Viavi MSAM Manual page 65

Glossary
H
Histogram — Print output of specific results in a bar graph format.
I
I — Clear to send from DCE circuit (X.21).
IC — Ring indicator from DCE (RS-449/ V.36, MIL-188-114).
Inv — Inversion or inverted. Appears on user interface.
IITU — International Telecommunications Union based in Geneva, Switzerland.
L
LCD — Liquid crystal display.
LED — Light emitting diode.
LL — Local loopback to DCE circuit (all supported interfaces except X.21).
M
Manchester encoding — A digital line-coding technique in which a transition is guar-
anteed in the middle of each bit period, which assists the receiver in retaining synchro-
nization. Also referred to as Diphase encoding.
MIL-188c — Specification describing a data communications interface that uses a 25
pin connector, and unbalanced amplifiers for all circuits.
MIL-188-114 — Specification describing a data communications interface that uses
DB-25 connector or DB-37 connectors and unbalanced amplifiers for all circuits.
MIL-188-202 — Specification describing inter operability and performance standards
for tactical digital transmission groups using coaxial cable.
Min — Minutes. Appears on the user interface.
Msg — Message.
O
OCONUS — Outside the Continental United States. Acronym used to identify stan-
dards for international circuits outside of the continental United States.
R
R — Receive data from DCE circuit (X.21).
Data Communications and Diphase Testing Manual
January 2016 21148872, Rev. 002 Page 49