Troubleshooting
9-10
InterReach Unison Installation, Operation, and Reference Manual
CONFIDENTIAL
D-620003-0-20 Rev J
Expansion Hub Faults
Table 9-2
Faults Reported by the Expansion Hub
Alarm Message
Action
{EF01}Software error occurred and recov-
ered
If this happens repeatedly, replace the EH. (Log entry only.)
{EF02}Software error occurred and recov-
ered
If this happens repeatedly, replace the EH. (Log entry only.)
{EF03}Software error occurred and recov-
ered
If this happens repeatedly, replace the EH. (Log entry only.)
{EF04}Software error occurred and recov-
ered
If this happens repeatedly, replace the EH. (Log entry only.)
{EF05}Software error occurred and recov-
ered
If this happens repeatedly, replace the EH. (Log entry only.)
{EF06}Hardware failure (SPI)
Cycle power once. If fault persists, replace the EH.
{EF07}Temperature is too high
Replace the EH if fan failure. Check fan for rotation, airflow blockage, and
dust. Check room environmental controls.
{EF08}Frequency band not programmed
Use AdminManager to program the frequency band.
{EF09}Hardware failure (PLL Unlock)
If fault common to more than one EH, replace the MH. If only one EH has the
fault, try another MH port. If no fault is reported, flag the previous port as unus-
able and replace the MH when possible. Otherwise, replace the EH.
{EF10}Excessive DL optical loss
Normally this fault is only logged because the optical loss is below the absolute
minimum. EH DL LED is red.
Clean fiber connectors and ports, and check DL cable for excessive optical loss.
If fault common to more than one EH, replace the MH. If only one EH has the
fault, try another port on the MH. If no fault is reported, flag the previous port
as unusable and replace the MH when possible. Otherwise, replace the EH.
{EF11}The DL RF path has excessive gain
If fault common to more than one EH, replace the MH. If only one EH has the
fault, try another MH port. If no fault is reported, flag the previous port as unus-
able and replace the MH when possible. Otherwise, replace the EH.
{EF12}The DL RF path loss is too high
Clean fiber connectors and ports, and check DL cable for excessive optical loss.
If fault common to more than one EH, replace the MH. If only one EH has the
fault, try another port on the MH. If no fault is reported, flag the previous port
as unusable and replace the MH when possible. Otherwise, replace the EH.
{EF13}Hardware failure possibly resulting
in degraded performance
Replace the EH.
{EF14}Hardware failure possibly resulting
in degraded performance
Replace the EH.
{EF15}Hardware failure (UL Laser)
Replace the EH.
{EF16}No MH communications
Clean fiber connectors and ports, and check cables for excessive optical loss. If
fault common to more than one EH, replace the MH. If only one EH has the
fault, try another port on the MH. If no fault is reported, flag the previous port
as unusable and replace the MH when possible. Otherwise, replace the EH.
