User guide

Glossary Canopy System User Guide
616
pmp-0229 (Mar 2013)
SYN/1
Second-from-right LED in the module. In the Access Point Module or
Backhaul timing master, as in a registered Subscriber Module or
Backhaul timing slave, this LED is continuously lit to indicate the
presence of sync. In the operating mode for a Subscriber Module or
Backhaul timing slave, this LED flashes on and to indicate that the
module is not registered. In the aiming mode for a Subscriber Module
or a Backhaul timing slave, this LED is part of a bar graph that
indicates the quality of the RF link.
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
.
tcp
Transport Control type of port. The system uses Port 3306:tcp for
MySQL
®
database communications, Port 9080:tcp for SSE telnet
communications, and Port 9090:tcp for Engine telnet
communications.
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.
Time of Last
Transaction
A field in the data that the cmd show esn command generates from
data in the SQL database in the Bandwidth and Authentication
Manager (BAM) server. This field identifies the time of day of the most
recent authentication attempt by the SM. Expressed in the database
output as TLT.
TLT
Time of last transaction. A field in the data that the cmd show esn
command generates from data in the SQL database in the Bandwidth
and Authentication Manager (BAM) server. This field identifies the time
of day of the most recent authentication attempt by the SM.