DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126
Issue 4
June 1999
Maintenance Object Repair Procedures
9-1162PDMODULE (Processor Data Module) TDMODULE (Trunk Data Module)
9
Besides being used for data calls between terminals, computers, and data
communications equipment, data modules also serve as interfaces to equipment
associated with system features such as System Administration, Station
Message Detailed Recording, Message Center Service, Automatic Call
Distribution, Distributed Communications System, and Audio Information
Exchange. Maintenance for data modules associated with these latter services
are covered by other maintenance objects such as PMS-PRNT, JNL-PRNT, and
PMS-LINK.
Maintenance of data modules is closely related to and interacts with Digital Line
circuit pack maintenance, and test results for data modules can be affected by
the health of the Digital Line circuit pack. Keep this interaction in mind when
investigating customer-reported problems with data modules.
Data modules provide a variety of option switches to allow the customer to select
data rates, parity, keyboard dialing, local, and remote loop back, etc. (The DAA2
Data Adaptor has an AT (Hayes) type interface that allows selection of the above
parameters as well as mode
— linked or stand-alone.) An incorrect selection will
not necessarily cause errors, alarms or test failures, but it can result in service
disruption. Refer to the installation manual provided with the data module for
more information about those options.
This discussion occasionally refers to a station’s service state, which is defined
as follows:
Out-of-Service The port, and thus the data module, have been removed from
service. Causes for this include busyout of the port, removal of the
Digital Line circuit pack and failure of the NPE Crosstalk Test (#9).
Disconnected The port is administered but the associated digital link does not
respond. An administered port is put in a disconnected state after a
system reboot or circuit pack insertion. This state persists until a
link-reset-pass message is received from firmware on the circuit
pack.
In-Service When switch software receives a link-reset-pass message from the
port, the port is placed in service. If the link-reset-pass message is
missed, and an off-hook message is received while the port is in the
disconnected state, maintenance software will run an ID request test
and put the port into service upon receiving a correct response.
