ADTRAN E220 HFAC HDSL Unit Options, Errored Seconds ES Alarm, 61221051L1-5A 61221051L1-5, Issue

the address, select the desired address in the Options Setup Screen (Figure 11), or set the rotary switches as indicated in Figure 2.

Unit Options

Two banks of configuration switches (S1, S2 and S3, see Figure 2 and 3) are used to select advanced alarm reporting features (see Tables 2, 3 and 4).

Errored Seconds (ES) Alarm

The locations shown in Figure 4 are monitored for errored seconds and counts are maintained for each location.

If any of these counts exceed the ES programmed threshold (see Tables 1 and 2) an alarm will be generated. This alarm threshold and the alarm type (minor or major) can be programmed by setting switches S1 and S2 (Figure 2) to the appropriate positions, according to Tables 1 and 2.

The alarm thresholds are for the 15-minute registers only, and the 15-minute ES counts are zeroed at each 15-minute boundary. The ES alarm threshold and alarm type can also be configured in the Craft interface Options Setup screen.

REAR VIEW

SW3

Up

Figure 3. SW3 Location and Options

Table 2. S1 Switch Options (arrow indicates default setting)

Switch Function Description

S1-1	Errored Seconds
Down	Minor Alarm
Up (open)	Major Alarm

Selects the type of alarm generated when the errored seconds (ES) counter exceeds the programmed threshold (see Table 2, S2-1, S2-2).

S1-2	Severely Errored Seconds
Down	Minor Alarm
Up (open)	Major Alarm

Selects the type of alarm generated when the severely errored seconds (SES) counter exceeds the programmed threshold (see Table 2, SW2-3, SW2-4).

S1-3	Unavailable Seconds
Down	Major Alarm
Up (open)	Critical Alarm

Selects the type of alarm generated when the unavailable seconds (UAS) counter exceeds the programmed threshold (see Table 2, SW2-5, SW2-6).

S1-4	S1-5	HFAC Fuse Alarm Type
Down	Down	No Alarm
Up (open) ..	Down	Minor Alarm
Down	Up (open)	Major Alarm
Up (open) ..	Up (open)	Critical Alarm

Selects the type of alarm generated in response to an HFAC fuse failure. Switch SW3 must also be set correctly for this alarm to function properly (see Table 3). This option is hardware- selectable only.

S1-6	S1-7	HTU-C Fuse alarm Type
Down	Down	No Alarm
Up (open) ..	Down	1 or more: Critical
Down	Up	1: Major, 2-13: Critical
Up (open) ..	Up (open)	1-5: Major, 6-13: Critical

Selects the type of alarm generated in response to a specific number of HTU-C fuse failures.

S1-8	HCOT-CTL Fuse Alarm Type
Down	Major Alarm
Up (open)	Critical Alarm

Selects the type of alarm generated in response to an HCOT-CTL system controller fuse failure. This option can only be selected by switch.

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