Cisco Systems XR 12410 manual 100BASE-TX

Chapter 2 Preparing for Installation

PRP Port Connection Guidelines

Table 2-5lists the cabling specifications for 100-Mbps transmission over unshielded twisted-pair (UTP) cables.

Note The transmission speed of the Ethernet ports is autosensing by default and is user-configurable.

Table 2-5	Specifications and Connection Limits for 100-Mbps
	Transmission
Parameter		RJ-45
Cable specification		Category 51 UTP, 22 to 24 AWG2
Cable length (max)		—
Segment length (max)		328 feet (100 m) for 100BASE-TX
Network length (max)		656 feet (200 m)3 with 1 repeater

1.EIA/TIA-568 or EIA-TIA-568 TSB-36 compliant. Not supplied by Cisco.

2.AWG = American Wire Gauge. This gauge is specified by the EIA/TIA-568 standard.

3.Specifically the length between any two stations on a repeated segment.

Table 2-6lists IEEE 802.3u physical characteristics for 100BASE-TX.

Table 2-6	IEEE 802.3u Physical Characteristics
Parameter		100BASE-TX
Data rate (Mbps)		100
Signaling method		Baseband
Maximum segment length		100 m between DTE and repeaters
Media		Category 5 UTP
Topology		Star/Hub

	Cisco XR 12410 Router Installation Guide
2-30	OL-13832-01