Program update is the process of activating orderly program changes in the switching equipment software. The
changes are made to a particular software release and/or software release issue to solve a system problem.
The types of program updates available are as follows:
Software Update
Emergency fix.
5.3 SOFTWARE UPDATE
5.3.1 GENERAL
In-service offices receive most official software changes in the form of software updates. The software update
originates as a fix for a problem within the software release. Four external interfaces are employed to provide for the
generation, distribution, and activation of software updates. These interfaces (Figure 5-1 ) are as follows:
(1)
Programmer Support System (PSS):
The PSS originates software updates. After a software update has
been assembled, tested, and approved at the PSS, a software update identification number is assigned. The
software update is then transmitted to the Software Change Administration and Notification System (SCANS)
for distribution.
(2)
SCANS
: The SCANS is a Lucent Technologies time-shared computer system for orderly software update
distribution. Maintenance personnel who subscribe to SCANS may access SCANS daily to receive and
record the software updates. The SCANS also lists any software updates that have been canceled or
changed. Refer to 190-306-010 and PA-591152 for SCANS procedures. For Switching Control Center
System (SCCS) application, see PA-1P139, Section 12.
(3)
SCCS
: Using a 1200-baud dial-up terminal, the SCCS has the capability of remote software update
activation. The SCCS accesses SCANS and triggers the delivery of a software update using the program
update subsystem. Then the received software update is remotely activated from the SCCS via the
maintenance channel.
(4)
CSCANS
: Another external interface which provides for the distribution of software updates only in offices
that are so equipped is the Customer Service Computer Access Network System (CSCANS) interface. The
CSCANS is a Regional Bell Operating Company (RBOC) owned and operated computer system for
automated software update distribution. Subscribing offices may access CSCANS to receive software
updates.
Under normal operating conditions, the software update distribution point is SCANS. However, in an emergency
(such as a SCANS outage), a software update can be transmitted from the PSS over a data link directly to an office.
Maintenance personnel at the SCCS or local office must make a verbal request to the North American Regional
Technical Assistance Center (NARTAC). The field update coordinator then sets up an emergency data link from the
PSS to the switch and manually transmits the software update (after maintenance personnel have primed the switch
for reception of the software update files). Procedures for activating the software update are not altered.
The software update activation responsibility between Lucent Technologies and the operating telephone company
(OTC) is as follows:
During preturnover (new office), retrofit, and restart intervals, the installer is responsible for obtaining and
activating all current software updates which apply to that office.
At all other times in a working office (when not in a retrofit or restart mode), the OTC is responsible for obtaining
and activating all applicable software updates.
235-105-210
October 1999
Copyright © 1999
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