User 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 from 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 Request to send indicator, from DTE.
Yellow RTS from DTE is active.
Off RTS has been removed.
CTS Clear To Send indicator, to DTE.
Yellow CTS to DTE is active.
Off CTS has been removed, indicating that the DL3800 is not sending
valid data.
DTR Data Terminal Ready Indicator
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 to the DTE, so both the LED and the lead
carry the same data
Network LEDs (T-1 through T1-8)
Red Network is in Red Alarm.
Green Network is Active and running.
Flashing Green The network is ready, but there is no activity currently taking place.