AT&T OneVision DEFINITY G3 Guide Installation And Connection Manual page 278

Glossary
following components are connected: port, tone-clock, maintenance,
service, and (optionally) expansion interface circuit packs. Every port
network in a PBX is controlled by the PBX processing element in the
processor port network (PPN).
pooled Shared "conversion resources" (modems and data modules) that provide
modems cost-effective access to analog facilities by data terminals. When
necessary, modem pooling inserts a conversion resource into the path of
a data call. Modem pooling serves both outgoing and incoming calls.
port A data- or voice-transmission access point on a device that is used for
communicating with other devices.
port network See PN .
See PBX .
private
branch
exchange
private A network used exclusively for the telecommunications needs of a
network particular customer.
See PDM .
processor
data module
proxy The mechanism in which one system emulates another system in
responding to protocol requests. Proxy systems are used in network
management to avoid having to implement full protocol stacks in devices
like modems.
Proxy Agent Software that converts management information from a DEFINITY G3 PBX
into a format that your network management system can understand.
proxy string The second element of the community name. For the Proxy Agent, this
string is always "g3mgt."
public The network that can be openly accessed by all customers for local or
network long-distance calling.
Issue 2 April 1996 GL-7