Instruction manual

ATLAS 800 Series System Manual T3 D&I Option Module

DS1 DS0 Alarm

Read security: 5

Displays per-DS0 alarm status for each T1 in the T3 circuit. These alarms usually indicate the failure to

receive the protocol that has been configured for the DS0.

DS1 Sig Status

Read security: 5

Read-only field that indicates signaling of all 24 DS0s for each T1 in the T3 circuit. The A/B bits for Rx

(receive) and Tx (transmit) DS0s are shown when the T1s are configured for D4 and ESF framing. Dashes

display for those DS0s where robbed bit signaling (RBS) is not being transferred by the ATLAS 800

Series.

DS1 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.

Prt Displays the T1 number (1-28).

Clr Clears performance information for the selected T1.

ES Errored 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.

SEFS Severely Errored Frame Second is a second that contains four consecutive

errored framing patterns.

LOFC Loss of Frame Count is a count of seconds in which a valid framing pattern

could not be obtained.

Character Description

No Alarm DS0

D Channel Alarm (ISDN)

Frame Alarm (packet)

TBOP Alarm (packet)

PPP Alarm (packet)