security: 5
Indicates the operating port number for the selected T1 interface. There are four available T1 interfaces on
the NxT1 HSSI and NxT1 HSSI/V.35 Option Modules.
MODULES (NXT1HSSI) > ALARM STATUS > ALARMS
Read security: 5
Provides a listing of possible alarm conditions on the T1 interface. An asterisk (*) indicates the presence of
an alarm condition and a hyphen (-) indicates no active alarm. The following alarms are monitored:
MODULES (NXT1HSSI) > ALARM STATUS > RX LEVEL
Read security: 5
(Receive Level) Indicates the strength of the signal received on the port (in dB).
MODULES (NXT1HSSI) > PERFORMANCE CURRENT
Write security:3; Read security: 5
The performance fields (either current, 15-minute total, or 24-hour total) provide status on key
performance measures as specified in ANSI T1.403 and AT&T TR54016 for the T1/PRI port. Except for
CLR, these fields are all read-only. The monitored parameters include the following:
LOS Indicates a loss of signal detected on the port interface.
RED Indicates the inability to frame data received on the port. Alternately
referred to as Out of Frame (OOF).
YELLOW Receiving a remote alarm (RAI) on the interface from the far end.
BLUE Receiving unframed all ones from the port Alarm Indicator Signal (AIS).
DS0 ALARM Displays per-DS0 alarm status; that is, at least one DS0 channel is in
alarm if an asterisk (*) appears. These alarms usually indicate the failure
to receive the protocol that has been configured for the DS0.
PRT Displays the port number
CLR Clears performance information for the selected port
ESErrored Second (ES) is a second with one or more error events OR one or more Out Of
Frame events OR one or more Controlled Slips
BES Bursty Errored Second (BES) is a second with more than one, but less than 320 error
events
SES Severely Errored Second (SES) is a second with 320 or more error events OR one or
more Out Of Frame events