Troubleshooting
11-8
9124-A2-GH30-00
June 1999 - Preliminary
Table 11-1.
Alarm Conditions (4 of 6)
Alarm Condition
What To Do
What It Indicates
LOS at ISDN PRI
(Active/ Idle)
For an ISDN PRI DBM
interface, Active indicates
that a backup call was in
progress when the ISDN
network failure was
detected, and Idle indicates
that the call was in idle
mode when it was
detected.
There could be a cable
problem, the far-end unit
may not be transmitting a
signal, or there may be a
T1 facility problem.
For the network or DSX-1
interface:
1. Check that the cable is
securely attached at both
ends.
2. Verify that the attached device
is operational.
3. Contact your network provider.
LOS at OCU-DP,
Slot-s Port-p
For an OCU-DP interface,
an LOS is declared when a
signal has been absent on
the local loop for more than
two consecutive minutes.
For the DSX-1 interface:
1. Check that the cable is
securely attached at both
ends.
LOS at OCU-DP,
Slot-s Port-p
This condition clears when
the ratio of ones to zeros
received is greater than or
equal to 12.5%.
For the DSX-1 interface:
1. Check that the cable is
securely attached at both
ends.
LOS at OCU-DP,
Slot-s Port-p
This condition clears when
all monitored control leads
are in a suitable state and a
clock is detected.
For the DSX-1 interface:
1. Check that the cable is
securely attached at both
ends.
Loss of Loop Timing,
Slot ss Port p
The identified OCU-DP
interface cannot recover
timing from the received
signal on the local loop.
This typically occurs when
the CPE CSU/DSU is
misconfigured for the wrong
rate (e.g., 19.2 kbps) when
the OCU-DP is configured
for 56K or Switched 56
operation.
Check that the CPE CSU/DSU
rate matches the OCU-DP rate.
Module MisConfig,
Slot-s
The APM connected to the
NAM is not configured as
defined in the NAM’s
configuration table.
1. Replace the APM with the
type of APM specified by the
configuration table.
2. Change the current
configuration to reflect the
type of APM in the slot. To do
this, edit the configuration,
accept the APM, then save the
configuration.
Network Com Link
Down
The communication link for
the COM port is down and
the COM port is configured
for Net Link.
Check the router connected to
the COM port.
Содержание FrameSaver SLV 9124
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