Technical data

Chapter 11 317
E1 Analyzer
Making E1 Measurements
E1 Analyzer
• 1:7 - An eight-bit pattern that contains a single 1. Used to test clock recovery.
• 1:3 - A 4-bit pattern with a single 1.
• 1:1 - A 2-bit pattern with a single 1.
• All 1's - A pattern that causes line drivers to consume the maximum amount of
current. If framing is set to 'Unframed' the resulting pattern is equivalent to an
Alarm Indication Signal (AIS).