61200590E1-34B Copyright © 2013 ADTRAN, Inc. 151. INTRODUCTIONThis hardware installation guide describes the NetVanta 1224STR DC unit’s physical characteristics, listsits features and specifications, introduces basic functionality, and provides installation instructions.For information on switch configuration for a specific application, refer to the configuration guides provided onthe ADTRAN Support Community. For details on the command line interface (CLI), refer to the AOSCommand Reference Guide. All other related documents are also available online athttp://supportforums.adtran.com.2. PHYSICAL DESCRIPTIONThe NetVanta 1224STR DC is a managed switch housed in a 1U-high rack-mountable metal enclosure thatincludes a DC power supply. The front panel contains 24 10/100Base-T Ethernet interfaces (RJ-45), one GigabitEthernet interface that provides one fixed RJ-45 connector, and one standard small form-factor pluggable (SFP)slot for fiber connectivity.This section includes a list of features and specifications, a list of shipping contents, and a description of theunit’s front and rear panel designs. For additional information, refer to the following sections:• Mounting Options on page 36• Supplying Power to the Unit on page 38• Installing Dial Backup and Network Interface Modules on page 39• Installing the NetVanta VPN Accelerator Card (included in P/N 4200368L1) on page 41Features and Specifications• Physical Interfaces• 24 10/100Base-T Ethernet interfaces on the front panel• One 1000Base-T Gigabit Ethernet interfaces on the front panel (SFP slots for fiberconnectivity/RJ-45 connectors for copper connectivity)• Integrated DB-9, EIA-232 console port (DCE) on the rear panel• Modular network interface on the rear panel• Stacking• Spanning Tree Support (802.1D and 802.1w)• Link Aggregation (802.3ad)• VLAN Support (802.1Q), up to 255 active VLANs• Priority QoS (802.1p)• Management• Console• Telnet CLI• SSH CLI• SNMP V2• Port mirroring• DC Power: 24 to 48 VDC• Mechanical Specifications• Housing: 1U-high metal enclosure (1.72-inch H x 17.22-inch W x 7.8-inch D)