Enterasys Networks 2H252-25R manual Guidelines for the Rackmount Installation

Page 30

Installing the Device

Figure 3-1 Tabletop or Shelf Installation

B

C

	FAST ETHERNET WORKGROUP SWITCH
			LED
			MODE
A			RX-TX
			DPX-SPD
			PWR
	2H252-25R	RESET	CPU
			COM

A = 15 cm (6 in)

B = 57 cm (22.5 in) C = 53 cm (21 in) D = 213 cm (7 ft)

2	4	6	8	10	12	14	16	18	20	22	24
1	3	5	7	9	11	13	15	17	19	21	23
2X	4X	6X	8X	10X	12X	14X	16X	18X	20X	22X	24X

D

4005_00_02

3.3.2Rackmount Installation

To install the 2H252-25R in a 19-inch rack, Enterasys Networks includes a strain-relief bracket for cable management and an accessory kit containing the rackmount brackets, and mounting screws to attach the rackmount brackets and strain-relief bracket.

Guidelines for the Rackmount Installation

The installation site must be within reach of the network cabling and meet the requirements listed below:

•An appropriate grounded power receptacle must be located within seven feet of the location.

•Maintain a temperature of between 5°C (41°F) and 40°C (104°F) at the installation site with fluctuations of less than 10°C (18°F) per hour.

3-4Installation

Image 30

Contents 2H252-25R SmartSwitch Installation User’s Guide Page Page Vcci Notice FCC NoticeIndustry Canada Notice Class a ITE NoticeEnterasys NETWORKS, INC Program License Agreement Page Declaration of Conformity Page Contents Troubleshooting Figures Tables Using this Guide About This GuideStructure of this Guide Related Documents Document Conventions Guide uses the following conventionsPage Introduction OverviewConnectivity Runtime IP Address DiscoveryFull Duplex Switched Ethernet SmartTrunkPort/VLAN Redirect Functions Remote Monitoring RmonBroadcast Suppression Rate LimitingGarp Switch Operation Flow ControlManagement Switching Options11 802.1 Port Priority Optional HSIMs and VHSIMsLanview Diagnostic LEDs Standards CompatibilityYear 2000 Compliant Getting Help Your email addressNetwork Requirements 10BASE-T Network100BASE-TX Network Installation Unpacking the DeviceInstalling Options Guidelines for Tabletop and Shelf Installations Installing the DeviceTabletop or Shelf Installation InstallationRackmount Installation Guidelines for the Rackmount InstallationAttaching the Strain-Relief Bracket Rack Mounting the 2H252-25R Strain-Relief Bracket ScrewsRackmount Bracket Screws Connecting Power Redundant Primary AC outlets are On separate circuitsConnecting to the Network Connecting Twisted Pair Cables to Fixed PortsConnecting the Twisted Pair Segment Straight-Through Cable Completing the Installation Troubleshooting Using LanviewLanview LEDs PWR CPU FDX Troubleshooting Checklist Local Management User’s Guide2E253, 2H252, 2H253 SmartSwitch Series 2E253 Using the Reset Button Reset ButtonPage Specifications Device SpecificationsPhysical Properties Electrical Specifications Environmental RequirementsINPUT/OUTPUT Ports COM Port Pinout Assignments Regulatory CompliancePage Optional Installations Mode Switch Bank Settings Required ToolsRemoving the Chassis Cover Optional Installations and Mode Switch Bank Settings B-3 Screws Chassis Cover Front Panel Setting the Mode Switches Figure B-2 Mode Switch Location6Optional Installations and Mode Switch Bank Settings Simm Upgrade Locating SIMMsInstalling the Dram Simm Installing Optional Hsim or Vhsim Interface Modules Figure B-5 Hsim and Vhsim Connector LocationsPage Index NumericsIndex-2