Passive Media Module (6220M-Tp) - 3Com CoreBuilder 5000 User Manual

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NTRODUCTION
Passive Media
Module (6220M-TP)
The CoreBuilder 5000 Token Ring Passive Media Module is a single-slot
module that provides 20 lobe ports per module, or up to 320 users per
hub, with as many as 250 users on the same network ring.
The module has the following features:
Delivers a high-density passive media solution for connecting devices
to Token Ring networks.
Provides connections using shielded or unshielded twisted-pair
cabling (using RJ-45 connectors) on any individual module. You
cannot, however, mix both wiring types on the same module.
Supports a variety of twisted pair cabling, UTP categories 4 or 5.
Supports either 4 or 16 Mbps Token Ring networks on a per-module
basis.
Supports fan-out devices so that you can perform address to port
mapping of up to eight end stations per port.
Can be switched on a per-module basis to any of ten
CoreBuilder 5000 backplane rings or to the one isolated ring.
Accepts a Token Ring Network Monitor Card (TR-NMC).
Has built-in jitter-attenuation circuitry for module level retiming.
Automatic ring speed detection.
Address-to-port mapping, including multi-station ports (fan outs)
and MAC-less stations.
Module-level, hardware-based beacon recovery.