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TDRMIM Operating Specifications
2.5.2
Media Filters
When connecting Token Ring stations that are not equipped with a Type 3
Media Filter to the TDRMIM-22A (UTP), install a Type 3 Media Filter
(such as the Cabletron Systems TRMF or TRMF-2) in line with the lobe
cable at the Token Ring station connection.
2.5.3
Connector Types
TCUs for Twisted Pair Cabling
The TDRMIM's lobe ports are internally crossed-over to provide
connection of straight-through station lobe cabling. Figure 2-3 shows the
pinouts required for RJ45 lobe connections.
Each RJ45 connector is encased in a metallic shield that provides a means
of connection for the STP cable shield. When STP patch cabling is used,
contacts within the female RJ45 maintain shield continuity by contacting
the metallic casing of the male RJ45 on the STP lobe cable.
Shielded patch cables that adapt a shielded RJ45 to a Data Connector
(MIC) are available from Cabletron Systems in eight-foot lengths. These
adapter/patch cables permit connection to an existing patch panel
equipped with MIC connectors. (See Figure 2-4)
Page 2-10
TRANSMIT +
RECEIVE -
RECEIVE +
TRANSMIT -
Figure 2-3. Lobe Port Pinouts.
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