ADTRAN E220 HFAC HDSL2 specifications S2 Switch Options arrow indicates default setting

Table 3. S2 Switch Options (arrow indicates default setting)

Switch Function Description

S2-1	S2-2	ES Alarm Threshold
Down	Down	No Alarm
Up (open) ..	Down	15
Down	Up (open)	30
Up (open) ..	Up (open)	150

Selects the threshold for generating an ES alarm. Once the number detected exceeds the threshold, an alarm is generated as programmed by S1-1. The alarm condition is cleared at the next 15- minute boundary.

S2-3	S2-4	SES Alarm Threshold
Down	Down	No Alarm
Up (open) ..	Down	5
Down	Up	15
Up (open) ..	Up (open)	75

Selects the threshold monitored for generating an SES alarm. Once the number detected exceeds the threshold, an alarm is generated as programmed by S1-2. The alarm condition is cleared at the next 15-minute boundary.

S2-5	S2-6	UAS Alarm Threshold
Down	Down	No Alarm
Up (open) ..	Down	5
Down	Up (open)	15
Up (open) ..	Up (open)	75

Selects the threshold monitored for generating an UAS alarm. Once the number detected exceeds the threshold, an alarm is generated as programmed by S1-3. The alarm condition is cleared at the next 15-minute boundary.

S2-7	S2-8	COMM Link Loss Alarm
Down	Down	No Alarm
Up (open) ..	Down	Minor
Down	Up	Major
Up (open) ..	Up (open)	Critical

Selects the type of alarm generated when a loss of communication between the HFAC controller and an HTU-C occurs. This option is switch-selectable only.

Table 4. S3 Switch Options (arrow indicates default setting)

NOTE: Only one of the S3 Switches should be in the down position.

Switch	Function	Description
S3-1	HFAC Fuse Alarm Control	Selects Critical as the type alarm generated if the HFAC fuse
Down	Critical	is blown.
Up	No Alarm
S3-2	HFAC Fuse Alarm Control	Selects Major as the type alarm generated if the HFAC fuse
Down	Major	is blown.
Up	No Alarm
S3-3	HFAC Fuse Alarm Control	Selects Minor as the type alarm generated if the HFAC fuse
Down	Minor	is blown.
Up	No Alarm

4 61221051L1-5, Issue 1 61221051L1-5A