Installation Guide

Table Of Contents
PMP 450i and PTP 450i Configuration and User Guid
: Glossary
Term
Definition
SYN/1 Second-from-right LED in the module. In the Access Point Module
or in a registered Subscriber, this LED is continuously lit to
indicate the presence of sync. In the operating mode for a
Subscriber Module, this LED flashes on and to indicate that the
module is not registered.
Sync GPS (Global Positioning System) absolute time, which is passed
from one module to another. Sync enables timing that prevents
modules from transmitting or receiving interference. Sync also
provides correlative time stamps for troubleshooting efforts.
TCP Alternatively known as Transmission Control Protocol or Transport
Control Protocol. The Transport Layer in the TCP/IP protocol stack.
This protocol is applied to assure that data packets arrive at the
target network element and to control the flow of data through the
Internet. Defined in RFC 793. See
http://www.faqs.org/rfcs/rfc793.html
.
TDD Time Division Duplexing. Synchronized data transmission with
some time slots allocated to devices transmitting on the uplink and
some to the device transmitting on the downlink.
telnet Utility that allows a client computer to update a server. A firewall
can prevent the use of the telnet utility to breach the security of
the server. See http://www.faqs.org/rfcs/rfc818.html
,
http://www.faqs.org/rfcs/rfc854.html and
http://www.faqs.org/rfcs/rfc855.html.
Textual
Conventions MIB
Management Information Base file that defines system-specific
textual conventions. See also Management Information Base.
Tokens Theoretical amounts of data. See also Buckets.
TOS 8-bit field in that prioritizes data in a IP transmission. See
http://www.faqs.org/rfcs/rfc1349.html
.
TTG Transmit/receive Transition Gap. A gap between the downlink burst
and the subsequent uplink burst in a TDD transceiver. During TTG,
AP/BHM switches from transmit to receive mode and SMs/BHS
switch from receive to transmit mode.
TxUnderrun
Field
This field displays how many transmission-underrun errors
occurred on the Ethernet controller.
UDP User Datagram Protocol. A set of Network, Transport, and Session
Layer protocols that RFC 768 defines. These protocols include
checksum and address information but does not retransmit data or
process any errors. See http://www.faqs.org/rfcs/rfc768.html
.
udp User-defined type of port.
pmp-0957 (April 2015) 225