Specifications

Functional Description
RADring
Installation & Operation Manual
2-44 Ethernet Modules Functional Description 3/11/98 12:33
EP-4T/FL
The EP-4T/FL module contains four 10BaseT ports and one/two 10BaseFL
ports. It can only be connected to a RADring hub with an Ethernet bus. The
module is either connected to the hub’s Ethernet bus as part of an Ethernet
segment, or it works as an independent repeater in stand alone mode.
The EP-4T/FL can be connected to an additional RADringII Ethernet module
through a UTP port or via a fiber optic port in an Inter Repeater Link (IRL).
Such a connection requires one crossover cable.
The module performs an automatic partitioning and reconnection when a
port violates transmission protocols. LAN operation is not interrupted while
the module checks the affected port. Jabber lockup protection is used to
ensure that the LAN operation is not affected by the transmission of
excessively long packets. It also corrects reversed packet waveform polarity.
The EP-4T/FL occupies two slots and has four screened RJ-45 connectors and
two/four ST connectors. The UTP ports are connected by UTP and/or
screened UTP cables and the 10BaseFL ports are connected via 62.5/125µm
multimode fiber. Up to 10 modules can be installed in a single hub.
EP-4FL
The EP-4FL module contains four 10BaseFL ports. It can only be connected
to a RADring hub with an Ethernet bus. It is either connected to the hub’s
Ethernet bus as part of an Ethernet segment, or it works as an independent
repeater in stand alone mode.
The module can be connected to an additional RADringII Ethernet module
in an Inter Repeater Link (IRL). Such a connection requires one crossover
cable.
The module performs an automatic partitioning and reconnection when a
port violates transmission protocols. LAN operation is not interrupted while
the module checks the affected port. Jabber lockup protection is used to
ensure that the LAN operation is not affected by the transmission of
excessively long packets.
The EP-4FL occupies two slots and has eight ST connectors. The module is
connected via 62.5/125µm multimode fiber. Up to 10 modules can be
installed in a single hub allowing connection of up to 40 10BaseFL links.