Verilink SCC 2020 (880-503268-001) Product Manual Bedienungsanleitung PDF herunterladen (Seite 64)

Diagnostics

-6

Verilink SCC 2020 User Manual

Front Panel LEDs

This section describes the function of the SCC 2020 LED indicators.

EQPT LED

The EQPT (equipment) LED is a tri-state indicator with six states, as

follows:

Table 5-3 Equipment LED States

NOTE:

“Solid Red” events take priority over “Flashing Red” events,

except when a loopback is enabled.

State Meaning

Solid Green The signal being transmitted by the local DSX-1 equipment is

OK or the SCC 2020 card is configured for Mux mode (in Mux

mode the EQPT LED is

always

green)

Solid Yellow The SCC 2020 is in a loop which faces the Equipment port

(Repeater Loopback or Equipment Loopback)

Solid Red A continuous error condition exists (Loss Of Signal, Loss Of

Frame, Alarm Indication Signal, Remote Alarm Indication

Signal) in the signal (or lack of a signal) being transmitted by

the local DSX-1 equipment

Flashing

Red to Off

Bipolar Violations, CRC-6 Errors, or a low density condition

have been detected in the local DSX-1 equipment transmit

signal

Flashing

Red to

Yellow

The SCC is looped toward the equipment (RLB, ELB) and errors

are detected in the data stream being transmitted by the

equipment

Not Lit The SCC has no power or, if other LEDS are lit, the SCC is

defective

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Verilink SCC 2020 (880-503268-001) Product Manual Bedienungsanleitung Seite 64