Specifications

Introduction
RADring
Installation & Operation Manual
1-4 General Description 8/11/98 12:03
Table 1-1 RADring Modules (Cont.)
Module
Type
Module Function Description
Ring In
Ring Out
RR-TIO Ring In/Ring Out Module for trunk
connection to adjacent hubs or access
units over STP or UTP
The TIO is a Token Ring In/Ring Out Module for
connection over shielded twisted pair (DB-9) or
unshielded twisted pair (RJ-45).
Converter RR-TFC Fiber-Optic Converter Module for trunk
connection to adjacent hubs or access
units over fiber optic cable
The TFC module provides fiber-optic interface for
Token Ring, with an option for 1 or 2 channels. The
TFC can be configured to work as Ring In or Ring Out
in the fiber-optic trunk or as a satellite port.
Repeater RR-TCR Copper Repeater Module for extended
range to adjacent hubs or access units
over STP or UTP. 4/16 Mbps switchable
with internal media filter
The TCR and TFR provide regeneration and
reclocking of the signal extending the distance
between two RADrings. RCT and TFR repeaters
operate in pairs: one at the RO (Ring Out) port of one
RADring, and the other at the RI (Ring In) port of the
second RADring.
RR-TFR Fiber-Optic Repeater Module for
extended range between adjacent hubs
over fiber optic cable
Jitter
Attenuator
RR-TJA The Jitter Attenuator and Lobe Distance
Extended reduces the cumulative jitter on
the ring, and ensures extended range on
passive access module lobes.
The TJA guarantees the following lobe distances
irrespective of the rest of the ring.
Elementary
Bridges/
Routers
RR-MBE-8D Ethernet bridge connecting a remote
Ethernet LAN of up to 80 workstations on
each link.
RR-MLB-T Connects a 250 station departmental ring
to the backbone ring
Provides network segmentation for higher
performance, security and manageability
10BaseT
Repeater
RR-EP-8T Eight 10BaseT ports repeater for RADring
hubs with Ethernet bus. Can be
connected to the hub’s bus as part of an
Ethernet segment.
The EP-8T repeater module connects Ethernet LANs
to the RADringII hub. It supports up to 8 UTP or
screend UTP ports.
10BaseT
Repeater
RR-EPR-8T Independent eight 10BaseT ports
repeater. Can be used with a RADring
hub without an Ethernet bus.
The EPR-8T repeater module connects Ethernet LANs
to the RADringII hub. It supports up to 8 UTP or
screend UTP ports.
10BaseT
Repeater
RR-EP-4T/AUI Four 10BaseT and one AUI ports repeater
for RADring hubs with Ethernet bus. Can
be connected to the hub’s bus as part of
an Ethernet segment
The EP-4T/AUI repeater module connects Ethernet
LANs to the RADringII hub. It supports up to 4 UTP
or screend UTP ports and one AUI (DTE) port.
10BaseT
Repeater
RR-EPR-4T/AUI Independent four 10BaseT and one AUI
ports repeater for RADring hubs. Can be
used with a RADring hub without an
Ethernet bus
The EPR-4T/AUI repeater module connects Ethernet
LANs to the RADringII hub. It supports up to 4 UTP
or screend UTP ports and one AUI (DTE) port.
10BaseT
Repeater
RR-EP-4T/FL Four 10BaseT and one/two 10BaseFL
ports repeater for RADring hubs with
Ethernet bus. Can be connected to the
hub’s bus as part of an Ethernet segment
The EP-4T/FL repeater module connects Ethernet
LANs to the RADringII hub. It supports up to 4 UTP
or screend UTP ports and one/two fiber-optic ports.
RATE TL-4/S TL-4/U
4 Mbps 300 m 200 m
16 Mbps 150 m 80 m