Section 1 System Description Total Access 600R System Manual
20 © 2002 ADTRAN, Inc. 61200600L1-1A
Testing
• Local Loopbacks: Line and Payload
• Remote Loopbacks: Line, Payload, CSU Loopbacks, and Fractional T1 loopback per ANSI
T1.403-1995 (Annex B)
• Error Counts: ES, SES, SEF, FS, LCV, SLP, and UAS
• Alarm Status: Loss of signal, Red Alarm, Yellow Alarm, and Blue Alarm