Enterasys Networks manual Rack Mounting the 2H252-25R, Strain-Relief Bracket Screws

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Installing the Device

Figure 3-2 Attaching the Strain-Relief Bracket

Strain-Relief

Bracket Screws

Strain-Relief

Bracket

 

 

 

 

 

 

 

 

 

 

 

 

 

 

COM

25R-2H252

 

 

 

 

 

 

 

 

 

 

 

 

 

CPU

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PWR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SPD-DPX

 

24X 22X

 

20X

18X

16X

14X

12X

10X

8X

6X

4X

2X

 

 

TX-RX

 

23

21

19

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15

13

11

9

7

 

5

3

1

 

MODE

 

 

 

LED

 

24

22

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12

10

8

 

6

4

2

SWITCH WORKGROUP ETHERNET FAST

 

 

 

 

 

 

 

 

 

 

 

 

 

4005_00_03

Rack Mounting the 2H252-25R

Proceed as follows to install the 2H252-25R into a 19-inch rack:

1.There are several mounting holes in the rackmount brackets and the bottom of the chassis so that each mounting bracket may be adjusted forward or backward to mount the device further into, or out of the rack, depending on the installation requirements. Position the rackmount brackets over the appropriate holes.

CAUTION: Do not attempt to attach the rackmount brackets with screws other than the 6-32 x 1/4-inch flathead screws shipped with the 2H252-25R. Use of longer screws may damage the unit.

2.Locate the four 6-32 x 1/4-inch flathead screws in the rackmount kit. Use these screws to attach the rackmount brackets to the bottom of the 2H252-25R as shown in Figure 3-3.

3-6Installation

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Contents 2H252-25R SmartSwitch Installation User’s Guide Page Page FCC Notice Industry Canada NoticeVcci Notice Class a ITE NoticeEnterasys NETWORKS, INC Program License Agreement Page Declaration of Conformity Page Contents Troubleshooting Figures Tables Structure of this Guide Using this GuideAbout This Guide Related Documents Document Conventions Guide uses the following conventionsPage Introduction OverviewConnectivity Runtime IP Address DiscoveryFull Duplex Switched Ethernet SmartTrunkRemote Monitoring Rmon Broadcast SuppressionPort/VLAN Redirect Functions Rate LimitingGarp Switch Operation Flow ControlSwitching Options 11 802.1 Port PriorityManagement Optional HSIMs and VHSIMsYear 2000 Compliant Lanview Diagnostic LEDsStandards Compatibility Getting Help Your email addressNetwork Requirements 10BASE-T Network100BASE-TX Network Installation Unpacking the DeviceInstalling Options Installing the Device Tabletop or Shelf Installation Guidelines for Tabletop and Shelf Installations 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 Physical Properties SpecificationsDevice Specifications INPUT/OUTPUT Ports Electrical SpecificationsEnvironmental Requirements 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