Verilink AS420 (34-00294) Product Manual Manual de usuario Pagina 21

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Testing 13
C
HAPTER
3
C
HAP T ER
3
T
ESTING
Introduction
This chapter describes the diagnostic and test features of the AS420. The unit
is controlled manually using rear panel DIP switches (the DIP switches are
discussed on page 9). The front panel indicators and switch are shown in
Figure 3.1 and described below.
Figure 3.1
AS420 Front Panel
Indicators
The front panel indicators shown in Figure 3.1 convey major alarm conditions
and looping status.
Table 3.1
AS420 Front Panel Indicators
LED Condition Description
PWR Off
Solid
Power off.
Power is applied to the unit.
BPV Off
Flashing Red
Solid Red
No errors.
Intermittent BPV errors.
Continuous BPV errors.
CRC Off
Flashing Red
Solid Red
No errors.
Intermittent CRC-4 errors.
Continuous CRC-4 errors.
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