Specifications

Section 4.2 T1 TDM UIG Total Access 600 Series System Manual

INTERFACES (T1[0]) > STATUS > PERFORMANCE > ES

ES (Errored Second) - For ESF mode, an errored second is defined as a second with one or more Path

Code Violations (PCVs), or one or more Out of Frame (OOF) defects, or one or more Controlled Slip

events, or a detected AIS (blue alarm) defect. For D4 (SF) mode, the presence of Bipolar Violations

(BPVs) also triggers an errored second.

INTERFACES (T1[0]) > STATUS > PERFORMANCE > SES

SES (Severely Errored Second) - For ESF mode, an SES is a second with 320 or more PCVs, or one or

more OOF defects, or a detected AIS defect. For D4 (SF) mode, an

SES is a second with one or more

Framing Error events, or an OOF defect, or at least 1544 Line Code Violations or more.

INTERFACES (T1[0]) > STATUS > PERFORMANCE > SEF

SEF (Severely Errored Frame) - An SEF condition occurs when 2 out of 6 consecutive frame bits are in

error.

INTERFACES (T1[0]) > STATUS > PERFORMANCE > FS

FS (Frame Slip) - A frame slip is defined as one or more frame bit errors in a one-second interval.

INTERFACES (T1[0]) > STATUS > PERFORMANCE > LCV

LCV (Line Code Violation) - A Line Code Violation is defined as a Bipolar Violation (BPV), not including

the B8ZS code word if B8ZS is employed. The number displayed is

LCV events, which is defined as one

or more BPVs in a one-second interval.

INTERFACES (T1[0]) > STATUS > PERFORMANCE > SLP

SLP (Slip Error Event) - This occurs when a received frame is either repeated or deleted. A SLP error

indicates a timing problem.

INTERFACES (T1[0]) > STATUS > PERFORMANCE > UAS

UAS (Unavailable Seconds) - When 10 consecutive SES have been logged, the unit is declared in an

unavailable state, the 10

SES are cleared, and the Unavailable Seconds count begins to increment starting

with 10. The unavailable state is cleared when 10 consecutive non-SES seconds have occurred.

INTERFACES (T1[0]) > STATUS > ALARMS

Displays current alarms and alarm history for T1 interface.