EMS eNfusion 1252-A-4100-01 System Description, Installation And Maintenance Manual page 22

SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL
eNfusion™ HSD-X and HSD-Xi High-speed Data Terminal
LAN Local Area Network
LES Land Earth Station
LRU Line Replaceable Unit
Mbps Megabit per second
MCDU Multipurpose Control Display Unit
MCU Modular Concept Unit
MES Mobile Earth Station
MPDS Mobile Packet Data Services
MPU Maintenance Port Utility
ms Millisecond
MSN Mobile Serial Number
MSN Multiple Subscriber Number
O&I Outline and Installation Diagram
OA Other Antenna
ORR Ocean Region Registration
ORT Owner Requirements Table
PN Part Number
POR Pacific Ocean Region
POTS Plain Old Telephone System
PPP Point-to-Point Protocol
PPPoE Point-to-Point Protocol over Ethernet
RAM Random Access Memory
RF Radio Frequency
RFU Radio Frequency Unit
ROM Read-only Memory
RTN Return
Rx Receive
SBB SwiftBroadband
SCPC Single Channel per Carrier
SDI Source/Destination Identification
STU Secure Telephone Unit
Tx Transmit
USIM Universal Subscriber Identity Module
VHF very high frequency
WOW Weight on Wheels
23-15-30
INTRO-4
8 MAY 09