Chapter 3. Operation61200771L1-1 NxT1 HSSI/V.35 Module User Manual 33T1 M ENUS Read Security: 5Provides information about the four T1 interfaces located on the NxT1HSSI Option Module. This menu is only visible when T1 E NABLE is set toE NABLED.A LARMSRead security: 5Displays an alarm condition on the ATLAS 550 unit. Press toaccess this menu item.LOSIndicates a loss of signal detected on port interface.R EDIndicates inability to frame data received on the port. Alternatelyreferred to as Out of Frame (OOF).YELLOWReceiving remote alarm (RAI) on port.B LUEReceiving unframed all ones from the port Alarm Indicator Signal(AIS).DS0 A LARMDisplays per-DS0 alarm status; that is, at least one DS0 channel isin alarm if an asterisk (*) appears. These alarms usually indicate thefailure to receive the protocol that has been configured for the DS0.R X LEVEL(Receive Level) Indicates the strength of the signal (in dB) receivedon the port.P ERFORMANCEWrite security: 3; Read security: 5The performance fields (either current, 15-minute total, or 24-hour total)provide status on key performance measures as specified in ANSI T1.403and AT&T TR54016 for the T1/PRI port. All fields except C LR are read-only. The monitored parameters include the following:P RTDisplays the port numberC LRClears performance information for the selected portE SErrored Second (ES) is a second with one or more error events ORone or more Out Of Frame events OR one or more Controlled SlipsB ESBursty Errored Second (BES) is a second with more than one, butless than 320 error events
