B-1
Cisco Nexus 2000 Series Hardware Installation Guide
APPENDIX
B

Technical Specifications

This appendix describes the technical specifications for the Cisco Nexus Fabric Extenders (FEXs) and
includes the following sections:
Power Specifications, pageB-1
Environmental Specifications, page B-6
Physical Specifications, pageB-6
Transceiver Specifications, pageB-7
Airflow Optimization Accessories, pageB-9
Note Specifications for cables and connectors are provided in AppendixC, “C able and Port Specifications.”

Power Specifications

This section describes the power specifications for the Cisco Nexus Fabric Extenders.
The power supplies connect directly to the system through connectors attached to the baseboard through
cables. One connector is on the baseboard for each power supply. AC input is through an IEC connector
mounted on the power supply port side exhaust panel. Table B- 1 lists the specifications for the FEX
power supplies.