User`s manual

Am186™CC Microcontroller Router Reference Design User’s Manual
E-2
Ethernet - A type of network capable of high-speed digital data communication.
Typical speeds range from 10-Mbit/s to 100-Mbit/s.
FCC - Federal Communications Commission. Regulates the U.S. telephone
industry.
GCI - General Circuit Interface.
HDLC - High-Level Data-Link Controller. ISO standard for layer-2 data bit-
oriented communications protocol. HDLC is used for LAPB, LAPD, V.120 and
SS7.
IDC - ISDN Data Controller. Performs D channel processing on the S/T reference
point data.
IOM-2 - Industry standard serial bus developed by Siemens.
ISDN - Integrated Services Digital Network.
ISO - International Standardization Organization. Developed the OSI reference
model and HDLC standards.
LAPB - Link Access Procedure Balanced. The X.25 data link layer protocol. X.25
is a special case of HDLC.
LAPD - Link Access Procedures on the D channel. ISDN data link layer protocol
defined by CCITT. LAPD is a special case of HDLC
LE - Local Exchange. Class 5 C.O.
MPI - Microprocessor Interface.
NT1 - Network Termination Type 1. Termination device located on the customer
premises that converts the two wire U-interface to a four wire S/T-interface.
NT2 - Network Termination Type 2. Termination device separating the S and T
reference points used for customer-controlled communication distribution (such
as PBX or LAN)
OSI - Open Systems Interconnection reference model. Seven layer architecture
developed by ISO for open system communications.
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