Data-Con (Network Control Driver) - Avaya Definity SI Maintenance Manual

DATA-CON (Network Control Driver)

DATA-CON (Network Control Driver)
MO Name (in
Alarm Log)
DATA-CON
The TN2401/TN794 NetPkt or TN777B Network Control circuit pack contains the
following objects: the SW-CTL (Switch Control), four DATA-CHLs (Data
Channels), the DATA-CON (Network Control Driver), and the generic hardware
that interfaces with the TDM Bus (DATA-BD). The DATA-CON (Network Control
Driver) is the subject of this section. The DATA-CHLs (Network Control Channels)
are also described.
Together the four DATA-CHLs and the DATA-CON provide a data communications
interface that allows DTE equipment connected to port circuit packs to
communicate with software applications running on the system. The DATA-CON
represents the interface to the control channel of the TDM Bus. Each DATA-CHL
represents a dial-up/dial-out asynchronous communication port that interfaces to
the TDM Bus. The DATA-CON supports the signaling required to establish and
tear down a connection between the terminal equipment and a software
application. Data is transported between the terminal equipment and the software
over the connection established over the DATA-CHL.
A system with a single SPE has a single Network Control circuit pack. Thus, there
is a single DATA-CON. A High or Critical Reliability system has two Network
Control circuit packs, one in each of the two SPEs. Thus, there is a DATA-CON on
the Network Control circuit pack that resides in the Active SPE control carrier and
a DATA-CON on the Network Control circuit pack that resides in the Standby SPE
control carrier. Refer to Chapter 6, "Reliability Systems: A Maintenance Aid", and
the STBY-SPE (Standby SPE) Maintenance documentation for discussions of
High and Critical Reliability systems.
From an external (user) point of view, the DATA-CON is not directly accessible via
a system technician command; that is, there is no object command word that
represents it. Instead, the DATA-CON is tested under the guise of the DATA-CHLs
that it controls. The test data-module <ext> [short | long] command tests the
DATA-CON along with the DATA-CHL designated by <ext> but all Test Results are
associated with the DATA-CHL Maintenance Name.
From an internal (system software) point of view, the DATA-CON uses the same
set of tests as the DATA-CHLs. Therefore, the DATA-CON assumes the same
Error Type and Aux Data values as the DATA-CHLs in the Hardware Error Log. It
is also alarmed at the same Alarm Level (that is, MINOR, ON BOARD) in the
Alarm Log. In both logs, the Maintenance Name is DATA-CON.
555-233-123
Alarm
Level Initial Command to Run
MINOR none
Full Name of MO
Network Control Driver
Issue 4 May 2002 10-503