User Guide

PMP 450 Planning Guide Glossary
Term Definition
Latency Tolerance Acceptable tolerance for delay in the transfer of data to and from a module.
Line of Sight Wireless path (not simply visual path) direct from module to module. The path that
results provides both ideal aim and an ideal Fresnel zone.
LNK/5 Furthest left LED in the module. In the operating mode, this LED is continuously
lit when the Ethernet link is present. In the aiming mode for a Subscriber Module,
this LED is part of a bar graph that indicates the quality of the RF link.
Logical Unit ID Final octet of the 4-octet IP address of the module.
LOS Line of sight. The wireless path (not simply visual path) direct from module to
module. The path that results provides both ideal aim and an ideal Fresnel zone.
LUID Logical Unit ID. The final octet of the 4-octet IP address of the module.
MAC Address Media Access Control address. The hardware address that the factory assigns to the
module for identification in the Data Link layer interface of the Open Systems
Interconnection system. This address serves as an electronic serial number.
Management
Information Base
Space that allows a program (agent) in the network to relay information to a
network monitor about the status of defined variables (objects).
Maximum
Information Rate
(MIR)
The cap applied to the bandwidth of an SM or specified group of SMs. In the
Cambium implementation, this is controlled by the Sustained Uplink Data Rate,
Uplink Burst Allocation, Sustained Downlink Data Rate, and Downlink Burst
Allocation parameters.
Media Access
Control Address
Hardware address that the factory assigns to the module for identification in the
Data Link layer interface of the Open Systems Interconnection system. This
address serves as an electronic serial number.
MIB Management Information Base. Space that allows a program (agent) in the network
to relay information to a network monitor about the status of defined variables
(objects).
MIR See Maximum Information Rate.
NAT Network Address Translation defined in RFC 1631. A scheme that isolates
Subscriber Modules from the Internet. See http://www.faqs.org/rfcs/rfc1631.html
.
NEC National Electrical Code. The set of national wiring standards that are enforced in
the U.S.A.
NetBIOS Protocol defined in RFC 1001 and RFC 1002 to support an applications
programming interface in TCP/IP. This interface allows a computer to transmit and
receive data with another host computer on the network. RFC 1001 defines the
concepts and methods. RFC 1002 defines the detailed specifications. See
http://www.faqs.org/rfcs/rfc1001.html and http://www.faqs.org/rfcs/rfc1002.html.
pmp-0047 (March 2014)
VII