Transmit Clock Synchronization; Ethernet Wireline Interface - Futurecom PDR8000 Manual

When a PDR8000 receives an infrastructure message on the V.24 wireline interface, it
processes the message if the message's TEI is set to the "Broadcast" value or to the TEI/Site
configured into the PDR8000. If a message is received by PDR8000 that is directed to any
other TEI, the message is ignored.
Subsite/TEI addressing has many different uses, and is most commonly utilized in voting
systems (where this value is used as a Subsite identifier) and data systems. PDR8000 applies
TEI addressing techniques to filter all incoming AIS messages received on the V.24 wireline
interface.
When a PDR8000 sends an infrastructure message on the V.24 wireline interface, it always
inserts the TEI/Site value that is configured into the PDR8000.
6.4.1.2 V.24 T
RANSMIT
The V.24 wireline interface on PDR8000 is a synchronous interface. One end of the connection
provides a clock signal that is used to allow the link to remain operable.
In some scenarios a PDR8000 is configured to use an internally generated clock. This is
typically done when the PDR8000 is connected to a local device (e.g. DIU or comparator).
However, other situations exist requiring the PDR8000 to sync up to the clock of the other
connected device. This is the typical configuration when connected to a remote device (e.g.
microwave link).
In some cases, such as the RT/RT configuration where PDR8000s are connected back-to-back
(see 3.2), one station is configured to use its internal clock, and the other is configured to use an
external clock, that of the other connected station.
6.4.2 E
THERNET
The PDR8000 provides Ethernet interface option which utilizes Digital Fixed Station Interface
(DFSI) to connect the PDR8000 to the Morotola ASTRO Systems and other devices and
systems which support the DFSI as per the standard defined in TIA Standard TIA-102.BAHA-A
titled "Project 25 Fixed Station Interface Messages and Procedures" published in June 2017.
This interface allows users to rapidly deploy PDR8000s as portable or fixed stations on an IP
based network and connect to a Conventional Fixed Station Host (CSFH). These types of
deployments are ideal for:
• Natural Disasters – Hurricanes, Tornadoes, Earthquakes, Floods
• Dignitary Protection – Diplomatic Security, Heads of State, Military Leadership
• Special Events – Political Conventions, Sporting Events, Parades
• In-Building Coverage – Hotels, Arenas, Convention Centers
• Interoperability – Federal, State & Local Agencies
•
Rapid Deployment - Military bases, Border control, National Guards, Incident
Management
2021-11-15
C S
LOCK YNCHRONIZATION
W I
IRELINE NTERFACE
PDR8000® Portable Digital Repeater Product Planner
Document 8K088X02 R5.0
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