Zhone Technologies IMACS-200 manual Nebe, Nms, Nni, Nos, Nrz, Ntu, Oof, Oos

T1 companding standard used in the conversion between analog and digital signals in PCM systems.

NEBE

Near End Block Error. Shows transmission errors detected by the near end equipment

Network port

A CPU port, Resource port, or WAN port used in this system.

NMS

Network management system, a computer used to control networks from a single location.

NNI

Network Node Interface

NOS

No-Signal Alarm

NRZ

Non-Return-to-Zero signal format

NT

Network Termination

NTU

Network Termination Unit, connects BRI station equipment to the integrated access system. Any standard 2B1Q (U interface) device that supports "nailed-up" (one or two B-channels) connections with no D-channel signaling.

OCU–DP port

Office Channel Unit - Dataport (one of the data ports for this system).

OOF

Out Of Frame, an indication that the system is searching for the framing bit pattern in the signal received from the network.

OOS

-14 Glossary