DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126
Issue 4
June 1999
Maintenance Object Repair Procedures
9-755EMG-XFER (Emergency Transfer)
9
EMG-XFER (Emergency Transfer)
The Emergency Transfer maintenance object monitors the position of the
Emergency Transfer switch(es) on the SYSAM circuit pack(s) in a PPN and the
EPN Maintenance circuit packs in an EPN. It does not monitor whether or not the
system is actually in Emergency Transfer.
Emergency Transfer (ET) provides the ability to connect designated analog
phones to CO trunks when the switch cannot provide minimal phone service.
Each cabinet (PPN and EPNs) has its own ET capability, and there is one
EMG-XFER maintenance object for each cabinet or stack of single-carrier
cabinets.
ET is controlled either automatically by the system, or manually, depending on
the setting of the ET switches as described below.
Emergency Transfer Switches: EPNs and Simplex
SPE
In a simplex SPE PPN cabinet, or in an EPN cabinet, if the ET switch is in the “on”
position, ET is manually invoked and the system has no control of ET. This will
generate a major alarm. In a simplex SPE PPN cabinet or in an EPN cabinet, if
the ET switch is in the “off” position, ET cannot be invoked even if the system
requests it. This will generate a warning alarm. Unless a technician is currently
working on the cabinet, the switches should be left in the auto position, giving
control of ET to the system.
Emergency Transfer Switches: Duplicated SPEs
On a system with duplicated SPE, the switches on both SYSAMs must be in the
manual “on” position to manually invoke ET, generating a major alarm. If the
switch on either SYSAM is in the manual “off” position, ET cannot be invoked,
generating a warning alarm. Other settings give control to the system.
MO Name (in
Alarm Log) Alarm Level Initial Command to Run
1
1. UU is the universal cabinet number as listed in the PORT field of the Alarm or Error Log.
Full Name of MO
EMG-XFER MAJOR test environment UU Emergency Transfer
EMG-XFER WARNING test environment UU Emergency Transfer
