Cabletron Systems SEHI-22, SEHI-32, SEHI-24, SEHI-34 guide

CONNECTING TO THE NETWORK

4.1.2Connecting to Network Ports, SEHI-32 and SEHI-34

The SEHI-32 has a 50-pin Champ connector, while the SEHI-34 has two 50-pin Champ connectors. This conﬁguration of the SEHI allows you to run a 50-pin feeder cable from the SEHI to a punch down block. Each Champ connector supports 12 10BASE-T, twisted pair segments.

Note: Refer to Appendix A for information about wiring the SEHI to a punch down block.

To connect the SEHI into an existing twisted pair wiring system:

1.Connect a 50-pin feeder cable to the Champ connector on the SEHI as shown in Figure 4-2.

24X

	-2
	EPIM
	LNK
	-T
	EPIM
13X
	LNK
	-T
	EPIM
1X	-1
	EPIM

12X

Figure 4-2. SEHI-32/34 Network Ports

2.Attach the feeder cable to the punch down block, or patch panel.

In most cases, you can connect the feeder cable directly to a Champ connector located on the punch down block. If not, you must wire the feeder cable to the punch down block using the punch down information in Appendix A.

3.At the device end of a segment, attach the segment to a 10BASE-T compliant Ethernet device.

Page 4-3

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Cabletron Systems SEHI-22, SEHI-24 manual Connecting to Network Ports, SEHI-32 and SEHI-34

Contents

10BASE-T Intelligent Stackable HUB USER’S Guide Printed On Recycled Paper FCC Notice DOC Notice Cabletron SYSTEMS, INC Program License Agreement Cabletron Software Program License Exclusion of Warranty Disclaimer of Liability United States Government Restricted Rights Table of Contents Installation Connecting to the NetworkTroubleshooting Local Management Contents Appendix B Twisted Pair Wiring Tables A-1 Using this Manual Chapter Introduction Introduction Getting Help Sehi Overview Sehi Features Repeater FunctionalityPolarity Detection and Correction Flash EEPROMs Reset Button Lanview LEDsLocal Management Stackable Capabilities Introduction Optional Features Epim Related Manuals Daughter Board Upgrade KitRack Mount or Wall Mount Hardware Cable Specifications HubSTACK Interconnect Cable Requirements Length Insertion LossImpedance Jitter Delay TemperatureCrosstalk Noise Fiber Optic Budget and Propagation Delay Cable Type Attenuation Maximum Cable Length Installation REQUIREMENTS/SPECIFICATIONS Connectors Thin-Net Network Requirements for the EPIM-C ModuleCable Type Terminators AUI Cable Network Port SpecificationsAUI Cable Requirements for the EPIM-A and EPIM-X Modules SEHI-22 and SEHI-24 Network Port Speciﬁcations SEHI-32 and SEHI-34 Network Port Speciﬁcations Pin Champ Connector Installation REQUIREMENTS/SPECIFICATIONS Epim Specifications EPIM-T EPIM-F1 and EPIM-F2 Parameter Typical Worst Worst Case Typical Value Budget EPIM-F3 EPIM-F3 Parameter Typical Minimum Maximum Connector Type EPIM-C EPIM-A and EPIM-X AUI Port EPIM-A and EPIM-X COM Transceiver Requirements Delay Times Start of Packets Delay Times JAMGeneral Preamble Fault Protection Power Supply RequirementsOutput Min. Load Max. Load Max Power JAM Output Safety Physical Installing the Sehi Unpacking the Sehi Stacking the Sehi Stacking the Sehi Attaching the Strain Relief Bracket Disconnect SEH and Sehi Interconnect Cables At the OUT Port Installing the Sehi in the Rack Rack Mounting the Sehi Wall Mounting the Sehi Free-Standing Installation Shelf or Table-top Installation Installation Connecting the Sehi to the Power Source Connecting the Sehi to the Network Connecting to Network Ports, SEHI-22 and SEHI-24 EPIM-2 Connecting to Network Ports, SEHI-32 and SEHI-34 Connecting a UTP Segment to an EPIM-T EPIM-T Cross-over Switch Connecting to the Network Connecting to the Network Connecting to the Network Connecting a Thin-Net Segment to an EPIM-C EPIM-C Connecting an AUI Cable to an EPIM-A EPIM-A Connecting an AUI Cable to an EPIM-X Finishing the Installation On Position Toward Back Epim OFF Position Toward Front Chapter Troubleshooting Installation CHECK-OUT Using Lanview PWR CPU Troubleshooting CLN Using the Reset ButtonRCV LNK Chapter Local Management Local Management Management Terminal Requirements Console Cable Conﬁguration Management Terminal Connection Management Terminal Setup Parameters Menu Function Selection Display SetupGeneral Setup Setup Local Management Accessing Local Management Sehi Local Management Feature Selection Screen Local Management Using the Local Management Screens Community Name Table Screen Access Community Name Editing the Community Name Field Conﬁguration Screen IP Address Default Gateway Port Enable OverrideSetting the IP Address SubNet Mask Setting the Subnet Mask Setting the Default Gateway Using the Port Enable Override Exiting the Configuration Screen Trap Table Screen Configuring the Trap Table Snmp Community NameTraps Trap IP Address Exiting the Trap Table Screen Snmp Tools Screen OID Prepend GetSet Get Next Walk Recall-OIDStep Cycles Getting Individual OIDs Getting the Next OID Setting an OID Viewing Multiple OIDs Cycling Through OIDs Walking Through OIDsStepping Through OIDs Exiting the Snmp Tools Screen Device Statistics Screen Errors Received CRC ErrorsAlignment Errors Port Admin. Status Enable Port Disable PortUpdate-Freq Port Seg. Status Using the Enable Port Command Selecting the Appropriate Module/Port Using the Disable Port Command Exiting the Device Statistics Screen Appendix a Twisted Pair Wiring Tables Twisted Pair Wiring Tables A-2 A-3 A-4 Drop Device From Punch Down To RJ-45 Into Block Wallplate Ofﬁce10BASE-T A-6 A-7 SEHI-32/34 Punch Wall Plate Champ Down Block If Required Ethernet Device Figure A-1. Punch Down Block A-9 Power Supply Cord GermanSpanish French