Programming instructions

BASIC CO LINE PROGRAMMING TASKS DX-120 Programming Manual
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Setting the CO Line Type
You can assign each CO line one of the following CO line circuit connection types: CO, PBX, EMPTY, PAGE, and CO
DEV.
Setting the CO Line Type (continued on next page)
LINE
TYPE
DESCRIPTION
CO Standard interface lines that require no special handling for advanced system features.
PBX Invokes system automatic operations for handling of PBX ports. When the user dials a
programmed PBX trunk access code, the system is alerted that the user is accessing a telephone company
facility to make a network call. When this occurs, the system monitors digits dialed after the PBX access
code and compares them against the allowed digit interval table in that station’s class of service.
The programmed PBX trunk access code also tells the system to insert a pause when re-dialing telephone
numbers dialed on that CO line, beginning with the PBX access code. This operation applies for Speedily,
Last Number Redial, Saved Number Redial, MemoPad, and Automatic Redial.
EMPTY Use this assignment for CO lines equipped on the system, but not connected to telephone company net-
work facilities. The EMPTY type eliminates the CO line from access by system features that automatically
access CO line resources.
PAGE The PAGE type identifies a CO line circuit as being connected to special apparatus. This type effectively.
Removes the CO line circuit from automatic access by system features while maintaining its direct accessi-
bility for the specific purpose of its connection. Typical use would include connection of ancillary paging
equipment.
CODEV Identifies a CO line circuit as being connected to special apparatus. This type effectively
removes the CO line circuit from automatic access by system features, while maintaining its direct accessi-
bility for the specific purpose of its connection. Typical use would include connection of ancillary analog
intercom calling device.
T1
Identifies a CO line circuit as being connected to a T1 line. It does not require any special han-
dling for advance system features.
T1/PRI
(ISDN)
Identifies a CO line circuit as being connected to an ISDN (T1-PRI) line. It does not require any
special handling for advance system features.