AT&T Network Adapter 25 Installation And Maintenance Manual page 424

Number Plan Area (NPA)
The area code.
Off-Premises Station (OPS)
An arrangement provided by the local telephone company permitting
remote terminal equipment to operate as though it were directly
connected to the system. This tariffed service can be provided only
for FCC-registered single-line voice terminals.
Out-of-Building Station
Terminal equipment directly connected to the system, but not located
in the same building
arrangements are made to protect the system and its users from
lightning, power line crosses, etc. Only single-line and 7300H series
voice terminals may be so connected.
connected as Out-of-Building Stations.)
Paging Trunk
A telecommunications channel used to access a paging system.
Peripheral Equipment
Equipment connected to one of the RS-232C channels on the
CPU/Memory circuit pack. Examples are the System Administration
Terminal (SAT), SMDR Output device such as a Printer or a Call
Accounting System, Digital Tape Unit (DTU), and Customer Service
Unit (CSU).
Personal Dial Code (PDC)
Voice terminal extension number.
Each system user is assigned a PDC and is allowed to "log in" the
PDC at any voice terminal in the system. The PDC may be a 1-, 2-,
3-, or 4-digit number. There are two types of PDCs:
The PDCs assigned to voice terminals—One is associated
with each voice terminal in the system.
as the common equipment.
(MET sets cannot be
GLOSSARY
S p e c i a l
G-11