ADTRAN T200 IDSL Event First Last Current, DDS Sync Loss, Clear, DDS Loop Open, OCU-R Power, Esc

The Event Log, shown in Figure 19, loads and time- stamps IDSL circuit performance anomalies and threshold violations. This screen is a very useful aid in troubleshooting a chronic circuit. It monitors DDS sync loss, DDS open loop, IDSL OCU-R margin, IDSL sync loss, and power-up events. IDSL loop signal-to-noise margin is calculated on a numerical scale from 0-20 with 0 approximately equal to a BER of 1 x 10 -6and 20 equal to virtually a 0 BER.

The Set Circuit ID screen, Figure 20, sets the circuit identification.

CIRCUIT ID:IDSL Test Unit				07/25/00 02:38:13
		EVENT LOG
EVENT	FIRST	LAST		CURRENT	COUNT
DDS SYNC LOSS	07/24/00 11:10:04	07/24/00	20:45:03	CLEAR	255
DDS LOOP OPEN	07/24/00 11:10:04	07/24/00	20:45:03	CLEAR	020
OCU-R MARGIN	-------- --------	--------	--------	CLEAR	---
DSL SYNC LOSS	07/24/00 11:10:04	07/24/00	20:45:03	CLEAR	021
OCU-R POWER	07/24/00 11:10:01	07/25/00	02:00:00	CLEAR	017
LAST LOG RESET	01/03/98 03:33:20
	<ENTER>	To CLEAR the	Event Log
	<ESC>	To exit without destroying data
	Figure 19. Event Log Screen
CIRCUIT ID:IDSL Test Unit				07/25/00 02:38:36
	Set Circuit ID

New ID =

Figure 20. Set Circuit ID Screen

14 61220010L2-5, Issue 3 61220010L2-5C