AT&T Network Adapter 25 Installation And Maintenance Manual page 212

MAINTENANCE
ERROR MESSAGE
AND DESCRIPTION
DXS Reset; The DXS console has
been reset.
Electronic P o w e r
Overcurrent: A Hybrid
(ZTN79) port EPF chip shut down.
Two ports are effected, for
example, 1-2,3-4,5-6,7-8.
Electronic Power Feed Overload:
A Tie Trunk (TN760B) port EPL
chip went into overload.
Electronic Power
Overload: The "M" lead on a tie
trunk has an external short circuit.
Empty CSMA Queue: (STAR LAN
Interface CP) This error resets the
C P .
Error Log Table Full: Transient
Error Log is full.
External RAM Failure: Port or
CPU/Memory CP error while
r u n n i n g
background
destructive external RAM tests.
4-36
Recoverable; no action required.
F e e d O f f ,
Check the wiring for shorts from
Line the backplane/SIP up to the
phone jack. Check the ATL set at
the SIP. Try swapping ATL sets.
Error removed if Audit passed and
short removed. Audit runs every 4
minutes.
Check the tie trunk pairs from the
back of the cabinet through to the
network for an external short (see
Figure 4-4). If the short is not
detected on the pairs, replace the
b o a r d .
Feed Test Check the E and M leads for
external shorts (see Figure 4-4). If
the short is not on the pairs,
replace the board.
If the reset is not successful
reseat board. If the reseat fails,
replace the CP.
Correct indicated errors, and then
remove entries from the Transient
Error Log to free-up space.
Reseat board. If problem persists,
check or replace appropriate CP.
non-
POSSIBLE SOLUTION