DEFINITY Enterprise Communications Server Release 6

Maintenance for R6vs/si

555-230-127 Issue 1
August 1997

Maintenance Object Repair Procedures

Page10-425DIG-LINE (Digital Line)

10
Figure 10-27. Digital Line ConnectivityOnly 2-wire Italtel Digital Telephone Models 1 and 2 (IDT1/2) or DAs can be directly connected to a TN2136. AT&T DCP (4-wire) digital voice terminals and data modules can be connected to these circuit packs via Italtel’s 2/4-wire adapter. DAs can operate in either of two modes which are covered by different maintenance objects:Digital Line maintenance interacts with Digital Line circuit pack (DIG-BD) maintenance, and results of DIG-LINE testing can be affected by the health of the Digital Line circuit pack. Keep this in mind when investigating reported Digital Line problems.There are instances where the service state of a station i s mentioned. It is helpful to understand what os ment by the different service states that may exist. The

DA Mode Administered as: Endpoint Maintenance Object

Stand-alone PDM Data endpoint only PDMODULE

Linked DTDM IDT1/2 and optional data

terminal DIG-LINE

TN2136
Digital Line
Circuit Pack
Secondary Information Channel (Data)
Italtel
Digital
Telephone
Model 1/2
Data
Terminal
IDCP
CCITT
V24-V28
Physical Connection
Primary Information Channel (Voice)
Control Channel (Signaling)
Data
Adaptor
(Linked
Mode)
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Digital Line
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Italtel
Digital
Telephone
Model 1/2
Digital Line
Physical Connection
Primary Information Channel (Voice)
Control Channel (Signaling)
(Secondary Information Channel Unused)
Data Adaptors operating in stand-alone mode are treated as
PDMODULE Maintenance Objects.
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Port
Port
Port
Port