Specifications

D8E1T1 Installation and Operation Manual Chapter 3 Configuration
N+1 Redundancy Menu 3-15
Table 3-2. N+1 Redundancy Status Menu Field Descriptions
Field Description
Member of Redundancy
Group: (display field)
Yes means that the D8E1T1 module is a member of an N+1 Redundancy
Group, while No means that it is not a member of an N+1 Redundancy
Group.
Card Type: (display field) Displays whether the D8E1T1 module is configured as Primary or Secondary.
Device State: (display field) Displays the current state of the D8E1T1 module as one of the following:
• Online - The card is good and is on the bus.
• Standby - The card is good and is off the bus.
• Offline - The card has general failure (failure that does not affect back-plane
operations) however, it is blocked from access to the bus.
• Defective - The card has general failure and is on the bus.
• Bus Error - The card has bus failure (failure that will impact other buses)
and is off the bus. Bus Error conditions are any or all of the following:
 System clock is not present
 Frame sync pulse is not present
 Front or rear card is not present.
State (column) A display of OK in this column next to any of the status entries indicates that
the function is operating properly, while a display of Missing indicates that it is
not operating properly.
Change Count (column) Displays the number of state changes since the last time the counters were
cleared. Press C to clear the counters.
Frame Sync Pulse:
(display field)
If the state is Missing, it indicates a loss of synchronization error.
System Clock: (display field) If the state is Missing, it indicates a loss of system clock.
Backplane Timeslot
Management: (display field)
If the state is Invalid, it indicates that the backplane is flooded with more
timeslots than the module can handle.
Communication with
System Mgr: (display field)
If the state is Lost, it indicates that the module has not received any messages
from the DSMC.2 for more than one minute.
Note: If the state reads “Lost,” you most likely have problems with your Octal
T1/E1 Module, not the DSMC.2.
Rear Card: (display field) If the state is Missing, it indicates the rear card is not being detected. The
module will reset after the rear card is detected again.
Framers: (display field) If the state is Bad, it indicates that either one of the framers is bad (hardware
failure).