7. Operation and Maintenance
9128-A2-GB20-80 September 2002 7-23
LOS at ISDN PRI (Active/Idle)
(ISDN PRI DBM only)
A Loss of Signal (LOS) condition is detected on the
ISDN PRI interface. Clears when the ratio of ones to
zeros received is greater than or equal to 12.5%.
Active – Backup call was in progress.
Idle – DBM was in Idle m ode.
Only appears when a dial backup module (DBM) is
installed. Possible reasons include:
DBM cable problem.
T1 facility problem.
LOS at Network

1 A Loss of Signal (LOS) condition is detected on the
network interface. Clears when the ratio of ones to
zeros received is greater than or equal to 12.5%.
Possible reasons include:
Network cable problem.
No signal is being transmitted at the far-end
FrameSaver unit.
T1 facility problem.
Monitor Pttn. Active, DL CI
nnnn
,

frame_relay_link

1,2 The unit is monitoring a test pattern on the specified
DLCI on the specified frame relay link.
Monitor

Pttn

Active,
[Interface]
A Monitor Pattern test is active on the specified
interface using a selected pattern.
This test cannot be activated on user data ports that
have Port Use set to Frame Relay.
Network Com Link Down The communication link for the COM port is down,
and the COM port is configured for Net Link.
Network Initiated ISDN BRI Test
Active
(ISDN BRI DBM only)
An ISDN test has been initiated by the ISDN BRI
network and it is currently active.
OOF at DSX-1 An Out of Frame (OOF) condition is detected on the
DSX-1 interface. Possible reasons include:
Incompatible framing format between the DTE
and the FrameSaver unit.
DSX-1 cabling problem.
Table 7-8. Health and Status Messages (4 of 7)
Message What It Indicates
1

nnnn

indicates a DLCI number of 16 through 1007.
2
frame relay link
is one of the following:
– Net1-FR1. The frame relay link specified for the network inter face, Network 1.
– Port-
n
. The frame relay link associated with the user data port.
–
ISDN Link Name
on a non-network IS D N DBM interface.
3Does not apply to a TS Management Link DLCI.