Abbreviations and Acronyms

R (Continued)

RMT LB

Remote Loopback

RNG

Ringback Detection

RO

Receive Only

ROM

Read Only Memory

RT

Remote Terminal

RTS, RS

Request to Send

RX

Receive

S

S or S/T

Reference Designator

SCC

Serial (or Satellite) Communications Controller

SD

Send Data

SDLC

Synchronous Data Link Control (IBM)

SGND, SG

Signal Ground

SH

Switch Hook

SIM SW CR

Simulated Switched Carrier

SNR

Signal / Noise Ratio

SPID

Service Profile Identifier

SQD

Signal Quality Detector

SQM

Signal Quality Monitor

SS

Systems Status

STX

Start of Text

SYN

Synchronization Character

T

T

Reference Designator

TA

Terminal Adapter

TC

Transmit Clock

TD

Transmit Data

TE

Terminal Equipment

TEI

Terminal Endpoint Identifier

TELCO

Telephone Company

G-8

UTA220/UTA220k

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Image 174
Northern UTA220/UTA220k manual Rmt Lb