Quick Eagle Networks DL3800E - Manual (Page 123)

Diagnostics 6-5
6
The NETWORK E1 port
LED’s on the DL3800E unit
never illuminate. Make sure the E1 cable from your service provider is connected to the
DL3800E.
Make sure that the E1 port is set to configuration other than “NEVER USE”.
Remove the E1 cable from the affected E1 port, and hardloop the interface
by connecting pins 1-3 and 9-11 of the DB-15 port. If the E1 LED lights up,
check your E1 cabling, and contact your service provider.
The NETWORK E1 LEDs
on the DL3800E unit are
constantly red. Check each E1 port configuration to make sure the framing and line code
are what the carrier is providing.
Check each DL3800E unit for excessive errors.
Check the E1 cabling or inside wiring for possible problems.
Verify with the service provider that the local Smart Jack is not looped up.
Perform the hardloop procedure on the affected E1 port to verify that the E1
port is functioning on the unit.
The NETWORK E1 LEDs
are constantly yellow. Make sure no tests are being initiated on the affected E1ports.
Individual E1 port tests cause the E1 LED to turn yellow.
If a test is running, end it by selecting the test, and setting it to Off in the DTE
and NETWORK TESTS MENU.
Verify that the DTE device, the E1 carrier, or the remote unit is not sending
loopup and loopdown codes (check the Alarm & Status Menu).
The NETWORK E1 LEDs
are flashing yellow. Check the CURRENT ALARMS AND STATUS ITEMS MENU to see if the unit
is receiving an E1 yellow alarm or an Alarm Indication Signal (AIS).
Make sure the remote unit is receiving a valid E1. If it is not, it will transmit
a yellow alarm.
Table 6-1 Troubleshooting (2 of 5)
Problem Solution