Network Device, DL3800E User's Guide

Front Panel Interface 5-3
5
Front Panel LEDs
Table 5-1 Front Panel LEDs
Indication Description
Test Test In Progress LED
Off No tests are in progress.
Solid Red A test condition exists.
Data Port LEDs
TD Data DTE Activity LED. Represents pulses to DTE.
Green Pulses are being detected.
Off No pulses are being detected.
RD Date DTE Activity LED. Represents pulses from DTE.
Green Pulses are being detected.
Off No Pulses are being detected.
RTS/TA Request to send indicator, from DTE or TA (HSSI)
Yellow RTS from DTE is active.
Off RTS has been removed.
CTS/CA Clear To Send indicator, to DTE or CA (HSSI)
Yellow CTS to DTE is active.
Off CTS has been removed, indicating that the DL3800E unit is not
sending valid data.
DTR Data Terminal Ready Indicator (N/A for HSSI)
Yellow DTR from DTE is active.
Off DTR from DTE is inactive.
Test Indicates the port is in test mode.
NOTE: The Test LED is off only when the port is not allocated
bandwidth. It lights red when there is a HW DTE Loopback or
DTE/NET Loopback in progress. It is connected to the TEST lead
going from the DL3800E unit to the DTE, so both the LED and the
lead carry the same data
Network LEDs (T-1 through T-8)
Red Network is in Red Alarm.
Green Network is Active and running.
Flashing Green The network is ready, but it is not part of the bundle to the DTE.