Automatic Static Data Downloading And System Maintenance; Routine Exercise Test - Nortel DMS-100 Series Maintenance Manual

Error tracking detects receivers that are defective. Before a receiver is
unassigned, an error count check occurs. When a preset error threshold is
reached, the audit takes the receiver out of service. An audit returns the
receiver to service and sets the error count to zero.

Automatic static data downloading and system maintenance

The system loads the ESA CC with static translations data. The system or
operating company personnel can download this data after ESA RTS when
the ESA CC is InSv.
At a time that the office parameter RLCM_ESADUPD_HOUR determines,
the system updates the static translations data in the ESA CC. The system
performs the equivalent to the LoadPM CC ESADATA command in
sequence on each RLCM with the ESA option. This ESA option is set in
table LCMINV.
Note: The RLCM must not be on the same static update hour as a host
Remote Switching Center (RSC). The static data becomes corrupted.
If the RLCM runs another maintenance function at the automatic update
time, the automatic update process waits 30 s for the function that now runs,
to finish. If the function runs after 30 s, the RLCM goes to in-service
trouble (ISTb) status. The reason for the ISTb is ESA STATIC DATA.
If the automatic update process fails during the loading of the static data, the
RLCM goes to SysB status. If a failure occurs when the system downloads
a table, the system generates an ESA log, ESA101 through ESA107. Each
log identifies and describes the table that fails to download. The system
does not download the remainder of the tables. The RLCM goes to SysB
status and receives a reason of ESA DATA.
Note 1: The RLCM cannot enter ESA while the system loads the static
data.
Note 2: If the RLCM is out of service during the daily update, the
system updates the data as part of the normal RTS sequence.

Routine exercise test

The REX tests are a series of tests performed on the ESA hardware. This
hardware is not in use while the ESA processor provides normal service.
These tests can occur at regular intervals or through the test (TST) command
with the REX option. These tests require that the LCM units of the RLCM,
RMM and ESA processor are InSv.
The REX test tests the ability of the LCM units to enter and exit ESA mode.
The REX tests also test the ability of the LCM unit to send messages to the
ESA processor while in ESA mode. An REX test tests one LCM unit at a
DMS-100 Family RLCM Maintenance Manual XPM12 and up
ESA maintenance overview 3-29