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DEFINITY Enterprise Communications Server Release 6
Maintenance for R6vs/si
555-230-127
Issue 1
August 1997
Maintenance Object Repair Procedures
Page 10-423DIG-LINE (Digital Line)
10
DIG-LINE (Digital Line)
DIG-LINE maintenance monitors and tests ports on Digital Line circuit packs and
the hardware connected to those ports for lines administered as a digital station.
These include stations with just a digital voice terminal and stations with a digital
voice terminal and a linked data module. Stand-alone data modules, and data
adaptors in stand-alone mode, are covered by the PDMODULE and TDMODULE
maintenance objects. Circuit pack-level maintenance is covered by DIG-BD
whose strategy is described in the XXX-BD section of this chapter. The following
circuit packs support digital lines:
G3r V1 systems support only TN754 and TN754B. TN413 and TN754 are found
only in upgraded cabinets.
Each digital line port supports two 64 kbps information channels (primary and
secondary) and one 8kbps signaling channel. Digital voice terminals always use
the primary information channel. Thus only one voice terminal can be connected
to each port. The secondary information channel can be used to connect a data
terminal via a Digital Terminal Data Module (DTDM) or a Data Adaptor (DA). All
other devices currently supported by Digital Line circuit packs communicate on
1. Where P is the port network number (1 for PPN and 2 or 3 for EPN); C is the carrier
designation (for example, A, B, C, D, or E); SS is the address of the slot in the carrier
where the circuit pack is located (for example, 01, 02, ..., etc.); and pp is the 2-digit port
number (for example, 01).
MO Name (in
Alarm Log) Alarm Level
Initial Command to
Run
1
Full Name of MO
DIG-LINE MINOR test port PCSSpp l Digital Line
DIG-LINE WARNING test port PCSSpp sh Digital Line
Table 10-137. Digital Line Circuit Packs
Code Ports Type Companding Endpoints
TN413
TN754
TN754B
TN2181
TN2224
8
8
8
16
24
4-wire DCP
4-wire DCP
4-wire DCP
2-wire IDCP
2-wire IDCP
A-law
mu-law
A-law/mu-law
A-law/mu-law
A-law/mu-law
7400 series digital voice terminals,
attendant consoles, 510D
personal terminals, MT515 BCTs,
DCP data modules
TN2136
TN2177
TN2181
TN2224
8
16
16
24
2-Wire IDCP
2-wire IDCP
2-wire IDCP
2-wire IDCP
A-law/mu-law
A-law/mu-law
A-law/mu-law
A-law/mu-law
Data Adaptors (DA), Italtel Digital
Telephone Models 1 and 2
(IDT1/2).