Glossary; A P P E N D I X - Comtech EF Data Vipersat CDM-570 User Manual

G
LOSSARY
ALC
Automatic Limit Control
stabilization of the HPA's RF output power.
APL Asynchronous Party Line – A VIPERSAT term for RS-485 multi-drop bus used
for control of indoor equipment. See also SPL.
ARP
Address Resolution Protocol – A protocol for a LAN device to determine the
MAC address of a locally connected device given its IP address. See also MAC.
ASR Automatic Switch Request is a switch request message used in legacy VMS
installations
ATM Asynchronous Transfer Mode (ATM)
BER Bit Error Rate (sometimes Ratio) – A measure of the number of data bits
received incorrectly compared to the total number of bits transmitted.
BUC
Block Up Converter
Bps Bits Per Second – A measure of transmission speed. See also kb/s &
Mb/s

A p p e n d i x

G l o s s a r y
E -
A
is a closed loop mechanism controlling the gain
B
A
P P E N D I X
E-1