Cabletron Systems TRXI-24, TRXI-22 Maximum Lobe Lengths, UTP Cable Type Maximum Lobe Length Mbps

REQUIREMENTS/SPECIFICATIONS

Maximum Lobe Lengths

The lobe length is the physical length of the cable connecting a station to its TCU port at the TRXI. Table 2-2 shows the maximum lobe length, according to ring speed. The cable lengths listed in Table 2-2 are total lengths made up of UTP cable only.

Table 2-2. UTP Maximum Lobe Lengths

UTP Cable Type	Maximum Lobe Length
	4 Mbps	16 Mbps
Category 3	100 meters	60 meters
	(330 feet)	(198 feet)
Category 4	100 meters	60 meters
	(330 feet)	(198 feet)
Category 5	130 meters	85 meters
	(429 feet)	(280.5 feet)

Type 3 Media Filters

To connect a UTP lobe segment from a TRXI-22 or TRXI-24 to a station supporting STP cabling, you need a Type 3 Media Filter. Cabletron Systems offers the following Type 3 Media Filters:

•TRMF, RJ45 (UTP) connector to 10-inch DB9 (STP) cable with

LANVIEW

•TRMF-2, RJ45 (UTP) connector to DB9 (STP) connector

Maximum Number of Stations

When you use UTP lobe cabling anywhere on the ring, the number of stations is limited to 100 stations at ring speeds of either

4 or 16 Mbps.

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