Cisco Systems IE301024TC manual Connecting to the 10/100 PoE Ports, Device Crossover Cable

Chapter 2 Switch Installation

Connecting Devices to the Ethernet Ports

Table 2-1	Ethernet Cables (Auto-MDIX Disabled)
Device		Crossover Cable1	Straight-Through Cable1
Switch to switch		Yes	No
Switch to hub		Yes	No
Switch to computer or server		No	Yes
Switch to router		No	Yes
Switch to IP phone		No	Yes

1.100BASE-TX and 1000BASE-T traffic requires twisted four-pair, Category 5, Category 5e, or Category 6 cable. 10BASE-T traffic uses Category 3 or Category 4 cable.

Connecting to the 10/100 PoE Ports

The Cisco IE-3010-16S-8PC switch 10/100 PoE ports have the same autonegotiation settings and cabling requirements as those in the “Connecting to the 10/100 and 10/100/1000 Ports” section on page 2-25. These ports provide PoE power.

See the “PoE Ports” section on page 1-3for information on the cables and connectors.

The ports provide PoE support for devices compliant with IEEE 802.3af and also provide Cisco prestandard PoE support for Cisco IP Phones and Cisco Aironet Access Points.

On a per-port basis, you can control whether or not a port automatically provides power to a connected IP phone or an access point.

To access an advanced PoE planning tool, use the Cisco Power Calculator on Cisco.com:

http://tools.cisco.com/cpc/launch.jsp

You can use this application to calculate the power supply requirements for a specific PoE configuration. The results show output current, output power, and heat dissipation.

Warning Voltages that present a shock hazard may exist on Power over Ethernet (PoE) circuits if interconnections are made using uninsulated exposed metal contacts, conductors, or terminals. Avoid using such interconnection methods, unless the exposed metal parts are located within a restricted access location and users and service people who are authorized within the restricted access location are made aware of the hazard. A restricted access area can be accessed only through the use of a special tool, lock and key or other means of security. Statement 1072

Caution Category 5e and Category 6 cables can store high levels of static electricity. Always ground the cables to a suitable and safe earth ground before connecting them to the switch or other devices.

Cisco IE 3010 Switch Hardware Installation Guide

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