Avaya DEFINITY Server CSI, Руководство по обслуживанию, Страница: 1023 / 1930

DIG-LINE (Digital Line)
Issue 5 October 2002
1023
555-233-119
Figure 28. Digital Line Connections
Only 2-wire Italtel Digital Telephone Models 1 and 2 (IDT1/2) or DAs can be
directly connected to a TN2136. 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.
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