Cisco Systems N3KC3524P10G manual Fan Tray for the Cisco Nexus 3016 Switch

Chapter 1 Overview of the Cisco Nexus 3000 Series Switches

Cisco Nexus 3016 Switch

Se n d d o c u m e n t c o m m e n t s t o n ex u s 3 k - d o c f e e d b a ck @ c i sc o . c o m

Fan Tray for the Cisco Nexus 3016 Switch

The Cisco Nexus 3016 switch ships with one fan tray, which is the same fan tray used by the Cisco Nexus 3064 switch (part number N3K-C3064-FAN for forward airflow or N3K-C3064-FAN-B for reverse airflow). You can hot swap the fan tray during operations but must replace it within two minutes or the switch can reach an overtemperature condition and shut down.

Caution You can order a replacement fan tray with forward airflow or reverse airflow. Be sure to order the same direction of airflow as is used with the switch. If there is a black stripe across the front of the fan trays and power supplies, the switch is running reverse airflow and you must order a fan tray with reverse airflow. If there is no black stripe across the front of these modules, the switch has forward airflow and you must order replacement modules with forward airflow.

Caution The switch must run with all of its power supply and fan tray modules taking in air from a cold aisle and exhausting air to the hot aisle. If they take in air from a hot aisle, an overtemperature condition can occur and the switch will shut down. If the airflow directions are mixed in the same switch, you will see an error.

Port Connections for the Cisco Nexus 3016 Switch

You use QSFP+ transceivers with the 16 networking ports used for uplinking and downlinking. For low-cost connections to switches in the same or adjacent racks, use QSFP+ transceivers with copper cables. For long distance connections, use the QSFP transceivers connected to optical cables.

Table 1-3describes the QSFP+ transceivers and cable connections that you can use with the 16 ports used for uplinks and downlinks.

Table 1-3	QSFP+ Transceivers and Cables Used with the Cisco Nexus 3016 Switch Uplink and
	Downlink Ports
Part Number		Transceivers and Cables
QSFP-40G-SR4		40-Gigabit SR4 QSFP transceiver on both ends of an optical cable. Used for
		distances up to 100 meters.
QSFP-H40G-CU1M		40-Gigabit transceiver with a 1-meter passive copper cable
QSFP-H40G-CU3M		40-Gigabit transceiver with a 3-meter passive copper cable
QSFP-H40G-CU5M		40-Gigabit transceiver with a 5-meter passive copper cable
QSFP-4SFP10G-CU1M		40-Gigabit transceiver connected to four 1-meter passive copper cables, each
		connected to an SFP+ transceiver
QSFP-4SFP10G-CU3M		40-Gigabit transceiver connected to four 3-meter passive copper cables, each
		connected to an SFP+ transceiver
QSFP-4SFP10G-CU5M		40-Gigabit transceiver connected to four 5-meter passive copper cables, each
		connected to an SFP+ transceiver

Cisco Nexus 3000 Series Hardware Installation Guide

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